SpaceX Tuesday...

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CrutyRammers

13,735 posts

198 months

Sunday 28th June 2015
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Was impressed with the broadcast and all the timelines and telemetry...but now it's gone back to a view of the empty pad. Ah well hehe

Eric Mc

122,029 posts

265 months

Sunday 28th June 2015
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Not really a funny moment. This is a massive blow to the whole SpaceX/Falcon operation

CrutyRammers

13,735 posts

198 months

Sunday 28th June 2015
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Oh dear. frown
Wasn't obvious that something had gone wrong to start with, I thought the broadcast feed had just dropped.

MartG

20,677 posts

204 months

Sunday 28th June 2015
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Mojocvh

Original Poster:

16,837 posts

262 months

Sunday 28th June 2015
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Bugger. watched that on livestream was it due to separate around then?

Eric Mc

122,029 posts

265 months

Sunday 28th June 2015
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The feed showed the whole thing.

During the initial phase of the liftoff it did seem to me that one of the motors on the left hand side of the rocket was not burning as well as you normally see. In fact, you could see flames encroaching on the lower part of the booster. The flame eventually died back but you could see evidence of scorching on the rocket. Seconds later it blew up.

Mojocvh

Original Poster:

16,837 posts

262 months

Sunday 28th June 2015
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Was watching it on my mobile didn't catch the malfunction I must admit it didn't seem to go up quickly from the pad but that is pure speculation on my part...

anonymous-user

54 months

Sunday 28th June 2015
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Has all livefeed information stopped?

MartG

20,677 posts

204 months

Sunday 28th June 2015
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https://www.youtube.com/watch?v=UIZJDd6OvEM&fe...

Looks like the failure was at the top of the 1st stage, or maybe the 2nd stage - the engines keep burning until the final breakup

CrutyRammers

13,735 posts

198 months

Sunday 28th June 2015
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No mention of any problems, they specifically said stage 1 was "nominal" (of course). If an engine was down or ascent rate was slower than expected you'd think they'd have noticed it.

Eric Mc

122,029 posts

265 months

Sunday 28th June 2015
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The Falcon doesn't leap off the pad like some rockets. Rockets that are purely liquid fuelled tend to have a slower acceleration off the pad compared to those that use solid fuelled boosters.

I didn't particularly think there was anything wrong with the initial liftoff. You could see some flames "leaking" from around the point where the nozzles are attached to the booster - but that isn't all that unusual. The main wrong thing I spotted was the odd shaped flame pattern from the left set of rocket motors which seemed to be impinging on the outer casing of the booster.

Gandahar

9,600 posts

128 months

Sunday 28th June 2015
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Been watching Goodwood FOS and spent some time on this and after it spent so time getting up to orbit I was very much surprised by the explosion. Normally these things happen a lot closer to the gantry.

Bummer frown Since the US government decided they would slightly wash their hands. Now the private companies are in the public eye, I think they have the balls for it though .... driving

Eric Mc

122,029 posts

265 months

Sunday 28th June 2015
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It certainly does look like an upper section failure - like the shroud gave way or an upper stage rocket ignited prematurely.

The vehicle had already gone through Max Q so the aerodynamic loads on the payload fairing would have been diminishing.

Mojocvh

Original Poster:

16,837 posts

262 months

Sunday 28th June 2015
quotequote all
MartG said:
https://www.youtube.com/watch?v=UIZJDd6OvEM&fe...

Looks like the failure was at the top of the 1st stage, or maybe the 2nd stage - the engines keep burning until the final breakup
Hence my question re stage separation timings..No doubt all become clear soon.

CrutyRammers

13,735 posts

198 months

Sunday 28th June 2015
quotequote all
MartG said:
https://www.youtube.com/watch?v=UIZJDd6OvEM&fe...

Looks like the failure was at the top of the 1st stage, or maybe the 2nd stage - the engines keep burning until the final breakup
Quick work by someone uploading that!
Yeah, looks like the 2nd stage fuel tank ruptures maybe?

MartG

20,677 posts

204 months

Sunday 28th June 2015
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Some are reporting that Range Safety blew it up after it started going off course - if true then the cloud of propellant would be formed after the safety explosives ruptured the tanks

Eric Mc

122,029 posts

265 months

Sunday 28th June 2015
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Aha - so asymmetric thrust from a malfunctioning 1st stage rocket perhaps? Maybe I wasn't seeing things.

Gandahar

9,600 posts

128 months

Sunday 28th June 2015
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MartG said:
Some are reporting that Range Safety blew it up after it started going off course - if true then the cloud of propellant would be formed after the safety explosives ruptured the tanks
They do that when things go wrong, this looked like things went wrong and then.

Its an interesting failure from our viewpoint as onlookers.


Andy

MartG

20,677 posts

204 months

Sunday 28th June 2015
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Images being posted of a possible 1st stage engine anomaly




Eric Mc

122,029 posts

265 months

Sunday 28th June 2015
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That's exactly what I was referring to.
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