WWII submarine warfare in the Pacific

 

The U.S. SUBMARINE WAR
  in the PACIFIC  1941 - 1945


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 40mm Bofars Anti-Aircraft Deck Gun
World War II U.S. Navy Submarine
Weapons, Armament and Firepower 1941 - 1945



 


Single 40mm Bofars
 

40 mm Single


 

40mm bofars anti aircraft  deck gun

The US Navy's largest machine gun was the Bofars designed 40mm Mk3, an automatic, rapid firing anti-aircraft gun, capable of delivering 160 rounds per minute at a maximum range of 2,800 yards - although its most effective range depended upon the actual type of ammunition used.

While the single 40mm was air cooled and manually loaded, aimed and fired, both the twin and quad (double and quadruple barreled) guns were water cooled and was capable of firing by either manual, local power or by director power fire control which were normally found on surface combatants of destroyer escort size or larger.

Crew size depended upon the gun - The single 40mm had a crew of four, the twin had seven and the typical quad gunnery crew consisted of eleven. Ammunition was fed into the loader by hand in clips of four rounds. The fully automatic gun mechanism operated through the recoil. 

GUN CREW

Pointer
Trainer
Gun Captain
Loaders*

* Single 40mm had two loaders and no Gun Captain. The Twin and Quad 40 crews both had Gun Captains with four and eight loaders respectively.

 

 

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WWII Unrestricted Submarine Warfare

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  RESOURCE NOTES:
Product photo
United States Submarine Operations in World War II
By Theodore Roscoe
United States Naval Institute
George Banta Company Inc Copyright 1949
Product photo Silent Victory: The U.S. Submarine War Against Japan
By Clay Blair
J.B. Lippincott Company
Copyright 1975
Product photo Subs Against the Rising Sun:
U.S. Submarines in the Pacific

By Keith H. Milton
Yucca Free Press
Copyright 2000
  U. S. Submarines in World War II:
An Illustrated History of the Pacific

By Larry Kimmett & Margaret Regis
Navigator Publishing
Copyright 191996
 
   

 


 
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