tag:blogger.com,1999:blog-28823501.post7159608971978939403..comments2023-06-19T23:26:32.126+10:00Comments on QuantumG's Blog: We've Already Got Propellant DepotsQuantumGhttp://www.blogger.com/profile/17336493213317053535noreply@blogger.comBlogger5125tag:blogger.com,1999:blog-28823501.post-80985992874200240872011-08-08T20:43:42.613+10:002011-08-08T20:43:42.613+10:00Fantastic post. You hit this one out the park Tren...Fantastic post. You hit this one out the park Trent. We could be doing shakedown cruises with a general purpose ship (capable of taking a dozen to mars or elsewhere) as soon as the $300m check clears. Put a dozen such ships in orbit and we have our depot relay. After positioning we could use Dragons for crew rotation between the ships.<br /><br />The pieces are falling together. No magic bullets required. Put a dozen ships 'halfway to anywhere' and work out the radiation issues live.<br /><br />How long before the Bigelow 7 becomes a land rush?ken_anthonyhttps://www.blogger.com/profile/07612961297952294600noreply@blogger.comtag:blogger.com,1999:blog-28823501.post-39397465643145232512011-08-07T05:25:33.818+10:002011-08-07T05:25:33.818+10:00And beyond, where the van Allens don't matter,...And beyond, where the van Allens don't matter, say to LLO, GEO, a Mars Lagrange point and LMO. That way you could do propulsive LMO insertion and descent and TEI from the Mars Lagrange point.Martijn Meijeringhttps://www.blogger.com/profile/12081666469671666008noreply@blogger.comtag:blogger.com,1999:blog-28823501.post-56627425210185241892011-08-07T05:04:47.806+10:002011-08-07T05:04:47.806+10:00Yeah.. also We've Already God Electric Propuls...Yeah.. also We've Already God Electric Propulsion, which is a great way to get storable propellant out to EML1/2.QuantumGhttps://www.blogger.com/profile/17336493213317053535noreply@blogger.comtag:blogger.com,1999:blog-28823501.post-15631640166270787352011-08-07T00:53:37.132+10:002011-08-07T00:53:37.132+10:00Aargh, I meant "somehow", not "some...Aargh, I meant "somehow", not "someone".Martijn Meijeringhttps://www.blogger.com/profile/12081666469671666008noreply@blogger.comtag:blogger.com,1999:blog-28823501.post-36843337510836711582011-08-07T00:52:35.104+10:002011-08-07T00:52:35.104+10:00Music to my ears Trent.
Now, for some reason, man...Music to my ears Trent.<br /><br /><i>Now, for some reason, many people who are advocates of propellant depots object to just using existing space storable propellants because that would mean you'd need to launch more mass than if you used cryogenic propellants.</i><br /><br />Not even that much more mass if you use three body trajectories and Lagrange point staging. Lagrange points are very close to the edge of the Earth's gravity well. From there on you could use storable propellant, and even electrical propulsion, which would have much higher Isp still.<br /><br />But it's strange, isn't it? It's just like SDLV proponents who someone always try to sneak in an HLV without a convincing reason.Martijn Meijeringhttps://www.blogger.com/profile/12081666469671666008noreply@blogger.com