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7 votes
1 answer
2k views

Did Boeing's Starliner do an inflight abort test?

Did the Starliner perform an inflight abort test? I could not find any videos to support the same. Isn't a pad abort and an in flight abort neccesary before sending humans to space? Can the starliner'...
Ashvin's user avatar
  • 2,954
6 votes
0 answers
122 views

Why did early MOL/Gemini aborts involving the separation of the crew capsule from the launcher still call for the crew to eject afterwards?

The Gemini spacecraft, often given as an example of a manned space capsule with no launch escape system, or LES (it used individual ejection seats instead), did, in fact, have an LES, although not one ...
Vikki's user avatar
  • 4,187
5 votes
1 answer
413 views

Why were the canards on the Apollo LES retained even after being proven unnecessary?

In the event of a Mode IB abort during an Apollo launch (an abort initiated between 3 and 30.5 km altitude), a pair of canards would be deployed from the tip of the spacecraft's LES in order to force ...
Vikki's user avatar
  • 4,187
4 votes
2 answers
359 views

Why is ISRO Launch Escape System so SLOW?

I've just watched a video of the recent test and one thing I noticed is that comparing to other LES, like Mercury, Dragon, Soyuz, it looks really sluggy - like it has like 1.3-1.5 TWR. For pad abort, ...
SF.'s user avatar
  • 56k
10 votes
1 answer
793 views

Does Soyuz LES take the service module?

During Jettisonable Emergency Escape Head Section abort mode, the head section of the rocket is separated and pulled away by OGB SAS (the escape tower) to safety away from the malfunctioning lower ...
SF.'s user avatar
  • 56k
16 votes
2 answers
3k views

Could the Apollo lunar ascent stage have separated from the descent stage before touchdown in an emergency?

In case the Apollo Lunar module had approached the landing site at way too high velocity, could the ascent stage have separated and returned to the command module before a crash? Thus performing a ...
LocalFluff's user avatar
16 votes
2 answers
2k views

Has a pad abort ever been done on an actual launch?

In light of the recent SpaceX Dragon test, I was wondering if any pad aborts have ever been performed during an actual launch? To my limited knowledge, none have occurred, despite the Soyuz and Apollo ...
pixels's user avatar
  • 304
21 votes
3 answers
4k views

How hard is it on the crew to go through the 14+ g's of a launchpad abort of the Soyuz, or the Falcon system?

It's only for 5 seconds, but that is an awful lot of force. The Falcon system is similar and presumably also involves very high-g forces. Could injury result from the abort itself in either case?
kim holder's user avatar
  • 21.5k
16 votes
2 answers
3k views

Why is the descent module of the Soyuz in the middle of its stack?

The Soyuz is made up of three major components/modules. The Orbital module on top, basically a sphere, which is basically extra room, and contains the toilet, which allows for some modicum of ...
geoffc's user avatar
  • 80.5k