Battery AMTB 11 - Miller Field

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Battery AMTB 11 - Miller Field (1943-1946) - Battery AMTB 11 - Miller Field was a reinforced concrete World War II AMTB rapid fire 90mm gun battery on Miller Airfield near Fort Wadsworth (1), Richmond County, New York. Battery construction started 12 Apr 1943, was completed 11 Jun 1943 and transferred to the Coast Artillery for use 10 Aug 1943. Deactivated in 1946.

Battery AMTB 11 - Miller Field History

Part of the Harbor Defense of Southern New York.
The AMTB battery at Miller Airfield consisted of two 90mm M1 guns mounted on 90mm T3-M3 gun mounts. Concrete pads for both these guns were laid in back of the beach at Miller Field. 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.

AMTB Front View
AMTB Interior View
AMTB Side View
AMTB Back View

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."


  • 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 11 - Miller Field Armament (edit list)
Model Serial
Manufacturer Carriage Service
3 90mm Rifle 186.15" M1 15539 Chevrolet Pedestal Mount, T3-M3, #7099, Chevrolet 1943-1946
4 90mm Rifle 186.15" M1 14819 Chevrolet Pedestal Mount, T3-M3, #6644, Chevrolet 1943-1946
Source: RCW Form 1, 8 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, 208
Battery AMTB 11 - Miller Field Plan

Battery AMTB 11 - Miller Field Plan

Current Status

Destroyed, no period gun or mounts in place.

Location: Miller Airfield near Fort Wadsworth, Richmond County, New York

Maps & Images

Lat: 40.566731 Long: -74.09164


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


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