SpaceX Testing Passenger Escape System Tomorrow

An anonymous reader writes: On Wednesday, SpaceX will be performing the first test of a prototype for its passenger capsule escape system. Most rockets have a launch abort system that will save the lives of its crew within the first few minutes of launch, but not beyond a relatively low altitude. SpaceX is designing the new system to be able to return astronauts safely whether they're close to the ground or near orbit.

The Dragon capsule will fire eight SuperDraco thrusters, capable of producing 120,000 lbs of axial thrust between them in under a second. With that amount of thrust, the capsule can get half a kilometer away from a failing rocket in under 5 seconds. SpaceX will have 270 sensors aboard the prototype, including a crash test dummy. The main mission goals include: determining the best sequencing for the launch abort timeline, getting all eight thrusters to fire in unison, and seeing how an aborted launch affects both the inside of the capsule and the area around it. The test is planned to start at 7 a.m. EDT (11:00 UTC), but they have a 7.5-hour window if there are minor delays.

Comments

Last time one was used?

[Dereck1701]

I suppose its not a bad thing to have just in case but I don't see the reasoning behind the fixation on it as a design requirement and their ranting about its "importance" in press releases. In almost 300 manned space launches a Launch Escape system has only been of verifiable use in a single incident(Soyuz T-10-1).

Re:Last time one was used?

[bledri]

<quote><p>I suppose its not a bad thing to have just in case but I don't see the reasoning behind the fixation on it as a design requirement and their ranting about its "importance" in press releases. In almost 300 manned space launches a Launch Escape system has only been of verifiable use in a single incident(Soyuz T-10-1).</p></quote> Marketing. This is a joyride for the rich - they want some danger but they also want to feel that there's a safety mechanism in case of failure. I imagine it'll help sell a lot of tickets, no matter how little use it gets or whether it prevents any deaths.

You really should learn about a topic before posting. The Dragon 2 is being developed as part of NASA's commercial crew program. Launch Abort is a NASA requirement. NASA will be using Dragon to transport astronauts to and from the ISS.

Shuttle

[p51d007]

First couple shuttle launches had ejection seats, but were taken out prior to operational use. The way that stupid shuttle was designed, there would never had been a practical way to escape the shuttle, unless they went with a "pod" to get them out, which would have weighted too much. The capsule concept, in use from the 50's, is a more practical way of escaping, but, NASA (and by the way of a proxy, the congress), went with that stupid shuttle, then didn't launch it the way it was intended (piggyback on a giant plane). They went with those stupid boosters, problematic at best. NASA, congress, and of course the CONTRACTORS, wanted the shuttle because they sold it as a "flying truck". So, instead of furthering our exploration of space, we just flew up and down in low orbit, then, they came up with the space station concept to give the shuttle something to do. It's been a great big money spending party. Put space exploration into private hands, which will find a profitable way to do it, and space exploration will, to coin a phrase, take off.