California, San Diego County, San Diego
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The three weapons are 3-inch 50 calibre duel purpose guns. Developed in the 1930s, the design was light weight for its time and used until automatic anti-aircraft weapons were perfected. This weapon was favored on smaller ships such as support vessels and anti-submarine escorts. It fired a fixed round which combined the thirteen pound shell and propellant in an attached casing like a bullet. It could fire a shell nearly seven miles at a muzzle velocity of 2,700 feet per second.
Placed on the National Register of Historic Places by the United States Department of Interior
(War, World II • Waterways & Vessels) Includes location, directions, 2 photos, GPS coordinates, map.
The three weapons are 3-inch 50 calibre duel purpose guns. Developed in the 1930s, the design was light weight for its time and used until automatic anti-aircraft weapons were perfected. This weapon was favored on smaller ships such as support vessels and anti-submarine escorts. It fired a fixed round which combined the thirteen pound shell and propellant in an attached casing like a bullet. It could fire a shell nearly seven miles at a muzzle velocity of 2,700 feet per second.
Placed on the National Register of Historic Places by the United States Department of Interior
(War, World II • Waterways & Vessels) Includes location, directions, 2 photos, GPS coordinates, map.