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with a loud roar and a mighty column of

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flame nasa and atk successfully

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completed a two-minute full-scale test

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of the largest and most powerful solid

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rocket motor designed for flight on

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august 31st the stationary firing of the

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five-segment solid motor known as the

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development motor 2 took place at atk's

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test facility in promontory utah and all

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test objectives were met

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prior to testing the motor was cooled to

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40 degrees fahrenheit for this to verify

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the performance of new materials

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after more testing the first stage solid

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rocket motor will be certified to fly at

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temperature ranges between 40 to 90

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degrees fahrenheit

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dm2 is the most heavily instrumented

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solid rocket motor in nasa history with

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53 test objectives measured through more

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than 760 instruments

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the motor was built as an element of

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nasa's constellation program and is

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potentially transferable to future heavy

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test

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t-minus 70 seconds

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commit the motor

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t-minus two minutes

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three

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two

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one

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so

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activate head and co2 but in co2 pin

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polar activated activate quench tool

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command forward and aft co2 quench

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there's nothing better for an engineer

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than to see an amazing test like this

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it's the culmination of a lot of good

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design work a lot of dedication

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by by an excellent team

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this is our second development test of

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the five segment uh

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motor

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we did get a chance here in the last

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hour to look at the preliminary data and

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it looks absolutely excellent

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my hat's off also to the atk nasa team

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that has pulled this off and put it

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together because

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they've leveraged a lot of great

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experience from the past they've

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maintained great discipline and

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engineering approaches made great

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decisions along the way and and the

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results that you see today don't come

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overnight it doesn't come from

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doing it the first time around so the

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critical skills in the workforce are