SpaceX And/Or Rocketry In General

AgentB
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Blue Origin today

Mike Hewson
Mike Hewson
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Yup I think they have some of

Yup I think they have some of the bottom bits. Oh well. Next time ....

Cheers, Mike.

I have made this letter longer than usual because I lack the time to make it shorter ...

... and my other CPU is a Ryzen 5950X :-) Blaise Pascal

Anonymous

RE: Blue Origin

That is some amazing video. Max descent ~2500 mph - becomes noticeable when passing throught the thin cloud layer. And then stop, hover, land. retract hydraulic (?) upper brakes. similar engineering, different engine(s) than SpaceX. Very cool stuff going on.

AgentB
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RE: RE: Well, it was

Quote:
Quote:
Well, it was frustrating to me to NOT hear English being spoken for the launch of Arianespace VA230...

I guess you are talking about the recorded stream, which has the English and French audio superimposed, on both the English and French streams. I expect they'll fix that.

I had a quick listen on youtube starting at 10 minutes they appear to have lost the language overlay. Launch starts here

AgentB
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Mike Hewson wrote:Yup I think

Mike Hewson wrote:
Yup I think they have some of the bottom bits.

And the rest of the bits are on the bottom! One of the landing costs i guess they have to factor is "clean-up costs".

On land failures i expect would be considerably more expensive in event of a RUD.

Edit:

Elon Musk tweet wrote:
Turns out the landing was not as fast we thought, but still hard enough to destroy the primary airframe and accordion the engines


so maybe there is a lot of the rocket under the tarp!

Mike Hewson
Mike Hewson
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RE: so maybe there is a lot

Quote:
so maybe there is a lot of the rocket under the tarp!


The Veteran's space mob have footage of what's under the tarp that blew off. I can't see much above the engine assembly ( octaweb ) and some leggy pieces. There might be some barrel there. If so they have recovered some pretty expensive niobium-titanium alloy !

Cheers, Mike.

( edit ) On the upside the barge looks OK.

I have made this letter longer than usual because I lack the time to make it shorter ...

... and my other CPU is a Ryzen 5950X :-) Blaise Pascal

TimeLord04
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RE: RE: RE: Well, it

Quote:
Quote:
Quote:
Well, it was frustrating to me to NOT hear English being spoken for the launch of Arianespace VA230...

I guess you are talking about the recorded stream, which has the English and French audio superimposed, on both the English and French streams. I expect they'll fix that.

I had a quick listen on youtube starting at 10 minutes they appear to have lost the language overlay. Launch starts here


Thank you for the YouTube link. The "Relive this launch" at the original link had a French woman drowning out the English speaking gentleman. Made things REALLY hard to follow. FINALLY got to see and understand the entire launch through the YouTube link. :-)

TL

TimeLord04
Have TARDIS, will travel...
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Mike Hewson
Mike Hewson
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FWIW here is a good shot of

FWIW here is a good shot of one of the four water thrusters that act to steady the barge in a precise position :

Evidently that can rotate down to be underwater and also swivel 360 around it's long axis too. I mean there's no point in the booster descending to an absolute position if the barge isn't there to be underneath it at the time ! :-)

NB We saw with the land return that the booster hit the centre of the marked plot bang on. So bear in mind at sea that any off centre landing can be due to barge positioning ( good to within one meter ). The barge and booster don't communicate for this, each obeys a preset.

Cheers, Mike.

I have made this letter longer than usual because I lack the time to make it shorter ...

... and my other CPU is a Ryzen 5950X :-) Blaise Pascal

Gary Charpentier
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RE: And the rest of the

Quote:

And the rest of the bits are on the bottom! One of the landing costs i guess they have to factor is "clean-up costs".

On land failures i expect would be considerably more expensive in event of a RUD.

Well, assuming that they aren't forced to dive down and pick up all the toxic waste they just dumped on the bottom of the ocean.

Anonymous

RE: FWIW here is a good

Quote:

FWIW here is a good shot of one of the four water thrusters that act to steady the barge in a precise position :

Evidently that can rotate down to be underwater and also swivel 360 around it's long axis too. I mean there's no point in the booster descending to an absolute position if the barge isn't there to be underneath it at the time ! :-)

Cheers, Mike.

Hydraulics for steering and electrically operated prop? Hmm look like the prop is spinning in this out of the water picture.

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