Battery AMTB 7 - Hancock

Battery AMTB 7 - Hancock (1943-1946) - Battery AMTB 7 - Hancock was a reinforced concrete World War II AMTB rapid fire 90mm gun battery on Fort Hancock (2), Monmouth County, New Jersey. Battery construction started 3 Feb 1943, was completed on 19 Mar 1943 and transferred to the Coastal Artillery for use on 22 Mar 1943 at a cost of $ 8,124.19. Deactivated in 1946.

Battery AMTB 7 - Hancock History

Template:HDSouthern New York
The AMTB battery at Fort Hancock (2) consisted of two 90mm guns mounted on 90mm M3 fixed gun mounts and two 90mm guns mounted on 90mm M1A1 mobile gun mounts. The mobile guns were held in storage and not emplaced. Concrete platforms were provided for both of the fixed guns. 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.

The above photos were taken at Fort Monroe, Battery Parrott

From FM 4-91: "This weapon consists of the 90-mm gun M1 and top carriage M1A1 on the 90-mm gun mount M3. The mount M3 is of the turret type, the shielding being constructed of boiler plates. This boiler plate shield provide fragmentation protection only. No shielding is provided at the rear due to the requirements for service of the piece. A sighting port in the shielding in front permits sighting in direction by the gun pointer."

References:

FM 4-91 - 90-MM Gun, Fixed Mount Service of the Piece
FM 4-126 - Antiaircraft Artillery, Service of the Piece, 90-mm Antiaircraft Gun
TM 9-373 - 90-mm Gun M1 and 90-mm Gun Mount T3 (M3)

**Battery AMTB 7 - Hancock Armament** (edit list)
Empl No	Caliber Type	Barrel Length	Model	Serial No	Manufacturer	Carriage	Service Dates
1	90mm Rifle	186.15"	M1	15187	Chevrolet	Pedestal Mount, M3, #13107, GM	1943-1946
2	90mm Rifle	186.15"	M1	15163	Chevrolet	Pedestal Mount, M3, #1398, GM	1943-1946
Source: RCW Form 1 10 Dec 1943, Coast Defense Study Group, Berhow, Mark A. ed, American Seacoast Defenses: A Reference Guide, 2nd Edition, CDSG Press, McLean, VA, 2004, ISBN 0-9748167-0-1, pages 80-81, 207

File:Fort Hancock (2) Battery AMTB 7 - Hancock.jpg

Battery AMTB 7 - Hancock Plan

Current Status

No period gun or mounts in place.

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Location: Fort Hancock (2), Monmouth County, New Jersey

Maps & Images

Lat: 40.471933 Long: -74.005531

Multi Maps from ACME
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Elevation: 24.37'

Sources:

U.S.Army, Supplement to the Harbor Defense Project of New York, (HDNY-AN-44), 1 Sep 1944, CDSG

Links:

Coast Defense Study Group, CDSG Press, CDSG Digital Library

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