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| Destructor1701 | Date: Tuesday, 22.04.2014, 14:00 | Message # 196 |
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| Quote HarbingerDawn (  ) Amusing old concept video for a Skylon-enabled Mars mission
Somehow, I missed that one until just now.
The music is bloody awful!
What aspects most amuse you? The fanciful drydocks? The mission overkill with three bases? The obviously-not-Skylon-launched descent capsules?
For some reason I don't expect Skylon to actually come to fruition, but I would love if it did! The tech and aesthetics are awesome - and the pre-cooler tech shows promise. It's the funding issue I can't see being overcome.
I know I grimly joked about Zuckerberg buying SpaceX in the wake of the Oculus buyout, but if there's one space project that I'd like to see given an injection of dem Facebook moneys, it's Skylon.
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| HarbingerDawn | Date: Thursday, 24.04.2014, 02:13 | Message # 197 |
 Cosmic Curator
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| Quote Destructor1701 ( ) What aspects most amuse you?
The absurdity I suppose, and to a smaller extent the mediocrity. The music was absolutely horrible, the animation was relatively bad, and some of the mission design elements were absurd. Why have the huge transfer ships dock in Mars orbit? Why not just have the lander capsule undock from its original ship and dock with the crew ship? It's much easier that way. And the most hilariously absurd part was having the crew return capsules aerocapture back at Earth, only to have them get picked up by Skylons. It would be a really complicated move to do that, since you'd have to launch, rendezvous, and dock all in a single orbit, since the perigee of the capsules would be within the atmosphere, and it's just plain unnecessary. They can just return to Earth in those capsules. Why all the astronomical gymnastics and the extra Skylon flights? Even if the cost of a Skylon flight can be reduced to $5 million per launch, that's still a totally unnecessary expenditure of $30 million. I think that part of the mission got to me the most.
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| HarbingerDawn | Date: Friday, 02.05.2014, 06:43 | Message # 198 |
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| SpaceX's Falcon 9-R development vehicle appears to have flown again, according to this blog post. No details will likely be available until SpaceX talks about it.
Update: Video released by Elon. This flight went to an altitude of 1000 meters and lasted over two minutes!
According to SpaceX, early flights will have the legs start deployed, as shown here, but will later start with them stowed, and deploy shortly before landing.
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Edited by HarbingerDawn - Friday, 02.05.2014, 06:45 |
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| SpaceEngineer | Date: Friday, 02.05.2014, 11:58 | Message # 199 |
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| Wow! Never saw rocket flying in backward direction and landing))
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| Aerospacefag | Date: Thursday, 22.05.2014, 15:11 | Message # 200 |
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| Quote Destructor1701 ( ) SpaceX are seeking EPA and FAA clearance to begin testing a reusable propulsive-landing dragon capsule. It'll be conducting grasshopper-style test flights at McGregor.
That's good news. There's already a propulsion system on Soyuz landing capsule, so if you just amplify them by factor of 50, it will be a good landing system. Although some safety questions rise.
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| HarbingerDawn | Date: Friday, 23.05.2014, 00:45 | Message # 201 |
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| Quote Aerospacefag ( ) There's already a propulsion system on Soyuz landing capsule, so if you just amplify them by factor of 50, it will be a good landing system.
Not really, the Soyuz landing propulsion is a solid rocket, which is not useful for controlled propulsive landings. So you need a fundamentally different type of propulsion system, one which is easily controllable and deeply throttleable, and which preferably uses the same onboard propellants as existing thrusters. So the obvious answer is hypergolic-fueled engines, which is what they're using. They've actually been testing that exact engine, the SuperDraco, for a few years now. They have been talking about propulsive landings for Dragon for a long time.
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| Aerospacefag | Date: Friday, 23.05.2014, 19:03 | Message # 202 |
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| HarbingerDawn, ok, then, probably they're talking about this type of system:
http://news.bbc.co.uk/2/hi/science/nature/8024590.stm
There was the time when Korolyov suggested using rocket engines for landing and a new perspective space ship, which should have used only rocked engines. It is about that time he said: "How long we're going to fly on the rags?", meaning that parachutes should be replaced with something more controllable. Unfortunately, after his death, not much was done in regards to Zarya project.
Edited by Aerospacefag - Friday, 23.05.2014, 19:03 |
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| HarbingerDawn | Date: Saturday, 24.05.2014, 00:09 | Message # 203 |
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| Quote Aerospacefag ( ) ok, then, probably they're talking about this type of system:
Yes, exactly. They have already shown concept videos of how they plan to implement this, the first one was in 2011, and the following vid from 2012 is the most recent:
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| SpaceEngineer | Date: Saturday, 24.05.2014, 22:08 | Message # 204 |
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| Are they not using parachutes at all?
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| HarbingerDawn | Date: Sunday, 25.05.2014, 00:34 | Message # 205 |
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| Quote SpaceEngineer ( ) Are they not using parachutes at all?
It will have parachutes, but I think their plan is to not use them except in emergencies. At least eventually. But during some of the tests, they will be using parachutes and rockets together.
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| HarbingerDawn | Date: Wednesday, 28.05.2014, 05:51 | Message # 206 |
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| The Dragon V2 unveiling is now less than 48 hours away. The event is scheduled to begin at 02:00 UTC and will be webcast here.
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| HarbingerDawn | Date: Wednesday, 28.05.2014, 09:12 | Message # 207 |
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| SpaceX just released a new video of SuperDraco thruster testing, no doubt to build hype in the days leading up to the Dragon v2 unveil. Deep and rapid throttling is evident.
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| Spyro | Date: Thursday, 29.05.2014, 01:10 | Message # 208 |
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| And did anyone see the new SuperDraco engine test? Man, that was some fast throttling!
I'm back, but am I here to stay? Hopefully!
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| HarbingerDawn | Date: Thursday, 29.05.2014, 01:36 | Message # 209 |
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| Spyro, that post belongs here (and as you can also see here, the video of that test has been posted already).
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| HarbingerDawn | Date: Thursday, 29.05.2014, 04:17 | Message # 210 |
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| Press release about the SuperDraco qualification testing.
http://www.spacex.com/press....hruster
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