Okay, you have my attention. What's the shape?

Space/Science » in reply to "Unfortunately all proposed CEV designs that I have seen are CM derivative." Mine aren't.

Gary — 11/6/2004 5:56:06 AM (archived)

Better yet, give me a ballistic coefficient, L/D ratio and a nose radius. I'm assuming this is for lunar return. Are you assuming fixed angle-of-attack with roll modulation? If so then your trajectory would probably be a partial skip out to keep the G loading below 9 Gs followed by atmospheric return to parachute deployment that kept the heat flux near a constant optimal value. Are you assuming an ablator heat shield? Reusable heatshields don't exist for lunar return.

Gary

The whole thread (20 posts)

Questions for Gary - from the CE board - Larry J - 11/5/2004 2:47:49 PM
- "Unfortunately all proposed CEV designs that I have seen are CM derivative." Mine aren't. (n/t) - Tom Brosz - 11/6/2004 3:05:12 AM
  - Okay, you have my attention. What's the shape? - Gary - 11/6/2004 5:56:06 AM
    - re: Okay, you have my attention. - Tom Brosz - 11/6/2004 6:37:16 PM
      - It's obscene! LOL! - SDAI-Tech1 - 11/9/2004 2:09:03 AM
- Answers for Larry - Gary - 11/5/2004 5:15:09 PM
  - Will Iraq kill the Bush space inititative the same way Vietnam did Apollo? - E.P. Grondine - 11/6/2004 2:36:27 AM
  - A somewhat related question for Gary. - Jacob Samorodin - 11/5/2004 6:21:15 PM
    - Answers for Jacob - Gary - 11/6/2004 5:37:41 AM
      - Follow up question - Larry J - 11/7/2004 3:24:33 PM
        
        Aerocapture - Gary - 11/7/2004 5:22:27 PM
        
        re: Aerocapture - Larry J - 11/8/2004 2:35:13 PM
        
        It all boils down to mass and launch cost - Gary - 11/8/2004 5:08:59 PM
        
        I was thinking along the lines of aerocapture followed by aerobraking... - Larry J - 11/8/2004 6:28:43 PM
        
        Ballutes - Gary - 11/9/2004 3:19:26 AM
        
        Sounds like we need a test flight - Larry J - 11/9/2004 3:10:18 PM
        
        Nonmilitary test flights are incredibly difficult to fund - Gary - 11/9/2004 4:56:27 PM
        
        I believe it - Larry J - 11/9/2004 5:50:30 PM
      - That would also explain why Soviet Zonds were targeted for the Indian Ocean. (n/t) - Jacob Samorodin - 11/6/2004 7:29:18 PM
  - Thanks - Larry J - 11/5/2004 5:29:46 PM

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The whole thread (20 posts)