B-17 chin and tail .50 cal barrell extensions

Discussion in 'Weapons Systems Tech.' started by DarrellC, Jul 29, 2013.

  1. DarrellC

    DarrellC Member

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    I've seen these extensions on some .50 cal's. What are they?
     
  2. T Bolt

    T Bolt Well-Known Member

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    I could be wrong but I believe they are flash shields so as not to blind the gunner.
     
  3. Greyman

    Greyman Active Member

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    I forget what they were called - blast tubes I think - for the chin guns. I read that when fired at maximum elevation the guns could crack the nose dome, so they added the extra bits to guard against this.

    I'm not sure about the tail guns though.
     
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