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Old 30-October-2009, 06:50 PM
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Default Ares I-X Manager Addresses Booster Damage, Stage Tumbling and Thrust Oscillation

The damage seen on the Ares I-X booster occurred as a result of parachute failure, which caused the rocket to impact the water harder than expected. Ares I-X manager Bob Ess briefed reporters today on the preliminary data from Wednesday's test flight of NASA new rocket, and said the parachute failure was not a significant [...]

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Old 30-October-2009, 07:18 PM
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How is having the J-2X engine helpful in regards to stage 2 tumbling? The tumbling happened almost immediately after separation. You have to have some time between separation and stage 2 ignition, right? Something still doesn't seem right about this particular part of the flight, but I am sure it will all get sorted out.

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Old 06-November-2009, 11:15 PM
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Some more discussion at www.nasaspaceflight.com

I expect the Ares bashers to be in force.
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Old 07-November-2009, 01:49 PM
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Quote:
Originally Posted by Christopher Ferro View Post
How is having the J-2X engine helpful in regards to stage 2 tumbling? The tumbling happened almost immediately after separation. You have to have some time between separation and stage 2 ignition, right? Something still doesn't seem right about this particular part of the flight, but I am sure it will all get sorted out.

CJSF
Different center of gravity making it less unstable.
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Old 07-November-2009, 02:36 PM
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Oh. I thought they also simulated the weight distribution in the dummy stage. I thought they'd go for bettery fidelity with the proposed "real" upper stage.

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