
Historical Information | ||||||||||||
Caption | 40mm Bofors quad mount aboard USS Iowa, New York Navy Yard, New York, United States, 9 Jul 1943 ww2dbase | |||||||||||
WW2-Era Location Name | Brooklyn, New York, United States | |||||||||||
Date | 9 Jul 1943 | |||||||||||
Photographer | Unknown | |||||||||||
Source Information | ||||||||||||
Source | ww2dbaseUnited States Navy via navsource.org | |||||||||||
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Photos on Same Day | 9 Jul 1943 | |||||||||||
Colorized By WW2DB |
Colorized with Adobe Photoshop |
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Licensing Information | ||||||||||||
Licensing | Public Domain. Please support the navsource.org project and remember the dedication of its founder Paul Yarnall. Additionally, according to the United States copyright law (United States Code, Title 17, Chapter 1, Section 105), in part, "[c]opyright protection under this title is not available for any work of the United States Government". Please contact us regarding any inaccuracies with the above information. Thank you. |
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Metadata | ||||||||||||
Added By | C. Peter Chen | |||||||||||
Photo Size | 800 x 548 pixels |
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26 Jun 2013 02:15:33 AM
The dedicated US late-war AA mounting was the quadruple 40mm Bofors; it was fitted in large numbers to virtually every major US vessel. It was a water-cooled power-driven mounting, the configuration being a twin; quads comprised pairs of twins in a common tub. Shell weight was about 2lb (0.9kg) and rate of fire has been measured at a figure of 150-175 rounds per minute for each barrel of the mounting.
Source: Tony Gibbons. The Complete Encyclopedia of Battleships and Battlecruisers pp253, (Salamander 1983)