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Battery AMTB - Deception Pass (1942-1945) - Battery AMTB - Deception Pass was a World War II AMTB rapid fire 90mm gun battery at Deception Pass, Island County, Washington. Battery construction started in 1942 and was completed in 1942. Deactivated in 1945 at the end of the war. Also referred to as Battery AMTB 1A within the harbor defense.
Part of the Harbor Defense of Puget Sound.
The AMTB battery at Deception Pass consisted of two 90mm M1 guns mounted on 90mm M1A1 mobile gun mounts. Concrete pads were provided for the mobile guns. Two earth-covered magazines provided protection for the ammunition. Electric power was provided by M-7 portable generators. The equipment and the guns for the battery were normally stored at Fort Casey and emplaced for alerts and practice. The battery reported directly to the HECP at Fort Worden.
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 or 4.5 miles. Each weapon required a crew of 15, 9 men in the gun squad and 6 men in the ammunition squad.
In addition to the two 90mm guns, there were four positions for 50 Caliber AA Weapons and a position for portable Searchlight #1. The fire control equipment of this battery consisted of an M-9 Director and an M-2 Height Finder. Both instruments were to be emplaced in prepared positions and protected laterally from bomb and shell fragments by sandbagged breastworks.
Battery AMTB - Deception Pass Armament (edit list)
Empl
No
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Caliber
Type
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Barrel
Length
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Model
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Serial
No
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Manufacturer
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Carriage
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Service
Dates
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Notes
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| M
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90mm Rifle
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186.15"
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M1
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3406
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Watervliet
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Mobile Mount,
M1A1, #3788, WPMC
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1943-1946
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| M
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90mm Rifle
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186.15"
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M1
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3436
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Watervliet
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Mobile Mount,
M1A1, #3790, WPMC
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1943-1946
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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
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.
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Current Status
No remains.
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Location: Deception Pass State Park, Island County, Washington.
Maps & Images
Lat: 48.40207 Long: -122.66294
- Multi Maps from ACME
- Maps from Bing
- Maps from Google
- Elevation: .....'
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GPS Locations:
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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:
Fortification ID:
- WA0029 - Battery AMTB - Deception Pass
- WA0337 - Battery AMTB 1A
Visited: 13 May 2014
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