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History Moon Tank Mystery

Discussion in 'Traditional Hot Rods' started by J.Ukrop, Aug 13, 2021.

  1. J.Ukrop
    Joined: Nov 10, 2008
    Posts: 1,893

    J.Ukrop
    SUPER MODERATOR
    Staff Member

    J.Ukrop submitted a new blog post:

    Moon Tank Mystery

    [​IMG]

    Continue reading the Original Blog Post
     
  2. Tman
    Joined: Mar 2, 2001
    Posts: 34,954

    Tman
    ALLIANCE MEMBER

    Dig back in the HAMB archives, many good stories and threads about hydrazine. I think we first talked about it 20? years ago?
     
    Sparky57, AHotRod and seb fontana like this.
  3. oldcargary
    Joined: May 6, 2010
    Posts: 211

    oldcargary
    ALLIANCE MEMBER
    from devore, Ca

    Always liked the look of a moon tank. Still have a few in the shop.
     
  4. KevKo
    Joined: Jun 25, 2009
    Posts: 639

    KevKo
    Member
    from Motown

    Cool find. Hydrazine? Naaasty stuff! IIRC it is rocket fuel and will self ignite. Bad.
     

  5. Tman
    Joined: Mar 2, 2001
    Posts: 34,954

    Tman
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  6. dreracecar
    Joined: Aug 27, 2009
    Posts: 3,211

    dreracecar
    Member
    from so-cal

    Racers would often add DYE to the fuel to change its color to mess with the other races, The Surfers team of Skinner & Jobe were famous for doing this. You cant run on 100% Hydrazine , too dangerous and volatile to handle. When the racers did experiment with it, it was only a beaker full to 5 gal, pour it in, cap and shake the tank--- get the hell out of the way
     
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  7. big john d
    Joined: Nov 24, 2011
    Posts: 255

    big john d
    Member
    from ma

    the last space capsule that was recovered and put on the deck was not openedd for 10-15 minutes so the hydrazine vapors could disapate they use it in the small steering jets ( rockets?)
     
  8. Budget36
    Joined: Nov 29, 2014
    Posts: 7,267

    Budget36
    Member

    I like the “shake it up and run” !!!
     
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  9. DDDenny
    Joined: Feb 6, 2015
    Posts: 15,383

    DDDenny
    Member
    from oregon

    I imagine those ears on the cap were not removed for saving weight but so it couldn't be overtightened, as per the warning.
    A bit of a pressure relief I assume.
     
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  10. yellow dog
    Joined: Oct 15, 2011
    Posts: 470

    yellow dog
    Member
    from san diego

    I don't believe the DYMO tape labels have much credibility. The "100% " label is ridiculous.
    The "Do Not Tighten Filler Cap" is another question as UDMH absorbs atmospheric moisture
    quite readily. UDMH BP is significantly higher than even gasoline, so that's the least of other
    safety concerns.
    Lots of fuels were experimented with in the 50's maybe 60's until finally NHRA
    squashed. I still like propylene oxide w/ nitromethane used at whopping 3%, but NHRA made a big issue out of it. In my later career I utilized 20K gal railcars monthly w/o ESH issues.
     
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  11. dreracecar
    Joined: Aug 27, 2009
    Posts: 3,211

    dreracecar
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    from so-cal

    Forgot to add---- at the end of the run, immediately drain the tank of the remaining fuel
     
  12. Truck64
    Joined: Oct 18, 2015
    Posts: 5,104

    Truck64
    Member
    from Ioway

    Hydrazine was used for spacecraft thrusters as one component of what are known as hypergolic propellents, usually paired with nitrogen tetroxide.

    They wanted something simple and reliable, the two components pretty much mind their own business till they are mixed. One of the lesser known "features" of the Apollo lunar module, there could be no actual testing of the actual engines used in the spacecraft because these particular chemicals are so corrosive. So every liftoff from the Moon was the first, and only, instance where that particular engine had ever been fired. If they didn't work for any reason, the Astronauts would be marooned.
     
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  13. Speed Gems
    Joined: Jul 17, 2012
    Posts: 3,592

    Speed Gems
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  14. Truck64
    Joined: Oct 18, 2015
    Posts: 5,104

    Truck64
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    from Ioway

    I thought the Moon was on topic? :)

    Sorry if any delicate sensibilities were offended. /s
     
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  15. Okie Pete
    Joined: Oct 29, 2008
    Posts: 3,551

    Okie Pete
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    Very Kool buy . What’s the story on the belt buckle with the roadster on it !
     
  16. Rramjet1
    Joined: Mar 13, 2018
    Posts: 153

    Rramjet1

    F-16’s use a form of Hydrazine to operate the Auxiliary Power Unit.
     
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  17. Kevin O'Connell
    Joined: Dec 21, 2008
    Posts: 22

    Kevin O'Connell
    Member

     
  18. Kevin O'Connell
    Joined: Dec 21, 2008
    Posts: 22

    Kevin O'Connell
    Member

    Cool hydroplane- yours? Still got it?
     
  19. Kevin O'Connell
    Joined: Dec 21, 2008
    Posts: 22

    Kevin O'Connell
    Member

    I’m a nut for anything vintage Moon. Even my 6 volt positive ground has a voltage inverter and a Moon tach. And all their finned aluminum I can find!
     
  20. It was labeled like that as a joke… I’m sure the other racers laughed. FWIW, that pwrformance automotive shop was the sole supplier of race fuel at Bonneville for decades.
     
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  21. Kan Kustom
    Joined: Jul 20, 2009
    Posts: 2,680

    Kan Kustom
    Member

    I thought I was the only guy in the world that lopped off the cap wings. I got my Moon tank soon after they started putting the different caps on and I lopped the cap wings off and polished it to look less old. Funny the the things we do to change with the times only to think how silly it was , looking back.
     
    41 GMC K-18 likes this.
  22. Atwater Mike
    Joined: May 31, 2002
    Posts: 10,707

    Atwater Mike
    ALLIANCE MEMBER

    Talked to an older feller at Pomona a few years back. He was a machinist that contracted with Dean Moon in the mfg. of the Moon tanks.
    He laughingly referred to himself as a 'retired Moonspinner'!
     
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