You're [blush!] embarrassing me, Justin!

Space/Science » in reply to Bigger news than Mars

You're [blush!] embarrassing me, Justin!

Jacob Samorodin — 1/9/2004 4:14:38 PM (archived)

You took the thread heading out of my mouth/fingertips.

The heavy-lift boosters are here, so-to-speak.

The heavy-lift Atlas-5 is now in NASA's inventory; capable of parking 25,800kg (58,000Ibs) in LEO.
LH2/LOX propellant has a specific impulse of 440 seconds in a vacuum. A DeltaVee of 3200m/s (7,000mph) is necessary to get
from LEO to the moon
To get that DeltaVee with LH2/LOX you need a mass ratio of 2.23.

2.23 = 25,800Kg/11,500Kg.
11,500kg(11.5 metric tons minus the spent OTV = 9.5 metric tons) could be either a 2-3man lunar orbiter;
or a open-cockpit 2-man lunar-lander (seperately launched and
seperately "parked" in lunar orbit);
or a pressurized cabin/hut to be landed on the lunar surface
with all the victuals and life-support for a week on that world.
THAT'S ONLY THREE ATLAS-5 LAUNCHES!

Jacob

"Dost thou love live? Then do not squander time, for that is the stuff
that life is made of."
BENJAMIN FRANKLIN

The whole thread (50 posts)

Bush and the Moon - Tom Brosz - 1/9/2004 1:03:38 AM
- btw - isn't it cool, having to decide whether the post belongs in Space or CE? (n/t) - Fox - 1/9/2004 4:52:01 PM
- Show stopper - Buck Galaxy - 1/9/2004 2:46:11 PM
  - Potentially, but not necessarily - Larry J - 1/9/2004 3:47:07 PM
    - Were You Thinking About It When You Made Your Boeing Comment? - Mark Eby - 1/10/2004 4:05:52 AM
      - Actually, that was Airbus - Larry J - 1/10/2004 2:11:23 PM
        
        PS Your Cassini Comment Ignores 2 Important Engineering Concepts - Mark Eby - 1/10/2004 4:21:04 PM
        
        If you ever had to work with the prices of aerospace systems... - Larry J - 1/12/2004 3:01:10 AM
        
        Yes On Airbus - My Mistake, Additional Questions - Mark Eby - 1/10/2004 2:57:34 PM
    - re: Potentially, but not necessarily - Scott Evil - 1/9/2004 4:18:05 PM
      - I've been thinking along these lines for several years... - Larry J - 1/9/2004 4:43:59 PM
- re: Bush and the Moon - SteveS - 1/9/2004 2:38:57 PM
- Be careful.... - Gary - 1/9/2004 5:31:01 AM
- re: Bush and the Moon - dtb - 1/9/2004 3:12:13 AM
  - Orbit-only mission - Tom Brosz - 1/9/2004 6:32:33 AM
  - A lot becomes possible with shuttle out of the way - Justin Kelly - 1/9/2004 3:46:29 AM
  - re: Bush and the Moon - Buck Galaxy - 1/9/2004 3:36:51 AM
    - Mars' Moons Make No Sense - Mark Eby - 1/9/2004 3:47:01 AM
      - Flag and foot prints.... - Gary - 1/9/2004 5:33:08 AM
- The fine print - Robert - 1/9/2004 2:03:53 AM
  - context is space station - phil - 1/9/2004 1:51:49 PM
    - Geez, Phil... - Robert - 1/9/2004 7:31:31 PM
      - That's not my take on it - Buck Galaxy - 1/9/2004 7:50:52 PM
        
        re: That's not my take on it - McFly - 1/9/2004 10:00:16 PM
    - He's just asking the question - that's a good thing. - alcaray - 1/9/2004 4:58:00 PM
      - re: He's just asking the question - that's a good thing. - phil - 1/9/2004 5:36:59 PM
        
        seems so (n/t) - alcaray - 1/9/2004 5:45:24 PM
    - probably refers only to manned programs - pwokenyaw - 1/9/2004 4:42:35 PM
  - re: How about telescopes in space? - Raoul - 1/9/2004 6:52:33 AM
    - re: A mutual concern, Raoul. (n/t) - Marcia - 1/9/2004 5:01:51 PM
  - re: The fine print - Buck Galaxy - 1/9/2004 2:42:31 AM
    - re: The fine print - Marcia - 1/9/2004 5:22:50 AM
- Fantastic!! - FrankC - 1/9/2004 1:42:00 AM
- Bigger news than Mars - Justin Kelly - 1/9/2004 1:22:48 AM
  - You're [blush!] embarrassing me, Justin! - Jacob Samorodin - 1/9/2004 4:14:38 PM
  - I heard they are going to add $800 Million to NASA's budget starting with next year. - Scott Evil - 1/9/2004 3:48:28 PM
  - May not be so bad - Buck Galaxy - 1/9/2004 1:29:33 AM
    - I count about 23 - Justin Kelly - 1/9/2004 3:24:46 AM
- Some heavy stuff here... - Tom Brosz - 1/9/2004 1:10:37 AM
  - Son of Apollo....why? - Lee - 1/9/2004 4:35:00 AM
    - re: Son of Apollo....why? - Fox - 1/9/2004 4:22:07 PM
    - re: Son of Apollo....why? - dtb - 1/9/2004 5:14:32 AM
  - Buddy if this is true... - Buck - 1/9/2004 1:15:33 AM
    - re: Buddy if this is true... - Tom Brosz - 1/9/2004 6:25:18 AM
      - Just A Retread Of Bush 1 - Mark Eby - 1/10/2004 3:52:46 AM
      - relax...the Budget will not be a problem - Scott Evil - 1/9/2004 3:42:32 PM
        
        Doesn't our record high $6.9 trillion dollar national debt suggest we're $hackled, though? - SpaceProjects.com - 1/10/2004 5:53:02 PM
    - And, if it is not true - FrankC - 1/9/2004 1:44:07 AM
      - re: And, if it is not true - Jeff - 1/9/2004 3:10:09 AM
        
        Amen, Jeff - McFly - 1/9/2004 2:29:13 PM

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