Reuses more of the vehicle

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Post #377,869 by malraux 7/10/13 8:15:31 PM Reply	Reuses more of the vehicle As long as the extra fuel is cheaper than the sum of the parts that are recovered, it's economically viable. Regards, -scott Welcome to Rivendell, Mr. Anderson.
Post #377,870 by drook 7/10/13 8:21:57 PM Reply	That's a big "if" It's not just the fuel for the landing, it's the extra fuel to get the landing fuel up there to begin with. And the extra weight of the tank for that extra fuel. And the extra fuel for the weight of the larger tank. etc. etc. etc. Weight is a problem that compounds quickly. Sure, there can be a point where the lines cross, and this demo sets some parameters for drawing those lines. -- Drew
Post #377,872 by malraux 7/10/13 8:56:36 PM Reply	Presumably they've done the calculations And arrived at a number they can live with. Regards, -scott Welcome to Rivendell, Mr. Anderson.
Post #377,876 by drook 7/10/13 10:01:27 PM Reply	Depends on the question you ask though, doesn't it? Which leads to my opinion on the shuttle. They wanted a reusable craft, then came up with the justification afterwards. -- Drew
Post #377,879 by folkert 7/10/13 10:29:55 PM Reply	But honestly... That is how the whole space thing started isn't it? -- greg@gregfolkert.net PGP key 1024D/B524687C 2003-08-05 Fingerprint: E1D3 E3D7 5850 957E FED0 2B3A ED66 6971 B524 687C
Post #377,880 by malraux 7/10/13 10:33:20 PM Reply	Different thing... Shuttle: designed by committee to be excellent at nothing. SpaceX is a business. Regards, -scott Welcome to Rivendell, Mr. Anderson.

Elon Musk's 'Grasshopper' rocket: hovers, lands back on pad. - (Ashton) - (12) - July 10, 2013, 01:54:12 AM EDT

Wow. Just. Wow! -NT - (mmoffitt) - July 10, 2013, 11:04:10 AM EDT

Now that's control! -NT - (a6l6e6x) - July 10, 2013, 11:40:20 AM EDT

Interesting. - (Another Scott) - (9) - July 10, 2013, 12:03:10 PM EDT

Re: Interesting. - (altmann) - (7) - July 10, 2013, 03:49:23 PM EDT

Still think they should do ballistic drop crew capsules - (drook) - (6) - July 10, 2013, 04:26:36 PM EDT

Reuses more of the vehicle - (malraux) - (5) - July 10, 2013, 08:15:31 PM EDT

That's a big "if" - (drook) - (4) - July 10, 2013, 08:21:57 PM EDT

Presumably they've done the calculations - (malraux) - (3) - July 10, 2013, 08:56:36 PM EDT

Depends on the question you ask though, doesn't it? - (drook) - (2) - July 10, 2013, 10:01:27 PM EDT

But honestly... - (folkert) - July 10, 2013, 10:29:55 PM EDT

Different thing... - (malraux) - July 10, 2013, 10:33:20 PM EDT

Good Wikipedia pages on reusable rockets. - (Another Scott) - July 10, 2013, 11:07:13 PM EDT

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