sh1pman
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Everything posted by sh1pman
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Still more useful than SLS
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- 642 replies
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- 11
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- space flight
- private
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Yep. With SpaceX and BO on the market, it's go big or go home for everyone else.
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Not sure why would they want to. Not the best buy in the store, as I see it.
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"Vulcan" with Be-4 on the first stage and Be-3Us on ACES can be pretty capable, too. Basically a smaller NG with up to six side boosters.
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This new space race is really exciting. It feels so sudden - years and decades passing without any major changes in space launch industry, and suddenly now there are multiple rocket companies building almost sci-fi rockets and spaceships with unprecedented capabilities. And they’re all supposed to hit the market in the next few years. What a time to be alive.
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New Armstrong: Sup!
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What if there's was no reaction mass, and the acceleration was produced by some other means? Like a solar sail, or laser-based system like in Breakthrough Starshot project?
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So if your orbit is prograde, then you're outside of its event horizon, but if's retrograde, then you're inside the black hole? Mind blown.
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Ok, makes sense. By the same logic, should rotating black holes appear more massive than they are?
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Yeah, it's not even remotely realistic, but my question is more about "does your kinetic energy affect the curvature of spacetime around you?".
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This is interesting. If E=mc^2, can you make a black hole out of your space ship by just accelerating it a lot? At some point its kinetic energy will become so high that its equivalent total energy (relativistic mass) gets high enough to form an event horizon around it.
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Blue Origin's smallest pickup truck: (sorry)
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Called it!
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totm dec 2019 Russian Launch and Mission Thread
sh1pman replied to tater's topic in Science & Spaceflight
Well, yeah, hypergolics are toxic, but there’s just no better way to keep the rocket always ready for launch. SRBs are less efficient, and I’m not sure if they’re safer than hypergols. Maybe some kind of hybrid rocket booster could combine safety, propellant stability and efficiency, I dunno. -
Then DSG is Darth Sidious’ Greed.
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SpaceX could do this if NASA pays them to, regardless of BFR. Except NASA won’t, because it’ll make their SLS and LOP-G plans look totally stupid.
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I particularly like the last paragraph where he roasts SLS.
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Any news about Boaty McBoatface?
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It's because they haven't finished rendering the rest of the video to hide the fact that the Earth is flat. So they just cut off the stream.
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Iridium-5 launch livestream
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Phones and their autocorrects...
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Was talking about the GTO performance numbers, not price numbers @sevenperforce So, what GTO performance can Block V FH have? 10t maybe? And they’ll still need to produce Merlin engines and upper stages, so they can’t completely shut down the F9 production line.
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You think the numbers on SpaceX’s own web page are wrong?
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So, what’s our best guess about the F9 expendable price? Musk said in his tweet that it’s a bit lower than 95M. That means F9 expendable and FH recoverable prices (for a customer) are very close, maybe even 90M both. And since F9 expendable can put heavier payload to GTO, there’s really no reason to switch to FH for GTO payloads lighter than 8.3t and LEO payloads lighter than 22.8t.
