re: What's the perormance differences between SRBs and liquid fueled replacements?

Space/Science » in reply to What's the perormance differences between SRBs and liquid fueled replacements?

E.P. — 9/10/2008 8:53:40 PM (archived)

Hi Lee -

Yes, they were put forward twice: once at shuttle development, and once after Challenger.

The big difference in performance is that liquids can be shut down, which gives you more abort modes.

As to ISP and size, if I remember right the lilquids have a higher ISP.

The real advantage to the initial proposals would have been the extremely low cost. Thus as stand alone units they would have dominated the commercial launch market.

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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The whole thread (23 posts)