Cannon armed Hellcats

Discussion in 'Weapons Systems Tech.' started by ONE_HELLCAT, Dec 13, 2008.

  1. ONE_HELLCAT

    ONE_HELLCAT Member

    Joined:
    May 26, 2008
    Messages:
    192
    Likes Received:
    0
    Trophy Points:
    16
    Occupation:
    Student
    Location:
    Ventura County
    I know there were a few of them, and my friend's looking for some pictures of them. If anyone has any pictures, that would be much appreciated.
     
  2. Wurger

    Wurger Siggy Master
    Staff Member Administrator

    Joined:
    Jun 19, 2005
    Messages:
    47,793
    Likes Received:
    1,556
    Trophy Points:
    113
    Occupation:
    A retired military Navigator/ATC, FIS controller
    Location:
    Poland
    The kind of a Hellcat armament was tested with F6F-3 late version (an other source says F6F-5).These 20mm cannons didn't become a standard equippent but many of F6F-5N and E night fighters were armed with them.Actually these Helcats were equipped with the 20mm cannons and .50 calibre machine guns combination for which the inboard .50 caliber MGs had been replaced by one cannon for each wing.Besides XF6F-1 prototype was a test bed for the XF6F-4 and was armed with four 20mm cannons instead of these six standard .50 calibre MGs and was never accepted for production.


    The pic source -Detail Scale, Squadron/Signal Publication no.49 for Hellcat and some unknown.
     

    Attached Files:

  3. 109ROAMING

    109ROAMING Active Member

    Joined:
    May 25, 2008
    Messages:
    5,999
    Likes Received:
    1
    Trophy Points:
    36
    Location:
    New Zealand
    Nice shots mate!

    news to me the hellcat had 20mm's
     
  4. Thorlifter

    Thorlifter Well-Known Member

    Joined:
    Jun 10, 2004
    Messages:
    7,911
    Likes Received:
    189
    Trophy Points:
    63
    Occupation:
    IT Nerd
    Location:
    Dallas, Tx Jubail, Saudi Arabia
    Question.........why the longer barrel for the cannon? Is it needed to get that big shell spinning?
     
  5. renrich

    renrich Active Member

    Joined:
    Jan 19, 2007
    Messages:
    4,542
    Likes Received:
    5
    Trophy Points:
    38
    Occupation:
    real estate
    Location:
    Montrose, Colorado
    With a slow burning powder, perhaps like Hodgsdon 4831 a barrel is needed that is long enough to allow complete expansion of the burning powder. The installation may have required that that much of the barrel needed to protrude so the maximun MV was achieved.
     
  6. mudpuppy

    mudpuppy Member

    Joined:
    Mar 6, 2008
    Messages:
    646
    Likes Received:
    2
    Trophy Points:
    18
    Location:
    Appalachian Foothills in Virginia
    This is news for me too, that any of the Hellcats were ever fitted with 20mm cannons. Does anyone have any accounts of the night fighters, that Wurger mentions above, using the 20 mm cannons and their effectiveness?
    As for the barrel length, I just assumed that was due to the larger breech and loading mechanisms in the wing that required the barrel to protrude from the leading edge. Is it both?
     
  7. Glider

    Glider Well-Known Member

    Joined:
    Apr 23, 2005
    Messages:
    6,161
    Likes Received:
    128
    Trophy Points:
    63
    Gender:
    Male
    Occupation:
    Consellor
    Location:
    Lincolnshire
    My understanding was that very few of the nightfighters were fitted with 20mm, those that were tended to be called specials. Certainly the Hellcat Nightfighters used by the RN stayed with 6 x HMG.

    The Hispano 404 cannon was a much bigger weapon than the 0.50 M2 used by the USN being roughly twice the length.
     
  8. ONE_HELLCAT

    ONE_HELLCAT Member

    Joined:
    May 26, 2008
    Messages:
    192
    Likes Received:
    0
    Trophy Points:
    16
    Occupation:
    Student
    Location:
    Ventura County
    Thanks for the pictures. Is the first one a night fighter like the rest?
     
  9. Thorlifter

    Thorlifter Well-Known Member

    Joined:
    Jun 10, 2004
    Messages:
    7,911
    Likes Received:
    189
    Trophy Points:
    63
    Occupation:
    IT Nerd
    Location:
    Dallas, Tx Jubail, Saudi Arabia
    I wouldn't think so One Hellcat as it still has the lighter colored paint on it.
     
  10. Wurger

    Wurger Siggy Master
    Staff Member Administrator

    Joined:
    Jun 19, 2005
    Messages:
    47,793
    Likes Received:
    1,556
    Trophy Points:
    113
    Occupation:
    A retired military Navigator/ATC, FIS controller
    Location:
    Poland
    You'r welcome mate.:)
    No, the Hellcat in the first pic was a F6F-3 equipped with cannons for tests.
    As you can see the bird was painted with three-colour camo scheme.
     
  11. Micdrow

    Micdrow “Archive”
    Staff Member Moderator

    Joined:
    Aug 21, 2006
    Messages:
    7,716
    Likes Received:
    424
    Trophy Points:
    83
    Occupation:
    Manufacture Tech
    Location:
    Wisconsin
    Close up detail from the book hellcat squadron signal book 26.

    Will leave this link here for a day or two and then move to weapons thread as a great resource.
     

    Attached Files:

  12. Wurger

    Wurger Siggy Master
    Staff Member Administrator

    Joined:
    Jun 19, 2005
    Messages:
    47,793
    Likes Received:
    1,556
    Trophy Points:
    113
    Occupation:
    A retired military Navigator/ATC, FIS controller
    Location:
    Poland
    A good idea Paul.:D
     
  13. Micdrow

    Micdrow “Archive”
    Staff Member Moderator

    Joined:
    Aug 21, 2006
    Messages:
    7,716
    Likes Received:
    424
    Trophy Points:
    83
    Occupation:
    Manufacture Tech
    Location:
    Wisconsin
    Thanks Wojtek!!!
     
  14. Thorlifter

    Thorlifter Well-Known Member

    Joined:
    Jun 10, 2004
    Messages:
    7,911
    Likes Received:
    189
    Trophy Points:
    63
    Occupation:
    IT Nerd
    Location:
    Dallas, Tx Jubail, Saudi Arabia
    Good idea Micdrow!
     
Loading...

Share This Page