20mm

  1. Micdrow

    20mm cannon manual

    Title says it all. Enjoy!!!
  2. W

    Effect of the debugged in tim for the BoB?

    What would the effect of having a reliable Hispano 20mm cannon with belt fed ammo in Spitfires and Hurricanes in time for the BoB? The Spitfire's performance my be degraded against the Bf 109, but would that be outweighed by the damage the 20mm could do on the bombers?
    • wuzak
    • Thread
    • 109 20mm bob effect spitfires
    • Replies: 10
    • Forum: Aviation
  3. gjs238

    Effect of the US produced HS.404R4M 20mm cannon being perfected pre-war?

    Or at least early war. Figure if we can have a thread about the "Effect of the R4M rocket being invented pre-war" we could do the same for US production of the Hispano-Suiza HS.404R4M 20mm cannon - not an unreasonable expectation.
    • gjs238
    • Thread
    • 20mm cannon effect hs.404r4m pre-war
    • Replies: 21
    • Forum: Aviation
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