7 votes

Understanding and breaking down pointing requirements

In my professional experience in writing spaceflight software requirements, reading them, implementing them, validating them, and verifying them, these "what does that mean" questions come ...
Erin Anne's user avatar
  • 11.2k
5 votes
Accepted

The Boeing Big Onion - Why not use the atmospheric engines on landing?

Your question is based on a misunderstanding. That proposed vehicle did not utilize air-breathing engines. Technical details can be found in the paper Future Space Transportation Systems Analysis ...
Organic Marble's user avatar
2 votes

Gas generator exhaust for roll control

Yes. From here(Wikipedia) ... while roll control is provided by a Hot gas Reaction Control Motor (HRCM) that ejects hot gases diverted from gas generator of Vikas engine. Unfortunately, the source ...
AJN's user avatar
  • 1,020

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