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Old 09-15-2015, 05:29 PM   #31
boogabooga
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So yeah, this happened:
http://finance.yahoo.com/news/amazon...144929128.html

Someone needs to tell Bezos that the eccentric billionaire that starts a rocket company gig has already been taken.
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Old 09-15-2015, 05:49 PM   #32
Urwumpe
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Quote:
Originally Posted by boogabooga View Post
 So yeah, this happened:
http://finance.yahoo.com/news/amazon...144929128.html

Someone needs to tell Bezos that the eccentric billionaire that starts a rocket company gig has already been taken.
There have always been two... VHS and Betamax....
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Old 09-15-2015, 05:50 PM   #33
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The more the merrier.

---------- Post added at 05:50 PM ---------- Previous post was at 05:49 PM ----------

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Originally Posted by Urwumpe View Post
 There have always been two... VHS and Betamax....
VHS won, but now they're both gone.
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Old 09-15-2015, 05:51 PM   #34
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Amazon prime one-day delivery isn't quite fast enough!
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Old 09-15-2015, 08:47 PM   #35
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This is genuinely exciting news. More commercial LV competition is always welcome plus we get to see LC-36 back in action! I wonder what pad they'll choose for landings.
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Old 11-24-2015, 01:25 PM   #36
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New Shepard: Bezos claims success on second spaceship flight
http://www.bbc.co.uk/news/science-environment-34909713

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The Amazon.com entrepreneur Jeff Bezos has claimed success on the second flight of his New Shepard spaceship.

Intended eventually to carry people just above the atmosphere, the re-usable vehicle launched from west Texas on Monday with no-one aboard.
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Old 11-24-2015, 01:46 PM   #37
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Seems to have a better control system than their competitors...
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Old 11-24-2015, 01:55 PM   #38
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Remarkable control, makes my self-balancing robot look pathetic, mind you it is pathetic.
Good luck to them!

N.
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Old 11-24-2015, 02:04 PM   #39
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Originally Posted by GLS View Post
 Historic Rocket Landing - YouTube
Seems to have a better control system than their competitors...
At least, it is a lot more conservative in design than the SpaceX version. But then, it is also a few Mach numbers slower.
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Old 11-24-2015, 03:05 PM   #40
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The booster stage landed in one piece, but its lower end certainly needs a fresh coat of paint
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Old 11-24-2015, 04:04 PM   #41
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That's a nice landing, but it's significantly easier than landing the SpaceX F9 first stage. For one, this isn't hauling the entire weight of the second stage and payload to space. Only itself and the capsule. So the empty weight is more comparable to the full weight. Makes things A LOT easier.


Quote:
Originally Posted by Notebook
 Remarkable control, makes my self-balancing robot look pathetic, mind you it is pathetic.
Well, the larger things get, the slower they oscillate. There's a reason you can balance a broom on your finger, but have difficulty doing the same with a pencil. Your robot suffers from the same problem.
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Old 11-24-2015, 05:58 PM   #42
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Silly question - but doesn't the SpaceX stage fall from approximately the same height as this one? This New Shepard configuration is obviously a lot smaller and isn't carrying an upper stage capable of reaching orbital velocity, but isn't its overall job the same as for SpaceX - to get above the atmosphere and then back down again?
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Old 11-24-2015, 06:12 PM   #43
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Originally Posted by Ravenous View Post
 Silly question - but doesn't the SpaceX stage fall from approximately the same height as this one? This New Shepard configuration is obviously a lot smaller and isn't carrying an upper stage capable of reaching orbital velocity, but isn't its overall job the same as for SpaceX - to get above the atmosphere and then back down again?

I'm not sure how 'accurate' that video/animation was.

According to the video, New Shepard more or less went straight up, reach apogee, and then fell back to earth - in the general vicinity of the launch pad.

Falcon9R would be putting a lot of distance between itself and the pad/launch area. I think this makes the entire fly-back and final accuracy determination much more difficult.

Not saying it isn't impressive. I couldn't build a rocket to begin with, so who am I to judge? It's still cool.
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Old 11-24-2015, 06:44 PM   #44
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Quote:
Originally Posted by Ravenous View Post
 Silly question - but doesn't the SpaceX stage fall from approximately the same height as this one? This New Shepard configuration is obviously a lot smaller and isn't carrying an upper stage capable of reaching orbital velocity, but isn't its overall job the same as for SpaceX - to get above the atmosphere and then back down again?
The SpaceX F9 stage might fall from about the same height, but it's a bit more tricky than that. It's also moving sideways at great speed. That speed first needs to be shed.

The SpaceX F9 stage also has the disadvantage of having much more thrust than it needs to, so it has to come down very quickly. That's a problem for the guidance - it has less time to determine the flight path of the rocket. Every guidance system lags behind the actual vehicle by a bit, so the prediction of where the vehicle is has to be better for SpaceX.

The actual touchdown is also a bit trickier. The rocket needs to throttle so that the velocity reaches 0 right at touchdown.


Let's not diminish the achievement of Blue Origin, because it's impressive. But it's not in the same class as SpaceX.
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Old 11-24-2015, 06:53 PM   #45
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Blue Origin is using New Shepard as a way to gain experience with higher, faster, and more powerful vehicles before moving on to something similar to the Falcon 9R. They realize that this is tricky stuff, so they're working on it in steps. SpaceX, on the other hand, basically took a swan dive into the deep end, and it shows.
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