Battery AMTB - Marrowstone Point: Difference between revisions

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{{SocialNetworks}}
{{SocialNetworks}}
'''{{PAGENAME}}''' (1944-1946) - Battery AMTB - Marrowstone Point was a reinforced concrete [[World War II]] rapid fire 90mm gun battery on [[Fort Flagler]], Washington. AMTB stands for Anti Motor Torpedo Boat. Battery construction started 8 Oct 1943, was completed 20 Dec 1943 and transferred to the Coastal Artillery for use 25 Mar 1944. Deactivated in 1946.
'''{{PAGENAME}}''' (1944-1946) - Battery AMTB - Marrowstone Point was a reinforced concrete [[World War II]] rapid fire 90mm gun battery on [[Fort Flagler]], Jefferson County, Washington. Battery construction started 8 Oct 1943, was completed 20 Dec 1943 and transferred to the Coastal Artillery for use 25 Mar 1944. Deactivated in 1946.
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== {{PAGENAME}} History ==
== {{PAGENAME}} History ==
{{HDPuget Sound}}<br>
{{HDPuget Sound}}


The AMTB battery at Marrowstone Point consisted of two 90mm gun mounted on 90mm M3 gun mounts and two 90mm guns on M1A1 mobile carriages. 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.<br>
The AMTB battery at Marrowstone Point consisted of two 90mm gun mounted on 90mm M3 gun mounts and two 90mm guns on M1A1 mobile carriages. 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.<br>
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(B) 48.101872, -122.68813
(B) 48.101872, -122.68813
{{PAGENAME}}<br>(1944-1946)
{{PAGENAME}}<br>(1944-1946)
(1) 48.101743, -122.687947
(1) 48.101743, -122.687947
Gun emplacement #1
Gun emplacement #1
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'''Sources:'''  
'''Sources:'''  
* {{CDSGPacific}}
{{HBSuppPugetSoundWWII}}
 
'''Links: '''
'''Links: '''
* [http://www.sdphotos.org/ca/puget/flagler/btrymarrow/marrow.html Puget Sound Site]
* [http://www.sdphotos.org/ca/puget/flagler/btrymarrow/marrow.html Puget Sound Site]
* {{CDSGBatteryLink}}


{{Visited|17 April 2010}}
{{Visited|17 April 2010}}
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[[Category:Washington All]]
[[Category:Washington All]]
[[Category:Washington Battery]]
[[Category:Washington Battery]]
[[Category:Washington Jefferson County]]
[[Category:{{PAGENAME}}]]
[[Category:{{PAGENAME}}]]
[[Category:Washington Jefferson County]]
[[Category:Destroyed]]
[[Category:Destroyed]]
[[Category:State Park]]
[[Category:State Park]]

Revision as of 09:20, 7 June 2011

Battery AMTB - Marrowstone Point (1944-1946) - Battery AMTB - Marrowstone Point was a reinforced concrete World War II rapid fire 90mm gun battery on Fort Flagler, Jefferson County, Washington. Battery construction started 8 Oct 1943, was completed 20 Dec 1943 and transferred to the Coastal Artillery for use 25 Mar 1944. Deactivated in 1946.

Battery AMTB Marrowstone Point Emplacement #1
Battery AMTB Marrowstone Point Emplacement #2
Battery AMTB Marrowstone Point Emplacement #1
Battery AMTB Marrowstone Point Emplacement #2 from below

Battery AMTB - Marrowstone Point History

Part of the Harbor Defense of Puget Sound.

The AMTB battery at Marrowstone Point consisted of two 90mm gun mounted on 90mm M3 gun mounts and two 90mm guns on M1A1 mobile carriages. 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 - Marrowstone Point Armament (edit list)
Empl
No
Caliber
Type
Barrel
Length
Model Serial
No
Manufacturer Carriage Service
Dates
Notes
1 90mm Rifle 186.15" M1 6682 General Motors Pedestal Mount, M3, #81, Fisher 1944-1946
2 90mm Rifle 186.15" M1 5389 Watervliet Pedestal Mount, M3, #166, Fisher 1944-1946
Source: RCW Form 1, 25 Mar 1944, 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
Battery AMTB - Marrowstone Point Plan


Current Status

A part of Fort Flagler State Park, Jefferson County, Washington. No guns or mounts in place.


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Location: (Map point is approximate) Marrowstone Point, Fort Flagler State Park, Jefferson County, Washington.

Maps & Images

Lat: 48.1012984 Long: -122.6873034

Sources:

  • U.S.Army, Supplement to the Harbor Defense Project, Harbor Defenses of Puget Sound, (CCA-AN-PS), 12 Aug 1945, CDSG

Links:

Visited: 17 April 2010

Battery AMTB - Marrowstone Point Picture Gallery

Click on the picture to see a larger version. Contribute additional pictures - the more the better!