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(Discover)   SpaceX Falcon 9 rocket lost an engine on its way to orbit, still managed to get Dragon capsule on its way to ISS   (blogs.discovermagazine.com) divider line 8
    More: Cool, International Space Station, Dragon capsules, motive powers, space rendezvous, telemetry, orbits, space capsules, hurling  
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5237 clicks; posted to Geek » on 08 Oct 2012 at 3:26 PM (1 year ago)   |  Favorite    |   share:  Share on Twitter share via Email Share on Facebook   more»



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2012-10-08 12:57:59 PM
2 votes:

Donnchadha: dj_spanmaster: Elasticity and flexibility of design equals waste.

Which, in this case, would have wasted the payload.


Just pointing out, efficiency is not always best.
2012-10-08 10:52:46 PM
1 votes:
The Merlin-1c engines on the Falcon 9 use regenerative cooling for the nozzles. When the engine was shut off, there would still be a bit of cooled fuel in the pipes in the cooling layer. The sudden loss of the heat from the fuel being burnt would cause the outermost layer of brazed alloy to contract suddenly and become brittle, and fall off. No explosion, no "engine disintegration". Small flameout from the fuel being shut off, and the thin innermost layer of the cooling sheath falling off.
2012-10-08 06:23:19 PM
1 votes:
Programmer.

Not a physicist.

Trying to imagine programming to the requirements of PHYSICS. Mind asplode.

Trying to imagine programming to the requirements of PHYSICS, and getting it right. *meltdown*

I salute that programmer, and all who do such tasks. I am a mote in your shadow.
2012-10-08 05:49:15 PM
1 votes:
Lost an engine and kept on kicking...nice. If it had been NASA, it would have shat itself and exploded on launch and resulted in a 5 year program grounding while they investigated the manufacturing of the scapegoat torx screw.
2012-10-08 04:23:42 PM
1 votes:
I am pleased they made it to orbit, and that the design is meant to recover from failures.

I still wouldn't paint a picture of an engine falling apart as a good day, yeah, did what it was supposed to do.

It wasn't as bad as it might have been, but it wasn't good either.

How does this loss effect the man rating of this engine? Was this engine and vehicle supposed to be man rated?
2012-10-08 04:01:19 PM
1 votes:

dj_spanmaster: Elasticity and flexibility of design equals waste.


No, an efficient and redundant design compensates for problems and accomplishes the mission. Since there are no spare engines being hauled along, no extra fuel required, etc., there is no waste involved.
2012-10-08 03:42:07 PM
1 votes:
The old saying: Why have one when you can have two for twice the price?

Not always as dumb as it sounds.
2012-10-08 03:33:12 PM
1 votes:
I'm glad it made it.

/the ISS is a achievement for humans
 
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