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SpaceX launch webcast: Orbcomm-2 Mission [video]

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Re: SpaceX launch webcast: Orbcomm-2 Mission [video]

#71
post #27

Earlier quoted context omitted.

Completely amazing! I'm sure I heard a "holy shit" or two there in the audience. :) EDIT: One question for the rocket scientists here: exactly how reusable do they expect these returned first stage rockets to be? What is the process of certifying that a returned rocket is fit to fly, and what components are most likely to need repairing/replacing with each launch?

NARS but probably comparable to shuttle engines and body.

The Shuttle engines operate on hydrogen which burns very cleanly. RP-1 will leave the engine dirty with coking, so they definitely need to clean re-assemble each engine.

On the other hand, the solid boosters of the Space Shuttle were severely damaged by the impact and corrosion of the sea water, after "recovery" they were essentially a source of parts for new boosters.

Overall, I really hope they can improve re-usability above what the Space Shuttle achieved.

Re: SpaceX launch webcast: Orbcomm-2 Mission [video]

#72
post #27

Earlier quoted context omitted.

Completely amazing! I'm sure I heard a "holy shit" or two there in the audience. :) EDIT: One question for the rocket scientists here: exactly how reusable do they expect these returned first stage rockets to be? What is the process of certifying that a returned rocket is fit to fly, and what components are most likely to need repairing/replacing with each launch?

How reusable this first stage is? They'll have to study it meticulously to find out. But what they're aiming for is to be able to just refuel it, mount new payload on top, and relight it in the span of hours.

That's an impressively ambitious goal. Has SpaceX mentioned any willingness to use returned first stage rockets to launch astronauts? That would be the ultimate expression of their confidence in this approach, though understandably it may be a long ways off.

Re: SpaceX launch webcast: Orbcomm-2 Mission [video]

#74

Youtube link for people for whom livestream videos won't work. (I believe the embedded player is livestream). https://www.youtube.com/watch?v=O5bTbVbe4e4

Thanks! Got a link to the replay for those of us tuning in late?

The YouTube link should be a replay now; working for me :)

Re: SpaceX launch webcast: Orbcomm-2 Mission [video]

#76

"Congrats @SpaceX on landing Falcon's suborbital booster stage. Welcome to the club!" Oy... someone needs to tell Bezos it's a whole different scale than what he did. https://twitter.com/JeffBezos/status/679116636310360067

He knows, but the public doesn't and he can say what he wants to twist the perception in his favor and give the impression that the feats were equally challenging.

Not to remove any merit to Blue Origin's achievement, but it's nowhere near what SpaceX just pulled off.

Re: SpaceX launch webcast: Orbcomm-2 Mission [video]

#77

"Congrats @SpaceX on landing Falcon's suborbital booster stage. Welcome to the club!" Oy... someone needs to tell Bezos it's a whole different scale than what he did. https://twitter.com/JeffBezos/status/679116636310360067

I have a vague feeling he's being snide to pay Elon back for those mildly snarky tweets back when Blue Origin landed their rocket.

EDIT:

Musk: "Congrats to Jeff Bezos and the BO team for achieving VTOL on their booster"

Musk: "It is, however, important to clear up the difference between "space" and "orbit", as described well by https://what-if.xkcd.com/58/"

http://money.cnn.com/2015/11/24/news/companies/elon-musk-jef...

EDIT2:

NASAWatch: "Gee Jeff @SpaceX just put a bunch of stuff into orbit - again. Something you have yet to figure out how to do."

https://twitter.com/NASAWatch/status/679126712295120896

I'm not sure if they're all joking around, or are there serious ego issues at play here.

Re: SpaceX launch webcast: Orbcomm-2 Mission [video]

#79

"Congrats @SpaceX on landing Falcon's suborbital booster stage. Welcome to the club!" Oy... someone needs to tell Bezos it's a whole different scale than what he did. https://twitter.com/JeffBezos/status/679116636310360067

and geohot

Re: SpaceX launch webcast: Orbcomm-2 Mission [video]

#80

"Congrats @SpaceX on landing Falcon's suborbital booster stage. Welcome to the club!" Oy... someone needs to tell Bezos it's a whole different scale than what he did. https://twitter.com/JeffBezos/status/679116636310360067

"Welcome to the club"? Wow, that was classless. What Blue Origin did was impressive, but it was utterly trivial compared to what just happened with this flight.

Someone should return the favor whenever he gets into orbit
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