16 inch Coast Gun M1919

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16 inch Coastal Defense Gun M1919
16 in Coastal Defense Gun at the US Army Ordnance Museum
Type	Coastal Artillery
Place of origin	USA
Service history
In service	1920—1946
Used by	United States Army
Wars	World War II
Specifications
Barrel length	50 calibers (67 ft, 20 m)

Caliber	16 in (406 mm)
Carriage	M1919 Barbette, fixed
Traverse	215° (Btry. Hamilton)
Effective range	44,680 yards (40,855 m)

The 16 inch Coastal Defense Gun M1919 was a large artillery piece installed to defend major United States' seaports between 1920 and 1946.

1 History
2 Specifications
3 References
4 External links

[edit] History

The first 16-inch gun (35 caliber) was started in 1895^[1] and completed in 1902 by the Watervliet Arsenal.^[2] It was eventually mounted on a disappearing carriage in Fort Grant, Panama Canal Zone, where it served until scrapped in 1943.^[1]

The second 16-inch was the United States Army 50 caliber Model 1919 (M1919). It was deployed to Fort Michie, Great Gull Island, New York.^[1] An additional six of the Army designed M1919 gun were built and deployed.^[3].

In 1922, the terms of the Washington Naval Treaty caused the US Navy to cancel the Lexington class battlecruisers, surplusing 16-inch/50 caliber Mark II and Mark III barrels. These 20 guns were transferred to the Army, who built a new version of the M1919 mount for the naval guns. On 27 July 1940, the Army's Harbor Defense Board recommended the construstion of 27 16" gun batteries to protect stategic points along the US coastline. Typical of this plan were the guns placed to protect Narragansett Bay, two 16 inch guns were placed in Battery Gray, Fort Church, Little Compton, Rhode Island and two more were placed in Battery Hamilton, Fort Greene, Point Judith. A second battery of 16" guns at Fort Greene, Battery 109, had construction suspended in 1943 and never received guns. These batteries were placed such that they not only protected Narraganset Bay, but interdicted the main channels into Buzzards Bay and the east end of Long Island Sound.^[4]

[edit] Specifications

The gun fired a 2,240 lb. projectile to a range of 26 miles.^[4] The estimated cost of the gun and barbette was $520,000 in 1938.^[4] All but one of these guns were scrapped by 1950.^[3] The remaining piece is at the US Army Ordnance Museum, Aberdeen Proving Grounds, Aberdeen, Maryland, USA, 39°29′22.9″N 76°08′21.6″W / 39.489694, -76.139333.