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Battery 402 (1943-1950) - Battery 402 was a reinforced concrete, World War II 8-inch coastal gun battery on Fort Schwatka, Amaknak Island, Alaska. Battery construction started on 3 Nov 1942, was completed on 8 Nov 1943 and transferred to the Coastal Artillery for use on 8 Nov 1943. Deactivated in 1950.
 Battery 402 Magazine Interior, Shell Table on the Left. |
 Battery 402 Magazine Interior Looking Toward Entrance. |
 Battery 402 Gun Emplacement #2 Remains. |
 8" Mark VI M3A2 Gun and M1 Barbette Carriage. |
Part of the Harbor Defense of Dutch Harbor.
Originally built as a World War II concrete coastal gun battery with two 8" MkVI-M3A2 rapid fire guns mounted on M-1 Barbette Carriages placed on either side of an earth covered reinforced concrete magazine and support structure. Power was supplied by internal generators and commercial power.
Battery 402 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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| 1
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8" Rifle
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369"
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Mark VI M3
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A2
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114
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Naval Gun Factory
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Barbette, M-1, #11, Baldwin
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1942-1943-1945-1946
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See note 1
From SS New Hampshire
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| 2
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8" Rifle
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369"
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Mark VI M3
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A2
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238
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Naval Gun Factory
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Barbette, M-1, #12, Baldwin
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1942-1943-1945-1946
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See note 1
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Source: RCW Form 1, 1 Aug 1944, CDSG, Berhow, Mark A. ed, American Seacoast Defenses: A Reference Guide, 3rd Edition - PDF, CDSG ePress, McLean, VA, 2012, ISBN 0-9748167-0-1, page 114-115
Note 1: CDSG Gun Card Collection from NARA
Gun #114 transferred to Battery 402 6 Mar 1943
Gun # 238 transferred to Battery 402 14 Feb 1943
Both guns were destroyed by explosives in August 1946.
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Current Status
No period guns or mounts in place. Remains of the two concrete gun emplacements and the underground magazine survive as well as foundation ruins of other buildings.
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Location: Fort Schwatka, Amaknak Island, Aleutians West Census Area, Alaska.
Maps & Images
Lat: 53.9230 Long: -166.51441
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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 Dutch Harbor, (SRHDDH), 1944, CDSG
- Berhow, Mark A. ed, American Seacoast Defenses: A Reference Guide, 3rd Edition - PDF, CDSG ePress, McLean, VA, 2012, ISBN 0-9748167-0-1, page 224,229 M1 Barbette carriage (long-range) BCLR
- NPS - Fort Schwatka Self Guided Tour (large pdf)
Links:
Visited: No
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