Battery AMTB - Ebey's Landing

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Battery AMTB - Ebey's Landing (1943-1946) - Battery AMTB - Ebey's Landing was a reinforced concrete World War II rapid fire 90mm gun battery on the Fort Casey (1) reservation, Island County, Washington. Battery construction started 1943, was completed in 1944 and transferred to the Coast Artillery for use in 1944. Deactivated in 1946.

Battery AMTB - Ebey's Landing Site Along Hill Road
Battery AMTB - Ebey's Landing Site Marked by Lone Post
Battery AMTB - Ebey's Landing Site, No Remains

World War II (1941-1945)

Part of the Harbor Defense of Puget Sound.

The AMTB battery at Ebey's Landing consisted of two M1 90mm guns mounted on fixed M3 gun mounts and two M1 90mm guns mounted on M1A1 mobile carriages. The round concrete pads for the two fixed guns were laid 120' apart. 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."

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 - Ebey's Landing Armament (edit list)
Empl
No
Caliber
Type
Barrel
Length
Model Serial
No
Manufacturer Carriage Service
Dates
Notes
1 90mm Rifle 186.15" M1 7006 General Motors Pedestal Mount, M3, #175, Fisher 1943-1946
2 90mm Rifle 186.15" M1 7178 General Motors Pedestal Mount, M3, #232, Fisher 1943-1946
1 90mm Rifle 186.15" M1 3393 Watervliet Mobile Mount, M1A1, #1931, WPMC 1943-1946
1 90mm Rifle 186.15" M1 3187 Watervliet Mobile Mount, M1A1, #1933, WPMC 1943-1946
Source:
1. CDSG
2. 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, 217
3. Seacoast Artillery Ammunition Report of Harbor Defenses of Puget Sound For the period 1 July 1945 to 31 Dec 1945, NARA RG165, E257 Box 68 - Bolling Smith
Battery AMTB - Ebey's Landing Plan


Current Status

No remains, no period gun, mounts or pads in place.


Location: Map point approximate pending visit. Fort Casey, Whidbey Island, Island County, Washington.

Maps & Images

Lat: 48.19102 Long: -122.70628

See Also:

Sources:

  • U.S.Army, Supplement to the Harbor Defense Project, Harbor Defenses of Puget Sound, (CCA-AN-PS), 12 Aug 1945, CDSG
  • Seacoast Artillery Ammunition Report of Harbor Defenses of Puget Sound For the period 1 July 1945 to 31 Dec 1945, NARA RG165, E257 Box 68 - Bolling Smith.

Links:

Visited: 2 May 2014

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