Battery AMTB 21 - Rockaway Point

 (1943-1946) - Battery AMTB 21 - Rockaway Point was a reinforced concrete World War II AMTB rapid fire 90mm gun battery on Fort Tilden, New York. Battery construction started 3 Feb 1943, was completed 15 Mar 1943 and transferred to the Coast Artillery for use 15 Mar 1943 at a cost of $ 15,890.93. Deactivated in 1946.

World War II
The AMTB battery at Rockaway Point consisted of two 90mm, M1 guns mounted on 90mm, M3 fixed gun mounts and two 90mm M1 guns mounted on 90mm, M1A1 mobile gun mounts. Two concrete pads for the fixed guns were laid just back of the beach at Rockaway Point, Queens County, New York. The two mobile guns were emplaced alongside the fixed platforms on timber firing platforms. The battery had a dual mission of defense against fast enemy motor torpedo boats and enemy aircraft. The effective range of the guns was about 8,000 yards. Each weapon required a crew of 15, 9 men in the gun squad and 6 men in the ammunition squad.



Current Status
No period gun or mounts in place.

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