Top view of USS Drum's conning tower, showing her twin 20mm Oerlikon anti-aircraft weapons, 1940s

Caption     Top view of USS Drum's conning tower, showing her twin 20mm Oerlikon anti-aircraft weapons, 1940s ww2dbase
Photographer    Unknown
Source    ww2dbaseUnited States Navy via navsource.org
Link to Source    Link
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Drum   Main article  Photos  
20 mm Oerlikon   Main article  Photos  
Photo Size 903 x 630 pixels
Added By C. Peter Chen
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Visitor Submitted Comments

1. Commenter identity confirmed BILL says:
25 Feb 2009 07:03:40 PM

Info above photo: Twin mount 20mm Oerlikon cannon, many subs even mounted 40mm Bofors cannon's subs also carried the fifty caliber machine-gun. The weapons would be brought on deck, and used for specifie use the .50's being brought in before diving. Also carried was the 3inch deck gun.

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