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i'm kim newton from the office of

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communications at nasa's nasa

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headquarters

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i'd like to welcome everyone to the low

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density supersonic decelerator ldsd

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overview briefing today including our

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friends from the media i'd like to start

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out by introducing our panel

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participants starting to my left we have

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captain bruce haye

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captain haye is the u.s navy commanding

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officer of the pacific missile range

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facility here in kauai

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to his left is steve jerzik steve is the

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associate administrator for the space

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technology mission directorate at nasa

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headquarters in washington

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to steve's left is dr ian clark ian is

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the principal investigator for the low

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density supersonic decelerator at the

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nasa's jet propulsion laboratory in

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pasadena california and next to ian is

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dr mark adler mark is the program

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manager for the low density supersonic

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decelerator also at nasa's jet

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propulsion laboratory in pasadena

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california

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we'll hear some opening remarks for our

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panel members they will take questions

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from reporters in the audience

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next we'll take reporters joining us on

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the telephone please enter star one to

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get into the q a q we'll also take

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questions from our you stream followers

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using the chat box and twitter using the

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hashtag asknasa now i'll turn it over to

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captain haye

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well thank you and good morning from

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kauai and

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the world's largest instrumented

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training and test range we're thrilled

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to be uh supporting nasa again this year

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for the low density supersonic

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decelerator

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it was an amazing test last year and uh

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we're looking forward to hosting them

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again next year so uh you're not here to

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see me i'll gladly turn it over to the

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professionals to my left thank you

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good morning or good afternoon everyone

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depending on where you are and first

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before i get started i want to thank

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captain hay and his team here at pmrf um

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we couldn't have done last year's flight

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test obviously without them and we

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couldn't pull off um this test coming up

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without the great support that we get

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from his team here so thank you thank

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you captain hay um we learned a great

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deal from last year's flight test um and

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used that knowledge to improve the

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design and manufacturing of the hardware

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to enhance its strength and performance

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so this year i'm cautiously optimistic

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that we'll have a fully successful

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flight test

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but either way we're going to gain again

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we're going to gain a tremendous amount

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of knowledge um before i turn things

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over to ian and mark i'll give you the

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details of the flight test i'll take a

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moment to talk about

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how important uh developing and testing

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technologies like we're doing here is to

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nasa

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technology drives exploration and our

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journey to mars and that's why we

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develop new technologies demonstrate

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them on the ground and then eventually

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fly them we have to fly them to prove

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them out and to enable the future agency

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missions both in science and in human

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exploration

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uh nasa space technology mission

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directorate uh sponsoring this project

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as well as many other technology

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projects um developing critical

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capabilities that are needed again for

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the future

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our current and planned investments

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address a high priority challenge in

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achieving safe and affordable deep space

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exploration in fact over the next 18

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months we're going to be launching

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approximately

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six

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flight demonstration missions

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right now we are kind of at the

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technological limits of what we can land

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on mars in terms of size and weight

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we landed about uh one metric ton um the

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curiosity for the msl or curse our rover

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it was about the size of a mini cooper

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and about one metric ton of 2 200 pounds

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and that's about all we can do with the

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current technology that we use which

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actually goes back to the 60s and 70s

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and is derived from the viking missions

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which flew landed on mars in 76. so this

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new technology is required

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to land

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five metric tons for human missions

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maybe 30 and beyond metric tons to the

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surface

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so the parachute we're using today can

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improve proof performance land and mass

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by 100 to 200 percent and that's really

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critical for not only

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future enhanced robotic missions but

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as i mentioned earlier stmd wants six

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additional technology demonstrations a

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couple of those are deep space atomic

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clock to improve deep space navigation

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and green propellant infusion mission

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which is going to develop a higher

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performance

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non-toxic propellant to reduce

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processing time and cost as well as

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provide a higher performance in space

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propulsion

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since the formation of the national

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advisory committee on aeronautics or

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naca in 1915 we've done experiments like

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this to expand humanity's knowledge in

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air and space travel

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as was the case with those early

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pioneers of flight there's no guarantee

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that these sex tests will be completely

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successful that's why we go and fly

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their flight experiments but i'm

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confident again we will learn a great

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deal from the test and gain a lot of

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knowledge now that will shape future

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tests and future systems to land larger

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payloads on the surface of mars

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nasa could be ready for using this

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technology in future land and mars

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missions as early as the 2020s

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and it could be especially beneficial

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for uh missions like mars sample return

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and for human exploration precursor

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missions

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uh nasa space technology mission

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director is making significant real

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progress in addressing many of the

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challenges for achieving safe and

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affordable deep space exploration again

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technology drives uh exploration and our

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journey to mars and developing the

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technologies that will enable future

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exploration of the solar system and

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beyond and this is just one example of

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that we're looking forward to flying

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this week hopefully cross our fingers

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with the weather will cooperate and now

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i'd like to try and turn it over to dr

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clark who's going to tell us more about

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the flight test and the technology thank

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you steve i'd

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give you a little bit of background

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a thousand years ago the explorers

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from this planet and the technologies

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that drove their exploration across the

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expanses of ocean and helped bring the

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first inhabitants to this island relied

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on technologies like using the stars for

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navigation and using the wind to carry

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them across the ocean

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today as we cast our eyes from this land

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of red sand to another place of red sand

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the planet mars we continue to rely on a

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lot of those same technologies our

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spacecraft still use stars to navigate

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across the expanses of space

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we still rely on wind not to carry us

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across the space but to help slow us

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down when we arrive at mars our

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spacecraft enter the atmosphere going 10

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000 miles an hour and it's the oncoming

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wind and large aerodynamic drag devices

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that help produce the drag to slow us

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down to safely land us

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excuse me on the surface of mars

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so a few years ago we landed the

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curiosity rover this was the last of the

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past seven successful missions we've had

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to mars and even before we landed

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curiosity we started to realize that the

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technologies that we had to land robotic

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missions to the surface of mars were

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essentially saturated as we started

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thinking about the next generation of

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more capable more exciting more bold

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missions to mars we started realizing

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that we didn't have the technologies in

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place to land them

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and we had to start today to start

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developing those technologies things

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like inflatable drag devices that we can

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inflate at several times the speed of

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sound and a new supersonic parachute 100

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feet in diameter those are the

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technologies that ldsd is developing to

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enable those future generations of mars

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missions they'll allow more mass to the

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surface of mars and they'll also allow

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us to access more surface itself to

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regions of mars that we haven't had

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available to us in the past and so for

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example if we go to the first image here

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the colored spots denote the areas where

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we could land something like the

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curiosity rover a one ton rover and each

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of those x's are places and locations

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that we've landed previous missions all

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of the region that's shaded in black are

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elevations that are too high that is

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there's not enough atmosphere to slow us

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down if we were to try to land at some

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of these higher elevations with the

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technologies that ldsd is developing the

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something like the curiosity rover we'd

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be able to open up nearly entire surface

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of mars we'd expose much of the southern

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hemisphere and large regions of the

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northern hemisphere as well

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but if we started thinking about the

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next generation of missions we know that

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those are even more massive if we go to

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the next slide

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if we try to rely on the technologies we

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had today to land those those missions

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that would be two to three times heavier

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than the the curiosity rover the graphic

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in the upper half shows where we could

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do that it's largely entirely black

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there's actually a very small region of

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purple if you squint and hold a

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magnifying glass up to your television

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maybe you can see

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but with the ldst technologies the

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inflatable drag devices and the new

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parachute we can open up

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at least half of mars to these increased

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mass payloads we can go back to a lot of

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the same places with these more capable

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missions and more capable instruments

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and we start to open up regions of mars

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for human precursor missions as well

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so last year we came here and we got to

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conduct what was a phenomenally

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successful shakeout test of a test

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architecture that we'd put together just

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to test these technologies and so i've

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got some data from that that i can show

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a video if we show the cue the first

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video

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so we have this test vehicle and mark's

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going to talk a lot in a moment about

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how we we conduct the test but just take

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for granted we're going four times the

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speed of sound and we got to inflate our

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side device an inflatable drag device

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we got to do this all year ahead of

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schedule again last year was really just

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a shakeout test we got lucky in the

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sense that the technologies were ready

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we got data a year ahead of schedule so

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we saw the side inflate phenomenally

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uniformly we saw very little disturbance

281
00:09:37,829 --> 00:09:36,080
to the vehicle during the inflation

282
00:09:39,590 --> 00:09:37,839
process and we got a ton of great

283
00:09:41,110 --> 00:09:39,600
aerodynamic data and error thermodynamic

284
00:09:42,870 --> 00:09:41,120
data and we saw the side perform better

285
00:09:43,990 --> 00:09:42,880
than we even expected if you queue the

286
00:09:45,750 --> 00:09:44,000
next video

287
00:09:47,030 --> 00:09:45,760
we also got early tests of another

288
00:09:48,790 --> 00:09:47,040
device we've had to develop just to

289
00:09:51,590 --> 00:09:48,800
deploy our large supersonic parachute

290
00:09:53,509 --> 00:09:51,600
and go ahead and press play

291
00:09:55,350 --> 00:09:53,519
so here we're going about 2.8 times the

292
00:09:57,590 --> 00:09:55,360
speed of sound we shoot out the back of

293
00:09:59,910 --> 00:09:57,600
the vehicle this large 15-foot diameter

294
00:10:01,750 --> 00:09:59,920
balut balloon parachute device that

295
00:10:02,949 --> 00:10:01,760
helps pull a parachute off the back and

296
00:10:04,870 --> 00:10:02,959
then we tried to take a hundred foot

297
00:10:08,150 --> 00:10:04,880
parachute inflate it into 2000 mile an

298
00:10:09,829 --> 00:10:08,160
hour wind and see what happens now the

299
00:10:12,230 --> 00:10:09,839
data treasure trove that we got from

300
00:10:13,829 --> 00:10:12,240
that test has been tremendous orders of

301
00:10:15,750 --> 00:10:13,839
magnitude better quality and better

302
00:10:17,350 --> 00:10:15,760
quantity than anything we've ever had

303
00:10:19,509 --> 00:10:17,360
we've been using supersonic parachutes

304
00:10:21,829 --> 00:10:19,519
for over 40 years and our understanding

305
00:10:23,430 --> 00:10:21,839
of them really stems from a few tests

306
00:10:25,910 --> 00:10:23,440
that were conducted in the 1960s and the

307
00:10:27,990 --> 00:10:25,920
1970s and the data from that test exists

308
00:10:30,150 --> 00:10:28,000
in a few technical reports and in a few

309
00:10:31,990 --> 00:10:30,160
grainy 16 millimeter videos we've

310
00:10:33,509 --> 00:10:32,000
digitized those i've personally watched

311
00:10:35,030 --> 00:10:33,519
each one of them probably hundreds of

312
00:10:36,710 --> 00:10:35,040
times i've been trying to glean more and

313
00:10:38,389 --> 00:10:36,720
more information about the nature of

314
00:10:40,389 --> 00:10:38,399
these devices how they inflate how they

315
00:10:42,470 --> 00:10:40,399
operate how they behave and we've got

316
00:10:43,509 --> 00:10:42,480
images like if we cue the this still

317
00:10:46,230 --> 00:10:43,519
right here

318
00:10:48,470 --> 00:10:46,240
you see these are images from some 1960s

319
00:10:50,069 --> 00:10:48,480
and early 1970s tests generally we see

320
00:10:52,150 --> 00:10:50,079
the parachute in fleet we get some

321
00:10:54,069 --> 00:10:52,160
understanding of the behavior now if i

322
00:10:56,630 --> 00:10:54,079
compare that to the data set we got last

323
00:10:59,590 --> 00:10:56,640
year just in the quality of the image go

324
00:11:01,110 --> 00:10:59,600
to the the next image please

325
00:11:03,750 --> 00:11:01,120
saw things that we had never seen or

326
00:11:27,509 --> 00:11:03,760
imagined existed before we saw a much

327
00:11:29,750 --> 00:11:28,710
we could see where they interfaced with

328
00:11:31,590 --> 00:11:29,760
the parachute we could see the

329
00:11:33,509 --> 00:11:31,600
individual fabric we could see where the

330
00:11:34,949 --> 00:11:33,519
fabric seams were and we could start to

331
00:11:36,790 --> 00:11:34,959
see things in the nature of the

332
00:11:37,990 --> 00:11:36,800
inflation that we had never known before

333
00:11:39,509 --> 00:11:38,000
in fact when we showed some of these

334
00:11:41,750 --> 00:11:39,519
videos to folks who had been working on

335
00:11:43,110 --> 00:11:41,760
parachutes for 40 years they immediately

336
00:11:45,190 --> 00:11:43,120
thought this was the worst parachute

337
00:11:47,030 --> 00:11:45,200
inflation they'd ever seen

338
00:11:48,870 --> 00:11:47,040
then we started watching the old videos

339
00:11:50,230 --> 00:11:48,880
again and going back and seeing those

340
00:11:51,990 --> 00:11:50,240
and we started realizing that those

341
00:11:53,269 --> 00:11:52,000
behaviors existed previously we just

342
00:11:54,870 --> 00:11:53,279
didn't know what to look for we didn't

343
00:11:56,389 --> 00:11:54,880
have this capable

344
00:11:57,910 --> 00:11:56,399
this data set available to us this

345
00:12:35,350 --> 00:11:57,920
understanding and so we've started

346
00:12:39,110 --> 00:12:37,430
here if we go to the slide

347
00:12:41,190 --> 00:12:39,120
we fundamentally changed both how we

348
00:12:42,550 --> 00:12:41,200
design and analyze a parachute but the

349
00:12:44,550 --> 00:12:42,560
parachute design itself that we're

350
00:12:46,069 --> 00:12:44,560
testing is new we've got a more

351
00:12:47,910 --> 00:12:46,079
curvature to the geometry that helps to

352
00:12:50,150 --> 00:12:47,920
reduce the stresses early on in the

353
00:12:52,389 --> 00:12:50,160
inflation process we've added a lot more

354
00:12:53,590 --> 00:12:52,399
structural high strength material

355
00:12:54,949 --> 00:12:53,600
and the crown of the parachute

356
00:12:56,629 --> 00:12:54,959
throughout the parachute to make it more

357
00:12:58,790 --> 00:12:56,639
robust to a lot of the dynamics that we

358
00:13:00,150 --> 00:12:58,800
saw during the inflation process we've

359
00:13:01,590 --> 00:13:00,160
got a lot of damage tolerant

360
00:13:03,350 --> 00:13:01,600
capabilities such that if part of the

361
00:13:04,710 --> 00:13:03,360
fabric begins to tear

362
00:13:06,870 --> 00:13:04,720
it won't propagate through the rest of

363
00:13:08,790 --> 00:13:06,880
the parachute overall it's a much

364
00:13:10,230 --> 00:13:08,800
stronger much more robust parachute that

365
00:13:12,310 --> 00:13:10,240
we think is going to

366
00:13:14,150 --> 00:13:12,320
provide another tremendous data set for

367
00:13:16,230 --> 00:13:14,160
us and hopefully perform very well for

368
00:13:17,430 --> 00:13:16,240
us under these conditions so to describe

369
00:13:19,509 --> 00:13:17,440
a little bit about how we get the

370
00:13:20,629 --> 00:13:19,519
technologies to the conditions i'll pass

371
00:13:25,590 --> 00:13:20,639
it to mark

372
00:13:29,190 --> 00:13:27,350
you can advance

373
00:13:31,350 --> 00:13:29,200
to the slide showing the site and the

374
00:13:33,030 --> 00:13:31,360
parachute

375
00:13:34,949 --> 00:13:33,040
so this shows the two technologies that

376
00:13:36,629 --> 00:13:34,959
we're going to be testing as ian said we

377
00:13:38,310 --> 00:13:36,639
had a shakeout flight last year we

378
00:13:39,670 --> 00:13:38,320
actually tested our vehicle to make sure

379
00:13:41,750 --> 00:13:39,680
we could get these technologies to the

380
00:13:43,590 --> 00:13:41,760
right conditions we were in fact able to

381
00:13:44,870 --> 00:13:43,600
test the syad that's that donut looking

382
00:13:46,150 --> 00:13:44,880
thing that ian is standing in the middle

383
00:13:48,470 --> 00:13:46,160
of you can see with his outstretched

384
00:13:49,829 --> 00:13:48,480
arms it's about 20 feet in diameter it

385
00:13:51,750 --> 00:13:49,839
is used to increase the diameter of the

386
00:13:53,829 --> 00:13:51,760
vehicle from 15 feet to 20 feet very

387
00:13:55,350 --> 00:13:53,839
rapidly at mach 4. and we were able to

388
00:13:56,710 --> 00:13:55,360
test it last year fortunately and so in

389
00:13:58,150 --> 00:13:56,720
fact we now have that technology

390
00:14:00,069 --> 00:13:58,160
qualified for use at mars that's the

391
00:14:01,590 --> 00:14:00,079
first of two stages that we need of

392
00:14:03,670 --> 00:14:01,600
deceleration to slow down these very

393
00:14:04,790 --> 00:14:03,680
heavy payloads at mars the second stage

394
00:14:06,150 --> 00:14:04,800
is the parachute you see though it's not

395
00:14:08,069 --> 00:14:06,160
to the same scale it's a very large

396
00:14:09,350 --> 00:14:08,079
parachute it is 100 feet in diameter if

397
00:14:11,269 --> 00:14:09,360
it's laid out on the ground and you can

398
00:14:12,550 --> 00:14:11,279
see our 15-foot test vehicle hanging

399
00:14:14,230 --> 00:14:12,560
there at the bottom of it that

400
00:14:15,509 --> 00:14:14,240
technology is now a new parachute that

401
00:14:16,629 --> 00:14:15,519
we developed this year since again last

402
00:14:18,310 --> 00:14:16,639
year we were able to get an advanced

403
00:14:19,590 --> 00:14:18,320
test and we were able to see

404
00:14:20,870 --> 00:14:19,600
things about the parachute that didn't

405
00:14:22,710 --> 00:14:20,880
behave as we expected we saw the

406
00:14:24,710 --> 00:14:22,720
parachute get destroyed in the test now

407
00:14:25,829 --> 00:14:24,720
we've developed a much more robust more

408
00:14:27,350 --> 00:14:25,839
stronger parachute they're going to be

409
00:14:28,949 --> 00:14:27,360
able to test this time

410
00:14:30,310 --> 00:14:28,959
so let me go on to the next slide and

411
00:14:31,990 --> 00:14:30,320
show you how we tested this parachute on

412
00:14:33,590 --> 00:14:32,000
the ground before we flew it before

413
00:14:34,949 --> 00:14:33,600
we're going to fly it this week in the

414
00:14:36,629 --> 00:14:34,959
upper atmosphere

415
00:14:38,069 --> 00:14:36,639
this is at the naval air weapon station

416
00:14:39,590 --> 00:14:38,079
in china lake california another navy

417
00:14:41,590 --> 00:14:39,600
base that we use for doing our testing

418
00:14:43,590 --> 00:14:41,600
it's a four mile long rocket sled track

419
00:14:44,790 --> 00:14:43,600
it's a railroad track that rockets go on

420
00:14:45,910 --> 00:14:44,800
we carry up the parachute on a

421
00:14:47,750 --> 00:14:45,920
helicopter and drop it out of the

422
00:14:50,470 --> 00:14:47,760
helicopter the parachute inflates as you

423
00:14:52,230 --> 00:14:50,480
see there and then once a large bullet

424
00:14:53,509 --> 00:14:52,240
goes into that funnel that you see right

425
00:14:55,750 --> 00:14:53,519
there you see it coming down as soon as

426
00:14:57,110 --> 00:14:55,760
that latches in the rockets fire and the

427
00:14:58,870 --> 00:14:57,120
rockets pull on that rope through a

428
00:15:00,550 --> 00:14:58,880
pulley pulling the parachute straight

429
00:15:01,990 --> 00:15:00,560
down with over one hundred thousand

430
00:15:03,350 --> 00:15:02,000
pounds of force

431
00:15:04,710 --> 00:15:03,360
this parachute was supposed to survive

432
00:15:06,790 --> 00:15:04,720
to eighty thousand pounds and survived

433
00:15:08,470 --> 00:15:06,800
to 120 000 pounds and so we've shown

434
00:15:09,829 --> 00:15:08,480
that it has the strength it needs to

435
00:15:11,829 --> 00:15:09,839
survive the loads we'll experience at

436
00:15:13,110 --> 00:15:11,839
mars in the full open configuration

437
00:15:15,350 --> 00:15:13,120
we're now going to be testing it in the

438
00:15:17,030 --> 00:15:15,360
upper atmosphere here over kawaii where

439
00:15:18,150 --> 00:15:17,040
we can actually simulate the thin air of

440
00:15:19,990 --> 00:15:18,160
mars with the thin air of the

441
00:15:21,990 --> 00:15:20,000
stratosphere above our above our heads

442
00:15:23,189 --> 00:15:22,000
here do that at supersonic speeds test

443
00:15:24,470 --> 00:15:23,199
the parachute at high speeds and see how

444
00:15:26,629 --> 00:15:24,480
it behaves not just in the fully open

445
00:15:27,990 --> 00:15:26,639
configuration but as it inflates as you

446
00:15:29,430 --> 00:15:28,000
saw last time the inflation was very

447
00:15:31,430 --> 00:15:29,440
complicated so now we're going to see

448
00:15:32,470 --> 00:15:31,440
how it inflates in the supersonic flow

449
00:15:33,750 --> 00:15:32,480
and the test that we're going to do this

450
00:15:34,870 --> 00:15:33,760
week or next

451
00:15:35,990 --> 00:15:34,880
so let's go ahead and run this one this

452
00:15:37,430 --> 00:15:36,000
is a little advanced view of a

453
00:15:38,470 --> 00:15:37,440
technology that we're going to be we're

454
00:15:40,310 --> 00:15:38,480
going to be developing more over the

455
00:15:42,069 --> 00:15:40,320
next several months this is another

456
00:15:44,389 --> 00:15:42,079
sciad it's like the 20 foot diameter

457
00:15:45,829 --> 00:15:44,399
side but this one is 26 feet in diameter

458
00:15:47,030 --> 00:15:45,839
it's much larger side but it's actually

459
00:15:48,949 --> 00:15:47,040
not much heavier so it's a much more

460
00:15:50,550 --> 00:15:48,959
advanced technology it's more efficient

461
00:15:52,389 --> 00:15:50,560
and this shows a rocket sled test again

462
00:15:54,150 --> 00:15:52,399
at the same facility at china lake and

463
00:15:57,189 --> 00:15:54,160
slow motion where we deploy the side

464
00:15:58,790 --> 00:15:57,199
from a test vehicle at 250 miles an hour

465
00:16:00,150 --> 00:15:58,800
to simulate the flow of the and the

466
00:16:01,829 --> 00:16:00,160
loads it will experience at mars there

467
00:16:03,430 --> 00:16:01,839
it is at full speed going over the

468
00:16:06,629 --> 00:16:03,440
camera which then of course gets knocked

469
00:16:09,350 --> 00:16:07,910
so that was actually a very successful

470
00:16:10,870 --> 00:16:09,360
test and we showed for the first time we

471
00:16:12,389 --> 00:16:10,880
can we can build this very large site

472
00:16:14,470 --> 00:16:12,399
and it stays inflated inflates down the

473
00:16:15,990 --> 00:16:14,480
track and so we're hoping uh steve to

474
00:16:17,350 --> 00:16:16,000
actually test that supersonically in the

475
00:16:19,670 --> 00:16:17,360
future

476
00:16:21,269 --> 00:16:19,680
so next slide actually we have now the

477
00:16:22,870 --> 00:16:21,279
this this model here so i'll explain to

478
00:16:24,230 --> 00:16:22,880
you a little bit about our test vehicle

479
00:16:25,189 --> 00:16:24,240
and how we fly we loft it up on a

480
00:16:26,710 --> 00:16:25,199
balloon

481
00:16:28,710 --> 00:16:26,720
and i'll show you the what the the

482
00:16:30,949 --> 00:16:28,720
overall profile is of the flight once we

483
00:16:32,310 --> 00:16:30,959
get it up there we use this solid rocket

484
00:16:34,310 --> 00:16:32,320
motor in the middle here called a star

485
00:16:36,790 --> 00:16:34,320
48 it's very powerful solid rocket motor

486
00:16:39,189 --> 00:16:36,800
that accelerates it from zero to mach

487
00:16:40,629 --> 00:16:39,199
four in a little over a minute and is

488
00:16:41,590 --> 00:16:40,639
then flying through the air in about

489
00:16:43,110 --> 00:16:41,600
this direction something you know we

490
00:16:44,870 --> 00:16:43,120
call this a flying saucer but it doesn't

491
00:16:46,389 --> 00:16:44,880
spin around or fly like this it flies

492
00:16:48,389 --> 00:16:46,399
into the wind directly just like a mars

493
00:16:50,150 --> 00:16:48,399
entry capsule would when it enters mars

494
00:16:51,829 --> 00:16:50,160
this blunt end provides a lot of drag to

495
00:16:53,350 --> 00:16:51,839
slow down the vehicle at mars and this

496
00:16:55,189 --> 00:16:53,360
is shaped just like a mars vehicle would

497
00:16:56,949 --> 00:16:55,199
be shaped and is the same size as our

498
00:16:58,550 --> 00:16:56,959
mars entry vehicle so we can present the

499
00:17:00,870 --> 00:16:58,560
same environment to our devices that we

500
00:17:02,150 --> 00:17:00,880
would see at mars then to get the air

501
00:17:03,910 --> 00:17:02,160
the right air density we have to go up

502
00:17:05,510 --> 00:17:03,920
very high in our atmosphere up to 180

503
00:17:06,789 --> 00:17:05,520
000 feet and we have to get it up going

504
00:17:08,870 --> 00:17:06,799
to mach 4 that's what the big rocket

505
00:17:10,870 --> 00:17:08,880
motor is for so this thing gets spun up

506
00:17:12,470 --> 00:17:10,880
it accelerates up to mach 4 and then

507
00:17:13,990 --> 00:17:12,480
from there we deploy the side which is

508
00:17:15,510 --> 00:17:14,000
packed tightly against the vehicle a

509
00:17:17,510 --> 00:17:15,520
supersonic inflatable aerodynamic

510
00:17:19,429 --> 00:17:17,520
accelerator it then inflates in a few

511
00:17:20,630 --> 00:17:19,439
tenths of a second and make a donut

512
00:17:22,870 --> 00:17:20,640
around the vehicle that's 20 feet in

513
00:17:25,110 --> 00:17:22,880
diameter to slow it down from about mach

514
00:17:27,669 --> 00:17:25,120
3 and then we deploy that balloon that

515
00:17:28,870 --> 00:17:27,679
ian showed it's a the the yellow ram air

516
00:17:31,270 --> 00:17:28,880
balloon that's been used to pull out the

517
00:17:33,909 --> 00:17:31,280
parachute at about mach 2.9 once that

518
00:17:35,350 --> 00:17:33,919
all slows down to about mach 2.35 the

519
00:17:37,510 --> 00:17:35,360
parachute is pulled out of the pack and

520
00:17:39,270 --> 00:17:37,520
a mach 2.35 it's fully exposed to the

521
00:17:41,110 --> 00:17:39,280
flow and at that point the parachute

522
00:17:42,630 --> 00:17:41,120
then opens up and is able to do its

523
00:17:44,230 --> 00:17:42,640
mission where we then observe the

524
00:17:45,750 --> 00:17:44,240
parachute in detail with the very high

525
00:17:47,430 --> 00:17:45,760
resolution powerful cameras we have in

526
00:17:48,870 --> 00:17:47,440
the vehicle so this is the parachute

527
00:17:50,070 --> 00:17:48,880
camera gets pulled out of these are the

528
00:17:51,669 --> 00:17:50,080
cameras over here that are looking

529
00:17:54,310 --> 00:17:51,679
straight up at the parachute we have

530
00:17:56,070 --> 00:17:54,320
high resolution high speed cameras color

531
00:17:57,750 --> 00:17:56,080
stereo cameras to give us many different

532
00:17:59,350 --> 00:17:57,760
views of the parachute inflation and

533
00:18:00,870 --> 00:17:59,360
look at those detailed images and learn

534
00:18:02,710 --> 00:18:00,880
exactly what happened in that parachute

535
00:18:04,390 --> 00:18:02,720
inflation event through the supersonic

536
00:18:05,669 --> 00:18:04,400
flight and through subsonic flight we

537
00:18:07,190 --> 00:18:05,679
also measured the trajectory very

538
00:18:09,190 --> 00:18:07,200
accurately so we know how much the

539
00:18:10,230 --> 00:18:09,200
devices are slowing the system we know

540
00:18:11,830 --> 00:18:10,240
what trajectory had followed what

541
00:18:13,029 --> 00:18:11,840
density air it was in when it was doing

542
00:18:15,029 --> 00:18:13,039
it and then we can reconstruct the

543
00:18:16,710 --> 00:18:15,039
aerodynamics of these devices which then

544
00:18:18,470 --> 00:18:16,720
allows future missions to mars to use

545
00:18:19,909 --> 00:18:18,480
all that data and simulate how these

546
00:18:21,510 --> 00:18:19,919
devices will work at mars so then they

547
00:18:22,950 --> 00:18:21,520
can get great confidence that these

548
00:18:24,710 --> 00:18:22,960
things will work at mars when they want

549
00:18:26,950 --> 00:18:24,720
to put their expensive missions on these

550
00:18:28,390 --> 00:18:26,960
parachutes and inflatable decelerators

551
00:18:29,510 --> 00:18:28,400
so let me put up the next slide here and

552
00:18:31,590 --> 00:18:29,520
show you what the overall mission looks

553
00:18:33,270 --> 00:18:31,600
like here out of kauai

554
00:18:35,669 --> 00:18:33,280
so you see it's just as a schematic we

555
00:18:37,590 --> 00:18:35,679
launch from the from the pmrf base just

556
00:18:39,750 --> 00:18:37,600
uh just a little bit north of here a

557
00:18:41,590 --> 00:18:39,760
large 34 million cubic foot helium

558
00:18:43,110 --> 00:18:41,600
balloon this is a helium balloon that's

559
00:18:44,549 --> 00:18:43,120
a standard

560
00:18:45,990 --> 00:18:44,559
balloon that's used for launching

561
00:18:47,270 --> 00:18:46,000
scientific missions this is normally

562
00:18:49,110 --> 00:18:47,280
used for astrophysics missions where you

563
00:18:50,789 --> 00:18:49,120
put telescopes high in the atmosphere to

564
00:18:52,310 --> 00:18:50,799
be able to look into space we're using

565
00:18:54,310 --> 00:18:52,320
it to launch our seven thousand pound

566
00:18:56,549 --> 00:18:54,320
test vehicle we get it up to with the

567
00:18:57,830 --> 00:18:56,559
balloon 120 000 feet most of the way to

568
00:18:59,029 --> 00:18:57,840
where we need to be

569
00:19:00,390 --> 00:18:59,039
once we get up to that altitude and

570
00:19:02,310 --> 00:19:00,400
we're in a good position over the ocean

571
00:19:04,470 --> 00:19:02,320
we then drop the test vehicle within a

572
00:19:06,470 --> 00:19:04,480
few tenths of a second spin motors fire

573
00:19:08,150 --> 00:19:06,480
to spin up the test vehicle we then fire

574
00:19:09,909 --> 00:19:08,160
the main rocket motor to accelerate it

575
00:19:11,990 --> 00:19:09,919
in over 71 seconds it will accelerate

576
00:19:14,070 --> 00:19:12,000
from zero to mach four and by that time

577
00:19:15,909 --> 00:19:14,080
it's also now going at about 180 000

578
00:19:17,029 --> 00:19:15,919
feet above above the surface where the

579
00:19:19,029 --> 00:19:17,039
air is about the right density where

580
00:19:20,630 --> 00:19:19,039
these devices will be used at mars once

581
00:19:22,470 --> 00:19:20,640
we're going mock forward 180 thousand

582
00:19:24,310 --> 00:19:22,480
feet we can now deploy the devices

583
00:19:25,830 --> 00:19:24,320
observe their operation and test them

584
00:19:27,669 --> 00:19:25,840
it's going roughly horizontally to give

585
00:19:29,430 --> 00:19:27,679
us a lot of time at condition and then

586
00:19:30,870 --> 00:19:29,440
we then slow the vehicle down on the

587
00:19:32,710 --> 00:19:30,880
side then on the parachute and

588
00:19:34,230 --> 00:19:32,720
eventually the vehicle arcs over on the

589
00:19:35,750 --> 00:19:34,240
parachute and that same test parachute

590
00:19:37,750 --> 00:19:35,760
is also used to land the vehicle in the

591
00:19:39,190 --> 00:19:37,760
water it lands out in the ocean and we

592
00:19:40,390 --> 00:19:39,200
send our recovery ships to get it which

593
00:19:41,909 --> 00:19:40,400
i'll show you in a second here so let's

594
00:19:46,150 --> 00:19:41,919
show the google earth animation from

595
00:19:49,830 --> 00:19:48,230
just south of the runway here at pmrf

596
00:19:51,909 --> 00:19:49,840
that blue track is the ascent of the

597
00:19:53,590 --> 00:19:51,919
balloon it goes over the island a little

598
00:19:54,549 --> 00:19:53,600
bit and then departs out across into the

599
00:19:56,470 --> 00:19:54,559
ocean

600
00:19:58,230 --> 00:19:56,480
as the blue line continues it would

601
00:20:00,150 --> 00:19:58,240
allow it to get up to altitude we had to

602
00:20:02,310 --> 00:20:00,160
wait for it to get up to the about two

603
00:20:03,590 --> 00:20:02,320
hours for it to get up to 120 000 feet

604
00:20:05,270 --> 00:20:03,600
at the end of the blue line is float

605
00:20:07,190 --> 00:20:05,280
that red line is when we drop it and

606
00:20:08,630 --> 00:20:07,200
fire the vehicle and then goes up high

607
00:20:10,789 --> 00:20:08,640
in altitude to 100 and actually up to

608
00:20:12,310 --> 00:20:10,799
about 200 000 feet in that test it then

609
00:20:14,150 --> 00:20:12,320
conducted the test and then it arced

610
00:20:15,190 --> 00:20:14,160
over landed in the ocean and the next

611
00:20:17,190 --> 00:20:15,200
slide

612
00:20:18,310 --> 00:20:17,200
after landed we sent out a recovery boat

613
00:20:19,510 --> 00:20:18,320
and there is the vehicle after the

614
00:20:21,350 --> 00:20:19,520
mission being picked up out of the water

615
00:20:22,710 --> 00:20:21,360
you see the side hanging on the side we

616
00:20:24,470 --> 00:20:22,720
also recovered the parachute we

617
00:20:25,830 --> 00:20:24,480
recovered the balut we recovered

618
00:20:27,510 --> 00:20:25,840
everything we got all of our data back

619
00:20:28,870 --> 00:20:27,520
our high speed video and high resolution

620
00:20:30,149 --> 00:20:28,880
video all are on recorders on the

621
00:20:31,350 --> 00:20:30,159
vehicle they're not telemetered down so

622
00:20:32,789 --> 00:20:31,360
we need to get the vehicle or at least

623
00:20:34,549 --> 00:20:32,799
the recorder in order to get all that

624
00:20:35,669 --> 00:20:34,559
data that was all successful last year

625
00:20:37,510 --> 00:20:35,679
and that's exactly what we're going to

626
00:20:39,029 --> 00:20:37,520
do again this year

627
00:20:40,789 --> 00:20:39,039
i mean i'd like to thank the again

628
00:20:42,230 --> 00:20:40,799
captain hay and pmrf this is really a

629
00:20:43,990 --> 00:20:42,240
unique facility for us to be able to do

630
00:20:45,430 --> 00:20:44,000
this test there's really no other place

631
00:20:46,470 --> 00:20:45,440
in the world we could find where we had

632
00:20:48,310 --> 00:20:46,480
the right conditions to be able to

633
00:20:50,070 --> 00:20:48,320
launch a balloon to have it go out away

634
00:20:51,510 --> 00:20:50,080
from populated areas to have support

635
00:20:52,950 --> 00:20:51,520
services here at the range all the

636
00:20:54,470 --> 00:20:52,960
communications the instrumentation that

637
00:20:55,750 --> 00:20:54,480
captain haye mentioned to provide

638
00:20:57,510 --> 00:20:55,760
support for the mission get our data

639
00:20:58,950 --> 00:20:57,520
back do the operations

640
00:21:00,710 --> 00:20:58,960
so now i'll show you a little bit of the

641
00:21:02,149 --> 00:21:00,720
balloon here this is a scale model of

642
00:21:03,990 --> 00:21:02,159
the balloon it's about eight feet in

643
00:21:05,750 --> 00:21:04,000
diameter and standing next to it is

644
00:21:07,430 --> 00:21:05,760
petty officer quinlan

645
00:21:09,590 --> 00:21:07,440
it's just to give you some scale the

646
00:21:11,669 --> 00:21:09,600
actual balloon is over 400 feet in

647
00:21:13,270 --> 00:21:11,679
diameter and in fact our 15-foot test

648
00:21:15,110 --> 00:21:13,280
vehicle is about the size of a coffee

649
00:21:17,270 --> 00:21:15,120
cup lid if petty officer quinlan if you

650
00:21:19,190 --> 00:21:17,280
can hold out the coffee cup lid next to

651
00:21:21,669 --> 00:21:19,200
the balloon there so you can see how the

652
00:21:23,190 --> 00:21:21,679
the size how small that is compared to

653
00:21:25,029 --> 00:21:23,200
the balloon so it's a very very large

654
00:21:27,510 --> 00:21:25,039
balloon it would sit very settle very

655
00:21:29,029 --> 00:21:27,520
nicely into the rose bowl uh carrying

656
00:21:30,149 --> 00:21:29,039
the vehicle up to the high altitude

657
00:21:31,350 --> 00:21:30,159
being able to carry seven thousand

658
00:21:33,750 --> 00:21:31,360
pounds to altitude again i'd like to

659
00:21:34,789 --> 00:21:33,760
thank also the uh wallops life facility

660
00:21:36,230 --> 00:21:34,799
and the columbia scientific balloon

661
00:21:37,909 --> 00:21:36,240
facility for providing this tremendous

662
00:21:39,430 --> 00:21:37,919
capability uh to allow our vehicle to

663
00:21:41,830 --> 00:21:39,440
get up to altitude and make this a very

664
00:21:44,630 --> 00:21:41,840
cost effective approach to testing these

665
00:21:46,149 --> 00:21:44,640
technologies into mars conditions so

666
00:21:48,630 --> 00:21:46,159
with that i guess i'll turn it back over

667
00:21:50,149 --> 00:21:48,640
to kim for questions

668
00:21:51,669 --> 00:21:50,159
now we'll turn it over to questions

669
00:21:53,430 --> 00:21:51,679
first we'll go to reporters here in the

670
00:21:55,590 --> 00:21:53,440
audience then we'll go to reporters on

671
00:21:57,830 --> 00:21:55,600
the telephone if you're on the telephone

672
00:21:59,350 --> 00:21:57,840
please hit star one to get into the

673
00:22:01,350 --> 00:21:59,360
question queue

674
00:22:02,870 --> 00:22:01,360
and then we'll go to social media so for

675
00:22:04,390 --> 00:22:02,880
questions in the audience please raise

676
00:22:06,390 --> 00:22:04,400
your hand and we'll get a mic over to

677
00:22:07,830 --> 00:22:06,400
you and state your name and media

678
00:22:09,430 --> 00:22:07,840
affiliation

679
00:22:11,590 --> 00:22:09,440
any any hear

680
00:22:15,830 --> 00:22:11,600
from reporters right here in the front

681
00:22:20,310 --> 00:22:18,310
i'm chuck lasker with social kawaii and

682
00:22:23,029 --> 00:22:20,320
i guess my question is

683
00:22:25,029 --> 00:22:23,039
with all this technology in your opinion

684
00:22:28,630 --> 00:22:25,039
how soon do you think we're going to put

685
00:22:32,470 --> 00:22:29,830
to

686
00:22:34,710 --> 00:22:32,480
put humans on mars in the 2030s

687
00:22:36,870 --> 00:22:34,720
and so we're developing a suite of edl

688
00:22:38,310 --> 00:22:36,880
technologies to land larger masses at

689
00:22:40,870 --> 00:22:38,320
higher elevations to access more of the

690
00:22:42,950 --> 00:22:40,880
planet like like ian said but we need a

691
00:22:43,990 --> 00:22:42,960
whole host of other technologies we need

692
00:22:46,149 --> 00:22:44,000
advanced in space enforcement

693
00:22:47,430 --> 00:22:46,159
technologies to shorten the trip time we

694
00:22:48,630 --> 00:22:47,440
need environmental control and life

695
00:22:49,990 --> 00:22:48,640
support system technologies that are

696
00:22:51,909 --> 00:22:50,000
more efficient so the astronauts can

697
00:22:53,590 --> 00:22:51,919
survive the trip and then we need

698
00:22:56,710 --> 00:22:53,600
systems on the surface of mars that can

699
00:22:57,990 --> 00:22:56,720
produce things like fuel and oxygen and

700
00:22:58,710 --> 00:22:58,000
so we can kind of live off the land

701
00:23:00,070 --> 00:22:58,720
because we're not going to be able to

702
00:23:01,669 --> 00:23:00,080
take everything with us

703
00:23:04,390 --> 00:23:01,679
so it's going to take a couple of

704
00:23:06,390 --> 00:23:04,400
decades to develop all that technology

705
00:23:10,549 --> 00:23:06,400
edl technologies are critical to making

706
00:23:14,310 --> 00:23:10,559
that happen and ldsd is a really great

707
00:23:15,190 --> 00:23:14,320
advancement in edl technology

708
00:23:17,190 --> 00:23:15,200
okay

709
00:23:19,029 --> 00:23:17,200
next we have a question from our

710
00:23:21,830 --> 00:23:19,039
telephone bridge irene klotz from

711
00:23:23,750 --> 00:23:21,840
reuters irene

712
00:23:26,230 --> 00:23:23,760
kim i have a couple questions the first

713
00:23:29,029 --> 00:23:26,240
i think is for mark did i hear you say

714
00:23:30,789 --> 00:23:29,039
correctly that the diameter of the cyad

715
00:23:33,110 --> 00:23:30,799
for this flight is

716
00:23:34,950 --> 00:23:33,120
larger 26 feet or were you just

717
00:23:37,110 --> 00:23:34,960
referring to the ground test that you

718
00:23:39,029 --> 00:23:37,120
did on that with that rail track and i

719
00:23:40,549 --> 00:23:39,039
have another question as well okay so

720
00:23:42,230 --> 00:23:40,559
for the first one that that was a

721
00:23:43,430 --> 00:23:42,240
26-foot diameter side is not the one

722
00:23:45,510 --> 00:23:43,440
that we're flying this year we hope to

723
00:23:46,870 --> 00:23:45,520
fly that in a future flight the one that

724
00:23:48,230 --> 00:23:46,880
we're flying this year is 20 feet in

725
00:23:49,590 --> 00:23:48,240
diameter it's like the one we flew last

726
00:23:53,029 --> 00:23:49,600
year we need that to present the right

727
00:23:55,750 --> 00:23:53,039
environment for the parachute test

728
00:23:57,270 --> 00:23:55,760
and then um i guess on that note i don't

729
00:23:59,190 --> 00:23:57,280
know who it was who

730
00:24:01,270 --> 00:23:59,200
referenced that with the successful

731
00:24:03,750 --> 00:24:01,280
deployment of the syad last year that

732
00:24:06,470 --> 00:24:03,760
this is now flight qualified for mars

733
00:24:08,310 --> 00:24:06,480
and someone else had said that

734
00:24:10,470 --> 00:24:08,320
that the

735
00:24:13,190 --> 00:24:10,480
the with the parachute test

736
00:24:15,430 --> 00:24:13,200
could be ready to be tested on mars as

737
00:24:17,510 --> 00:24:15,440
early as the mars 2020

738
00:24:19,029 --> 00:24:17,520
rover and

739
00:24:21,909 --> 00:24:19,039
just wanted to know i mean obviously you

740
00:24:24,710 --> 00:24:21,919
don't need the extra

741
00:24:27,350 --> 00:24:24,720
math on on that payload but would is

742
00:24:30,830 --> 00:24:27,360
nasa actually considering using either

743
00:24:33,190 --> 00:24:30,840
of these systems on the mars 2020

744
00:24:35,029 --> 00:24:33,200
rover delivery thanks right so at this

745
00:24:36,470 --> 00:24:35,039
time the mars 2020 mission design

746
00:24:38,149 --> 00:24:36,480
doesn't require the new technologies in

747
00:24:39,830 --> 00:24:38,159
fact it was designed exactly in that way

748
00:24:40,950 --> 00:24:39,840
because they didn't know and they still

749
00:24:42,310 --> 00:24:40,960
don't know whether or not we're going to

750
00:24:43,269 --> 00:24:42,320
succeed in our technology development

751
00:24:45,110 --> 00:24:43,279
and they have to proceed with the

752
00:24:46,470 --> 00:24:45,120
designs of their systems and so we'll

753
00:24:47,750 --> 00:24:46,480
wait to see after we complete our

754
00:24:48,950 --> 00:24:47,760
technology development if there's some

755
00:24:50,710 --> 00:24:48,960
reason that they might consider to need

756
00:24:53,190 --> 00:24:50,720
them but right now it is not the plan

757
00:24:55,750 --> 00:24:53,200
for 2020 to to use or require these

758
00:24:57,510 --> 00:24:55,760
technologies so the next opportunity we

759
00:24:59,029 --> 00:24:57,520
expect will be for components of mars

760
00:25:00,470 --> 00:24:59,039
sample return which in fact 2020 is

761
00:25:02,070 --> 00:25:00,480
beginning 2020 will be collecting

762
00:25:03,750 --> 00:25:02,080
samples that we hope to eventually

763
00:25:05,029 --> 00:25:03,760
return to earth and to do that we have

764
00:25:06,549 --> 00:25:05,039
to put rockets down on the surface of

765
00:25:07,990 --> 00:25:06,559
mars that can launch these samples into

766
00:25:09,750 --> 00:25:08,000
mars orbit those could be very large

767
00:25:11,430 --> 00:25:09,760
systems and they very well may require

768
00:25:12,630 --> 00:25:11,440
the syad and parachute in order to get

769
00:25:15,029 --> 00:25:12,640
that system down to the ground as well

770
00:25:17,590 --> 00:25:15,039
as other future mars exploration and as

771
00:25:19,269 --> 00:25:17,600
steve alluded to to providing cargo

772
00:25:20,870 --> 00:25:19,279
or other services to astronauts on the

773
00:25:23,269 --> 00:25:20,880
surface and again these also provide the

774
00:25:24,390 --> 00:25:23,279
first steps in a many step program for

775
00:25:26,830 --> 00:25:24,400
trying to get to the point where we can

776
00:25:30,470 --> 00:25:26,840
actually have a journey to mars with

777
00:25:34,470 --> 00:25:30,480
humans thank you mark next we have alan

778
00:25:36,870 --> 00:25:34,480
boyle with nbc news alan

779
00:25:40,310 --> 00:25:36,880
hi can you hear me yes

780
00:25:43,350 --> 00:25:40,320
okay great uh i may have missed

781
00:25:46,310 --> 00:25:43,360
some of the some of the presentation but

782
00:25:48,230 --> 00:25:46,320
i wanted to just double check on the

783
00:25:51,909 --> 00:25:48,240
weather outlook i know last year there

784
00:25:54,310 --> 00:25:51,919
was quite a delay because of the winds

785
00:25:56,870 --> 00:25:54,320
what's the outlook and what's the

786
00:25:59,750 --> 00:25:56,880
window in case you do have to

787
00:26:01,669 --> 00:25:59,760
delay the initial attempt thank you

788
00:26:03,190 --> 00:26:01,679
right so in fact as you were referring

789
00:26:04,470 --> 00:26:03,200
to last year our first two week launch

790
00:26:05,909 --> 00:26:04,480
period very much like this year's two

791
00:26:07,350 --> 00:26:05,919
week launch period we were not able to

792
00:26:08,710 --> 00:26:07,360
launch we had wind conditions that

793
00:26:10,549 --> 00:26:08,720
prevented launch because we were not

794
00:26:12,070 --> 00:26:10,559
having the right trajectories to carry

795
00:26:14,310 --> 00:26:12,080
the vehicle off the island and away from

796
00:26:15,669 --> 00:26:14,320
populated areas to make it safe and so

797
00:26:17,029 --> 00:26:15,679
of course we'll only launch a bit safe

798
00:26:18,549 --> 00:26:17,039
and so this year again we're going to be

799
00:26:20,710 --> 00:26:18,559
looking at for these first two weeks for

800
00:26:21,990 --> 00:26:20,720
a possible launch opportunity right now

801
00:26:23,590 --> 00:26:22,000
the outlook actually isn't looking too

802
00:26:24,950 --> 00:26:23,600
bad i'm hopeful that by the end of the

803
00:26:26,549 --> 00:26:24,960
week or early next week we'll have a

804
00:26:28,070 --> 00:26:26,559
good opportunity right now tomorrow

805
00:26:29,669 --> 00:26:28,080
isn't looking so great but we're going

806
00:26:31,590 --> 00:26:29,679
to continue to watch the weather it can

807
00:26:33,029 --> 00:26:31,600
change quickly if we don't get off in

808
00:26:35,110 --> 00:26:33,039
these first two weeks we do in fact have

809
00:26:37,029 --> 00:26:35,120
a backup period in july from july 7th to

810
00:26:37,990 --> 00:26:37,039
17th that we could try and get off on

811
00:26:39,110 --> 00:26:38,000
and where there might be better

812
00:26:40,310 --> 00:26:39,120
conditions in fact that's exactly what

813
00:26:42,310 --> 00:26:40,320
we did last year we didn't get off in

814
00:26:43,669 --> 00:26:42,320
the first launch period and so a couple

815
00:26:45,350 --> 00:26:43,679
weeks later we came back and launched on

816
00:26:47,510 --> 00:26:45,360
the very first day of the next backup

817
00:26:49,269 --> 00:26:47,520
opportunity

818
00:26:52,470 --> 00:26:49,279
okay do we have any more questions here

819
00:26:54,230 --> 00:26:52,480
at pmrf reporters here raise your hand

820
00:26:56,149 --> 00:26:54,240
if you have a question

821
00:26:58,230 --> 00:26:56,159
anybody else here

822
00:27:08,950 --> 00:26:58,240
okay now we'll go to social can we get a

823
00:27:13,190 --> 00:27:11,269
hi actually i have a couple so starting

824
00:27:15,909 --> 00:27:13,200
from twitter the first one is how will

825
00:27:18,789 --> 00:27:15,919
ldsd be controlled

826
00:27:21,269 --> 00:27:18,799
controlled it's uh

827
00:27:23,029 --> 00:27:21,279
it's not actively controlled actually uh

828
00:27:24,950 --> 00:27:23,039
you know we use physics to control the

829
00:27:27,510 --> 00:27:24,960
vehicle uh we point it in the direction

830
00:27:30,070 --> 00:27:27,520
that we we want the vehicle to travel uh

831
00:27:31,990 --> 00:27:30,080
and we use gyroscopic stability to help

832
00:27:33,110 --> 00:27:32,000
stabilize it and maintain it pointed so

833
00:27:35,350 --> 00:27:33,120
in the sense

834
00:27:38,390 --> 00:27:35,360
the vehicle is controlled by thrust drag

835
00:27:40,070 --> 00:27:38,400
gravity and angular momentum

836
00:27:42,710 --> 00:27:40,080
and then also on twitter i have another

837
00:27:44,950 --> 00:27:42,720
one how come aerodynamic aerodynamic

838
00:27:48,549 --> 00:27:44,960
surfaces are smooth rather than dimpled

839
00:27:51,430 --> 00:27:49,990
uh

840
00:27:53,190 --> 00:27:51,440
it depends on what you're trying to do

841
00:27:54,870 --> 00:27:53,200
with the aerodynamic surface uh in the

842
00:27:56,149 --> 00:27:54,880
case of dimples on a golf ball generally

843
00:27:58,870 --> 00:27:56,159
that's to

844
00:28:00,789 --> 00:27:58,880
help keep the boundary layer attached

845
00:28:02,630 --> 00:28:00,799
and have the golf ball fly in a

846
00:28:04,789 --> 00:28:02,640
particular way for our aerodynamic

847
00:28:06,549 --> 00:28:04,799
surfaces we are focused on trying to

848
00:28:09,110 --> 00:28:06,559
produce drag generally that means having

849
00:28:11,350 --> 00:28:09,120
very large blunt

850
00:28:12,549 --> 00:28:11,360
surfaces that face the wind to create

851
00:28:14,470 --> 00:28:12,559
that drag

852
00:28:16,470 --> 00:28:14,480
or creating geometries like parachutes

853
00:28:18,230 --> 00:28:16,480
where you have a giant bowl that's

854
00:28:20,310 --> 00:28:18,240
helping capture and slow down and create

855
00:28:21,669 --> 00:28:20,320
drag that way

856
00:28:23,510 --> 00:28:21,679
and then from facebook we have a

857
00:28:25,430 --> 00:28:23,520
question what is the height of the drop

858
00:28:28,950 --> 00:28:25,440
of ldsd

859
00:28:31,430 --> 00:28:28,960
so it's dropped from 119 to 120 000 feet

860
00:28:33,190 --> 00:28:31,440
it drops for for about 100 or 200 feet

861
00:28:37,190 --> 00:28:33,200
and then it accelerates upwards from

862
00:28:39,430 --> 00:28:37,200
there to 180 to 200 000 feet

863
00:28:42,070 --> 00:28:39,440
okay okay and uh one more from you

864
00:28:45,510 --> 00:28:42,080
stream um what are the g forces on the

865
00:28:48,310 --> 00:28:45,520
system when it opens up at mach 4.

866
00:28:50,149 --> 00:28:48,320
ah in the case of the sciad

867
00:28:51,909 --> 00:28:50,159
generally when we inflate last year and

868
00:28:54,070 --> 00:28:51,919
when we inflate this year it'll be on

869
00:28:56,230 --> 00:28:54,080
the order of three to four g's

870
00:28:58,389 --> 00:28:56,240
during the initial deployment a lot of

871
00:29:00,149 --> 00:28:58,399
that though is because of the the test

872
00:29:02,149 --> 00:29:00,159
vehicle that we have is relatively

873
00:29:03,510 --> 00:29:02,159
lightweight even though it's full scale

874
00:29:05,430 --> 00:29:03,520
because we're constrained in terms of

875
00:29:07,269 --> 00:29:05,440
how much mass we can take to an altitude

876
00:29:09,269 --> 00:29:07,279
it's about one-third the mass of an

877
00:29:11,269 --> 00:29:09,279
equivalent mars entry vehicle so the

878
00:29:14,230 --> 00:29:11,279
g-forces are a lot higher for this test

879
00:29:16,230 --> 00:29:14,240
than they otherwise be would be at mars

880
00:29:18,070 --> 00:29:16,240
great questions from social and remember

881
00:29:21,510 --> 00:29:18,080
if you're following us on social use the

882
00:29:24,070 --> 00:29:21,520
hashtag axenasa so we can get you in the

883
00:29:25,590 --> 00:29:24,080
queue and that's on ustream and twitter

884
00:29:28,470 --> 00:29:25,600
next we'd like to go to back to the

885
00:29:29,909 --> 00:29:28,480
phone bridge we have irene klotz

886
00:29:32,549 --> 00:29:29,919
irene

887
00:29:34,789 --> 00:29:32,559
thanks um i don't recall from last year

888
00:29:36,950 --> 00:29:34,799
um what the time frame is for when a

889
00:29:39,269 --> 00:29:36,960
decision would be made about whether an

890
00:29:40,789 --> 00:29:39,279
attempt to conduct the test tomorrow

891
00:29:43,190 --> 00:29:40,799
would take place

892
00:29:45,029 --> 00:29:43,200
so we have uh opportunities every day to

893
00:29:46,870 --> 00:29:45,039
try and launch from june 2nd to june

894
00:29:48,070 --> 00:29:46,880
12th we decide the day before of a

895
00:29:50,710 --> 00:29:48,080
launch attempt whether or not we have

896
00:29:52,630 --> 00:29:50,720
good conditions so we actually have a

897
00:29:54,070 --> 00:29:52,640
noon meeting on the day before launch

898
00:29:55,430 --> 00:29:54,080
day to go through the conditions the

899
00:29:57,430 --> 00:29:55,440
weather conditions the safety

900
00:29:59,110 --> 00:29:57,440
calculations to determine if it's good

901
00:30:00,470 --> 00:29:59,120
we will then if we if the conditions do

902
00:30:02,470 --> 00:30:00,480
look good we'll proceed with the launch

903
00:30:04,789 --> 00:30:02,480
the folk will come in in the evening

904
00:30:06,149 --> 00:30:04,799
the int team will come in at around 10

905
00:30:08,389 --> 00:30:06,159
10 in the evening to start getting the

906
00:30:10,070 --> 00:30:08,399
vehicle prepared roll it out to the pad

907
00:30:11,510 --> 00:30:10,080
and start preparing it on the pad we

908
00:30:12,789 --> 00:30:11,520
will a lot of the crew comes in then

909
00:30:14,470 --> 00:30:12,799
over the morning two in the morning four

910
00:30:16,470 --> 00:30:14,480
in the morning to uh to fill out the

911
00:30:17,669 --> 00:30:16,480
operations team and then we prepare for

912
00:30:19,750 --> 00:30:17,679
a launch that's going to be between

913
00:30:20,789 --> 00:30:19,760
about 7 30 and 8 in the morning most

914
00:30:22,310 --> 00:30:20,799
likely

915
00:30:24,070 --> 00:30:22,320
that then the vehicle will launch from

916
00:30:25,510 --> 00:30:24,080
from uh at that time and go up to

917
00:30:27,269 --> 00:30:25,520
altitude over about two hours then we

918
00:30:28,630 --> 00:30:27,279
might wait an hour to

919
00:30:30,389 --> 00:30:28,640
get to a good position to float and then

920
00:30:31,669 --> 00:30:30,399
drop and fire the vehicle now there is a

921
00:30:33,590 --> 00:30:31,679
chance that we could be a go for a

922
00:30:35,110 --> 00:30:33,600
launch the day before but then later in

923
00:30:36,549 --> 00:30:35,120
the evening or early that morning we may

924
00:30:38,630 --> 00:30:36,559
determine that the wind conditions the

925
00:30:40,070 --> 00:30:38,640
onshore breezes are not appropriate for

926
00:30:41,990 --> 00:30:40,080
a balloon launch and we may have to

927
00:30:43,269 --> 00:30:42,000
scrub at that time and then recycle and

928
00:30:44,789 --> 00:30:43,279
then come back and have again another

929
00:30:48,070 --> 00:30:44,799
noon meeting that day to see if the next

930
00:30:55,430 --> 00:30:50,950
okay next we have bill harwood with cbs

931
00:31:06,070 --> 00:31:02,070
bill

932
00:31:07,990 --> 00:31:06,080
can you hear me gotcha yeah we got to

933
00:31:10,389 --> 00:31:08,000
thank you yeah i apologize guys on a

934
00:31:11,990 --> 00:31:10,399
cell phone um hey i know you all told us

935
00:31:13,510 --> 00:31:12,000
this last year and i may have missed it

936
00:31:16,149 --> 00:31:13,520
earlier today but could you review the

937
00:31:17,909 --> 00:31:16,159
cost of the the uh the whole project i

938
00:31:20,870 --> 00:31:17,919
guess with the flight last year this one

939
00:31:23,269 --> 00:31:20,880
and what you guys have planned thanks

940
00:31:25,830 --> 00:31:23,279
so the uh the the total runout cost of

941
00:31:27,430 --> 00:31:25,840
ldsd is approximately 230 million

942
00:31:36,230 --> 00:31:27,440
dollars with our current manifest of

943
00:31:39,909 --> 00:31:37,909
okay any other

944
00:31:41,509 --> 00:31:39,919
calls on the line

945
00:31:43,430 --> 00:31:41,519
any other calls here

946
00:31:44,870 --> 00:31:43,440
at pmrf

947
00:31:47,590 --> 00:31:44,880
social

948
00:31:50,470 --> 00:31:47,600
i have one that came in from uh

949
00:31:55,110 --> 00:31:53,430
peter king ask is uh what is the weather

950
00:31:56,789 --> 00:31:55,120
forecast for tomorrow for the launch

951
00:31:57,750 --> 00:31:56,799
attempt i think you might have covered

952
00:32:00,070 --> 00:31:57,760
part of that

953
00:32:01,830 --> 00:32:00,080
yeah so we are looking at the weather

954
00:32:03,590 --> 00:32:01,840
every day for the next several days

955
00:32:05,190 --> 00:32:03,600
we're watching it very intently though

956
00:32:07,029 --> 00:32:05,200
it's it's difficult to make predictions

957
00:32:09,190 --> 00:32:07,039
over many days that right now tomorrow

958
00:32:10,389 --> 00:32:09,200
is not looking particularly favorable we

959
00:32:12,630 --> 00:32:10,399
are still going to go through all the

960
00:32:14,470 --> 00:32:12,640
process tomorrow and give it a shot

961
00:32:15,909 --> 00:32:14,480
right now i'm hopeful that by the end of

962
00:32:18,549 --> 00:32:15,919
the week or early next week we'll have

963
00:32:20,870 --> 00:32:18,559
some better opportunities

964
00:32:24,070 --> 00:32:20,880
okay mark's been honing his skills as a

965
00:32:25,830 --> 00:32:24,080
weather forecaster quite a bit lately

966
00:32:28,710 --> 00:32:25,840
so if we have no further questions this

967
00:32:30,789 --> 00:32:28,720
concludes today's pre-launch ldsd

968
00:32:33,430 --> 00:32:30,799
mission briefing you can follow us on

969
00:32:35,750 --> 00:32:33,440
www.nasa.gov