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okay we'll keep watching um just for the

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viewers uh who are watching along with

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us that'll probably be a bit of a

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challenge for us to

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to lock on to it but it looks like we

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see the craft there and that's what uh

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orion

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inside of right now and will be pushed

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out the back of for the test

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and i'll just give you a call as i can

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watch it if you if you'd like me to

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move right out of the airplane

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a good initial extraction

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in the test vehicle the ptv is away from

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coming down into the programmers

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looks good so far

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we're still falling out of the

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just

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cut the programmers away we're going to

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let it free fall for 10 seconds and

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and stu tell us again what that free

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fall does

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free fall allows gravity to do its job

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and allow us to accelerate to our test

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condition

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and

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the faster we let the vehicle fall

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you know the more it is able to

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accelerate and give us a more

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representative test condition

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closer more closely matches the flight

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entry that we'll see during the ft-1

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so we've had a good

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ford bay cover separation i'm just

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tracking the the ptv the test vehicle at

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and we just cut away

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three pilots out

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just heard the pop from the chute

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inflating

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one of i don't know if rad has this on

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camera

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one shoot's inflated the other two are

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not yet this was

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one of our other plans objectives which

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was

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simulating

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what happens if one of the reefing

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stages

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opens prematurely for some reason

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and if it skips a stage

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uh because we designed this assuming

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that the parachutes

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share the

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reefing yeah thank you yeah reefing is

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is a way to open the the parachute in

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in um

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gently or softly um

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if you went full open it's think of

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going extremely fast and hitting your

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brakes really really hard you put a lot

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of energy

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uh into things right it's it's uh

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dumps a lot of energy both into the

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structure of the vehicle and in the

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parachute and so we have

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ropes that constrain the diameter of the

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parachute and they have pyrotechnic

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timers that allow them to open up say

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ten percent initially and then i think

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uh

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finally remembers the exact number i

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think it's 10 and then 20 percent and

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then we go full open and that allows you

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to open up the chutes gracefully and

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kind of more slowly spread the energy

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into the parachutes and into the vehicle

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again by reefing you kind of control and

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manage that energy and it allows you to

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not design

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and carry quite as much mass in the

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it looks great from here we're seeing a

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really good view thanks uh

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for getting that for us um i guess while

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we watch it uh make its way down to the

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ground we can take a few more questions

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we actually have one for for molly from

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nick lopez

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says what kind of temperatures do you

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predict you'll see during entry based on

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um well we don't get up to the actual

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temperatures that we're going to see in

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in flight in the wind tunnel test but

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for eft one we're predicting a peak

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surface temperature of around 4000

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degrees fahrenheit that's two times the

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temperature of molten lava

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and that's just for our orion's first

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flight test which isn't going to

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completely stress the system as as far

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as orion will once we actually fly

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orion's real missions out to the moon

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and beyond for those missions we're

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going to be seeing peak surface

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temperatures upwards of 5000

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so that brings up another question that

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we've gotten from uh phillip online and

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he asked how can the

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module be adapted for future missions

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does it needs to change before the next

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certain parts of the vehicle are have

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already changed between the first flight

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test and what we're going to be flying

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on future missions

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but the material that surrounds the

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vehicle we call it its thermal

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protection system and that's what

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protects it from those high temperatures

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on the surface it's an insulative layer

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that's also designed to burn away and

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take that energy away from the surface

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um

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that thickness of that material can

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change depending on your on

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your mission and then also we'll learn a

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lot from the exploration flight test 1

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or orion's first flight test and that

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will feed into the design for the future

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flight tests we might need to

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adjust certain thicknesses or adjust

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what material is used for certain

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regions

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and those are the design changes that

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we'll go into between the first flight

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great and it looks like we've got the

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vehicle touched down now on the desert

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in yuma everything looking good stew

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yes uh if you see this i'm assuming

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brad's got the shot you see two of the

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three parachutes uh and they're just

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starting now starting to deflate

141
00:06:32,710 --> 00:06:31,120
um

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00:06:34,710 --> 00:06:32,720
like i said the ground winds here today

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00:06:37,670 --> 00:06:34,720
are in the

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00:06:39,830 --> 00:06:37,680
789 knot range and uh these parachutes

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are very effective and so and one of the

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00:06:43,590 --> 00:06:41,680
things we have to do is make sure we get

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them deflated and

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these the last two are hanging on for a

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little bit

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00:06:49,749 --> 00:06:48,080
but the vehicle's down it was a good

151
00:06:51,510 --> 00:06:49,759
test uh

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00:06:54,629 --> 00:06:51,520
and i saw the ford bay cover we

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00:06:57,189 --> 00:06:54,639
obviously had a good clean separation uh

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it's down on the ground already