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  1. #11
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    Quote Originally Posted by Przezdzieblo View Post
    Some data on QF 32 pdr:
    3,7" calibre, barrel of 62 calibres, chamber volume 550 cu in, working pressure 22 tsi.
    Mv of 32 lb APCBC shot - 3100 fps.
    In 1946 various experimental APDS were tested. Cores were designed as scaled up 6 and 17 pdr cores, 1,86 in diameter, 7 1/2 lb weight. APDS with "service" sabot (in lines of 17 pdr APDS) achieved mv of 4750 fps with chamber pressure of 21 tsi. Second design was pot-petal hybrid sabot (Permutter design with retaining petals, not Caddy`s Canadian pot sabot). The third and the last one was "petal" sabot, looking like "service" with shear points moved to forward of sabot (just like it was later introduced for 105 and 120 mm APDS). Thas specie achieved mv of 5050 fps (22 tsi chamber pressure).

    During plate trials experimental APDS (of not specified type) holed 200 mm thick plate at angle of attack of 40, 45 and 50 degrees (obliquity; 50 degrees obliquity would be plate at 40 degrees NATO, in this case - 311 mm line of sight) and striking velocities up to 4885 fps. Also the Proof Shots were made, with Duralumin body and flat steel head screwed into it.
    Can I ask what the source of that is?

  2. #12
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    The National Archives, there are few files about UK sabot ammunition development.

  3. #13
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    Excellent, thanks for the great help

  4. #14
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    Quote Originally Posted by Przezdzieblo View Post
    The National Archives, there are few files about UK sabot ammunition development.
    May I ask which document mentioned the "200mm/50 degrees"? I mean the Reference Code (such as "WO 32/4684" etc.)

  5. #15
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    The 32 Pounder ammunition94x909R 32Pr 1.jpg 94x909R x141

  6. The Following User Says Thank You to charley777 For This Useful Post:

    ron3350 (12th May 2019)

 

 
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