P-38 .50 Gun Barrels/Blast Tubes

Discussion in 'Weapons Systems Tech.' started by ronl, Feb 17, 2008.

  1. ronl

    ronl Member

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    I have a question regarding the .50 cal gun barrels on the P-38. In later versions of the P-38, the gun barrels appear to be fitted with silver colored, solid blast tubes (similar to those on the P-47). In earlier versions of the P-38, the barrels where exposed (circular cooling holes in the barrel jackets).



    Does anyone know why the blast tubes or sleeves were fitted to the .50 cal barrels? I have looked for an explanation in the publications I have on the P-38, but can’t find anything that refers to it.

    I have posted this question on a number of Forums and thought I would post it here as well.



    Thanks.



    Ron
     
  2. Soren

    Soren Banned

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    They were put on to improve the aerodynamics of the a/c, or clean them up so to say.
     
  3. ronl

    ronl Member

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    Soren,

    Thanks for your reply. The use of the blast tubes to increase aerodynamics makes sense - although this is the first time I have heard that this was the reason for using them. Where did you come across this information?

    Thanks.

    Ron
     
  4. V-1710

    V-1710 Member

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    In addition, I think the P-38M night fighters had some sort of blast tube to hide muzzle flash.
     
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