| Caption | 40mm Bofors quad mount aboard USS Iowa, New York Navy Yard, New York, United States, 9 Jul 1943 ww2dbase | |||||||||||
| Photographer | Unknown | |||||||||||
| Source | ww2dbaseUnited States Navy via navsource.org | |||||||||||
| More on... |
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| Photo Size | 800 x 548 pixels | |||||||||||
| Photos on Same Day | 9 Jul 1943 | |||||||||||
| Photos at Same Place | Brooklyn, New York, United States | |||||||||||
| Added By | C. Peter Chen | |||||||||||
| Licensing | Public Domain. Please support Paul Yarnall's effort with his navsource.org project. 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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| Colorized By WW2DB |
Colorized with Adobe Photoshop |
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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)