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Category Archives: Depot
SpaceX Did It – What It Should Do Next
Congratulations to SpaceX who landed the first stage intact. Assuming cost is roughly related to stage mass and engine count, reusing the first stage saves 9/10 of the whole rocket cost. If they can run the stage ten times, that … Continue reading
Posted in Architecture, Depot, Design, engines, industry, Launchers, Lunar, RLV:s, Spacecraft, SpaceX, Transportation
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Gravity Assist Competition
Or The Space Game, by ESA. This is a nice javascript webpage where a probe is shot from Earth to Jupiter with gravity assists at Venus (twice), Earth and Mars. You try to achieve the lowest propulsive delta vee. You … Continue reading
Posted in Architecture, Astronomy, Depot, Design, Energy, ESA, Homebuilt, industry, Launchers, Lunar, Models, Motivation, Science Links, Spacecraft
Tagged Delta vee, ESA, Gravity assist, Hohmann, Space Game, Thespacegame, Trajectory
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Humans Fast, Machines Slow
Detach a small capsule with the humans that goes directly to the surface (with only days of life support) and leave the untended craft to do multi-pass aerobraking Continue reading
Posted in Architecture, Colonization, Depot, engines, ESA, Global, industry, ISRU, JAXA, Lunar, Models, Motivation, NASA, RLV:s, Science Links, Spacecraft, Transportation
Tagged Aerobraking, Aerocapture, EML, High ISP, isp, Lagrange, LEO, Mars, NASA, SEP, Solar Electric
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A Proposed US On-Orbit Propellant Transfer System
For the ISS. The shuttle would transfer unused hypergolics to the ISS propulsion module. ATV as well. http://en.wikipedia.org/wiki/ISS_Propulsion_Module It was canceled and instead Progress and ATV are used directly for most boosting. Nevertheless the technology could be useful in developing … Continue reading
Posted in Architecture, Depot, industry, Lunar, NASA, Spacecraft
Tagged hypergolic, ISS, propellant depot, propulsion module, storable
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Minus 2D Boom Rendezvous
I always had a different idea compared to the one Jon and Kirk posted, (Kirk Sorensen is now a contributor at Jon Goff’s place, I’m afraid having such top men in the same place might cause a awesomity criticality event). … Continue reading
Posted in Architecture, Depot, industry, RLV:s, Spacecraft, Uncategorized
Tagged ATV, Boom, Capture, Centaur, HTV, Rendezvous, RLV
2 Comments
Jeff Greason
The Man. On Space Review. [EDIT: About a month ago, but I only just read it.] This is just excellent. So many things I agree with, that go against the stupid myths of spaceflight and space policy. If you read … Continue reading
Posted in Architecture, Colonization, Depot, ESA, industry, JAXA, Motivation, NASA, RLV:s, Spacecraft
Tagged Augustine, Depot, Greason, NASA
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Reality and Future
Jeff Greason is a rational person who simply gets it. It is mind boggling how completely opposite from someone like Mike Griffin he is. See Jeff’s presentation with the Augustine Panel. Paraphrasing, “we could go to Mars with Ares V … Continue reading
Posted in Architecture, Demotivation, Depot, ESA, Global, industry, ISRU, Lunar, Motivation, NASA, RLV:s, Spacecraft
Tagged Augustine, Depot, HSF, Jeff Greason, NASA
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My Letter to the Augustine Panel
In the previous post. – I’ve been very tired and felt completely unable to have any effect on my life or on any other things for the last five days or so. This doesn’t mean that I’ve felt lazy – … Continue reading