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SpaceX – Launch Vehicle Failure

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191–200 of 347 posts

Re: SpaceX – Launch Vehicle Failure

#191
post #110

So, the advantage of a weekend launch is that I could show my kids (boys 7 & 4), right? Facepalm . In the last few minutes, over a dozen K-Nex rockets have lifted off and exploded shortly after takeoff. Sigh. Not the best introduction to the second Space Age for them.... ah well, we'll try again later. At least nobody was aboard.

Play Kerbal Space Program with them, nothing will teach them about failure to launch more than that :)

Re: SpaceX – Launch Vehicle Failure

#192

Can anyone here with a little more knowledge answer the following please? Who pays for the expense of these types of failures? Does SpaceX have some sort of 3rd party insurance from a private insurer or are they insured by NASA or another branch of the US gov? How much is the equipment that got destroyed worth? If this happens multiple times in a short space of time as it seems to have recently does the cost of insur…

The rockets are pre-paid. The purchaser gets insurance for the payload to cover their loss.

Re: SpaceX – Launch Vehicle Failure

#193

Earlier quoted context omitted.

Well, it is rocket science, and even though SpaceX has a higher reliability target, accidents do happen

Space is certainly hard, even for those that people might assume are good at it (NASA, Roscosmos, etc.). This failure is a likely setback for man-rating the falcon in the future.

Doubt it. If anything this is a PERFECT illustration of how well SpaceX is preparing. They know things like this can happen. Notice there was an extended period (multiple seconds) of the rocket smoking before it exploded. Everyone, automated systems included, KNEW something was wrong at that point, before it exploded. At which point dragon would have used its abort system to blast away from the first stage, and made a safe landing.

There is almost no question that had there been people aboard this particular launch, and they were using the newer Dragon that has that capability, no loss of life would have occurred. Unless (of course) there were OTHER malfunctions, too. Never know. Space is indeed hard.

Re: SpaceX – Launch Vehicle Failure

#194
post #32

Yep... just saw... hate the silence on the stream Update: Looks like the explosion was triggered by Range Control in response to non nominal flight

Damn, that sucks, but not nearly as much as if it was a random explosion. I believe in this scenario, astronauts would be able to do an emergency separation, getting far away from the lower stage before it was detonated. My biggest worry from this is that human flights will be delayed (justly or unjustly.)

It appears from the video that the Dragon capsule came off intact. Crewed abort probably would've been just fine, which is indeed a relief. After all, that's the point of it.

Re: SpaceX – Launch Vehicle Failure

#195

So in a case like this, would it be possible to have the pad abort system kick in? It could potentially pull the cargo module away and make an attempt to parachute it back for recovery? I doubt it could overcome the speed of the rocket but it might have a chance to separate it from the debris cloud?

Cargo dragon doesn't have a pad abort system. Dragon 2 would be able to escape just fine, though. Cargo dragon could _technically_ survive if didn't get blown up too much.

> Cargo dragon could _technically_ survive if didn't get blown up too much.

It appears to be intact after the explosion. You can see it detach and drift back in the video at about 2:35. https://twitter.com/nextlaunch/status/615191061636481024

Unfortunately, parachutes on the cargo version aren't armed during launch (would be bad if they accidentally deployed) so it'll have smashed into the ocean and broken up.

Re: SpaceX – Launch Vehicle Failure

#196

Earlier quoted context omitted.

Cargo dragon doesn't have a pad abort system. Dragon 2 would be able to escape just fine, though. Cargo dragon could _technically_ survive if didn't get blown up too much.

From the PR (and early test) angle: Is it possible to add the escape mechanism the cargo version? Perhaps this has no economical sense, but after the explosion it's better to write: "The main rocket suffered a RUD, the mission is canceled, but Buster would have survived."

The Launch Abort System (LAS) is heavy, and since it requires Dragon V2, which includes more systems only required for human missions, the overall system mass is even higher than "just" the LAS. Heavy is extremely expensive, ergo it does not make sense economically to equip the cargo version with the LAS. Simply said, the chance of failure multiplied with the cost of the cargo is less than the extra cost an LAS on every mission would mean.

Re: SpaceX – Launch Vehicle Failure

#199
post #52

Earlier quoted context omitted.

Damn now I feel bad for saying that.

Yeah, we all knew the return and landing part is new and uncertain, but I thought they would at least get to try.

Indeed. I was looking forward to the landing. I never thought it wouldn't make it to start with. A sad day but you can always learn things from failures so not a complete waste of effort.

Re: SpaceX – Launch Vehicle Failure

#200
Looks like Southwest Research Institute's meteor shower camera will have been lost again. They're not having much luck :(

> The device aboard [today's launch] was actually a backup of the original meteor camera that blew up along with Orbital Sciences' Antares rocket in 2014.

http://www.engadget.com/2015/06/27/meteor-camera-iss/

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