AT 38mm Threaded Closure

Discussion in 'Propulsion' started by Kruegon, Apr 13, 2015.

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  1. Apr 13, 2015 #1

    Kruegon

    Kruegon

    Kruegon

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    Can anyone tell me the diameter, depth, and thread pattern of the AT 38mm threaded closure? I'm figuring it's 1/4"-20 @ 1/2" depth but it's strictly a big guess.
     
  2. Apr 13, 2015 #2

    mpitfield

    mpitfield

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    threaded 5/16" X 18 TPI, not sure of the depth...Loki uses 1/4"-20
     
    Last edited: Apr 13, 2015
  3. Apr 13, 2015 #3

    rc dude

    rc dude

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  4. Apr 13, 2015 #4

    Kruegon

    Kruegon

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    Thanks. I found an 800# SS eye bolt that is perfect. Solid eye too. Not bent. Now if I could just locate a 29mm threaded closure I'd be set.
     
    Last edited: Apr 14, 2015
  5. Apr 14, 2015 #5

    Kruegon

    Kruegon

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    Any reason that I couldn't use the threaded closure for all flights? If I have a threaded can I use it without the anchor and just fly it as a plugged or is there a need for just a plugged closure?
     
  6. Apr 14, 2015 #6

    blackjack2564

    blackjack2564

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    Use away.... no reason not to, I do.
     
  7. Apr 14, 2015 #7

    blackjack2564

    blackjack2564

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    Make your own.

    Just a machine screw and bolt.
    Drill through knurled part of closure.
    Insert screw attach Kevlar loop, for recovery attachment.
    Section of plastic straw over threads [blue] to keep from chaffing the kevlar.

    Remove if you want to use for motor eject.

    I have/use several.

    DSCN3822.jpg

    DSCN3820.jpg

    DSCN3823.jpg
     

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