So use more RD-180's

Space/Science » in reply to Wait a minute.

Nick Hoffman — 9/11/2008 12:16:06 AM (archived)

twins, triples, quads. It's all been done before. Issues of nozzle interactions have been usefully resolved.

ISP is ALL that matters - since it allows for the mass (weight) of the booster and attachments. Higher ISP means better performance. Liquids are throttleable within broad limits so you can tune engine thrust to the demands of the flight envelope and, as EP keeps thumping the table, you can always turn them OFF.

The whole thread (23 posts)

Is Griffin the worst NASA Administrator to ever hold the job? - E.P. - 9/8/2008 3:56:42 PM
- re: Is Griffin the worst NASA Administrator to ever hold the job? - NASA Pro - 9/17/2008 5:14:57 PM
- re: Is Griffin the worst NASA Administrator to ever hold the job? - Vince - 9/9/2008 6:05:35 PM
  - re: Is Griffin the worst NASA Administrator to ever hold the job? - E.P - 9/12/2008 9:00:06 PM
- The real influences in NASA's early years. - Jacob - 9/9/2008 2:05:08 PM
  - Nixon - E.P. - 9/9/2008 5:28:46 PM
  - LBJ IS GOD AT THE JSFC - carl - 9/9/2008 4:42:37 PM
    - He was at the right place at the right time in history, as far as NASA was concerned. (n/t) - Jacob - 9/9/2008 9:25:22 PM
      - More than that, HE WAS SLEDGEHAMMER - carl - 9/11/2008 4:26:36 PM
- re: In the past... - Raoul - 9/9/2008 10:31:48 AM
  - Reagan - E.P. - 9/9/2008 5:33:13 PM
    - What's the perormance differences between SRBs and liquid fueled replacements? - Lee - 9/9/2008 11:02:27 PM
      - re: What's the perormance differences between SRBs and liquid fueled replacements? - E.P. - 9/10/2008 8:53:40 PM
        
        Wait a minute. - Lee - 9/10/2008 10:43:00 PM
        
        So use more RD-180's - Nick Hoffman - 9/11/2008 12:16:06 AM
        
        You could only use so many. - Lee - 9/11/2008 1:40:18 AM
- All NASA administrators have simply followed orders...from the President from the Congress from the People... - Jacob - 9/8/2008 7:23:37 PM
  - Yes, but the rotten architecture and launchers are all Griffin's (n/t) - E.P. - 9/12/2008 6:59:00 PM
  - WE the PEOPLE at Fault - carl - 9/9/2008 4:47:17 PM
    - NOT REALLY - E.P. - 9/12/2008 7:01:25 PM
    - Congress gutted the NASA budgets between 1968-1972. - Jacob - 9/9/2008 9:23:20 PM
      - In Leaving Earth we discovered US - carl - 9/11/2008 4:29:19 PM
        
        Actually, we already are in space - E.P. - 9/12/2008 7:03:47 PM

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