13-in/35 Mark 1 Gun (US)

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13-in/35 Gun (US)
History
First Year In Service: 1895
Total Built: 34
Last Year In Service: 1920
Specifications
Calibre: 13-in/35
Gun Weight: 128,000 lbs
Weight (with breech): 129,900 lbs
Length Overall: 479.10 inches / 36.8 Calibres
Bore Length: 460.60 inches / 35.4 Calibres
Length of Rifling: 370.57 inches / 28.5 Calibres
Diameter Over Chamber: 49.0 Inches
Chamber Volume: 14,725 cubic inches
Maximum Pressure: 16 tons/square inch
Rifling: Twist: 0 to 1/25

Depth: 0.05 inches
Width: 0.4847 inches decreasing to 0.4147 inches at muzzle

Shell: 1,130 lbs
Charge: 180 lbs smokeless powder
Muzzle Velocity: 2,000 feet/second

History

The first 13-in/35 gun was completed in July of 1895 and was installed on the U.S.S. Indiana. Eventually the gun was installed in eight different battleships.[1]

The last of the battleships with the 13-in/35 gun was decommissioned in 1920.

Characteristics

Ballistic Characteristics [2]
Penetration: 25 inches at the muzzle

20 inches at 2,500 yards

Danger Space: 1,000 yards at 1,000 yards

215 yards at 2,500 yards

Maximum Elevation (all mounts): 15 degrees
Maximum Range: 12,100 yards
Firing Cycle (all mounts): 320 seconds

Gun Construction [3]

Mark 1

The 13-in/35 Mark 1 gun was constructed of a tube, jacket, seven hoops, and two locking rings. The gun was fastened to the slide by three integral strap bands.

Mark 1 Mod 1

The Mark 1 Mod 1 gun was a rebuilt Mark 1 gun with new gun-steel parts and a slightly different sized chamber.

Mark 1 Mod 2

This was a Mark 1 gun with a nickel-steel liner.

Mark 2

The 13-in/35 Mark 2 gun was constructed of a tube, jacket, eight hoops, one locking hoop, and two locking straps.

Mark 2 Mod 1

The Mark 2 Mod 1 gun was a rebuilt Mark 2 gun with new gun-steel parts and a slightly different sized chamber.

Mark 2 Mod 2

This was a Mark 2 gun with a nickel-steel liner.

Mark 2 Mod 3

This was a Mark 2 gun with an new enlarged chamber.


Ships Utilizing the 13-in/35 Gun [4]

Ship Gun Mount
U.S.S. Indiana Mark 1 Mark 2
U.S.S. Massachusetts
U.S.S. Oregon
U.S.S. Kearsarge
U.S.S. Kentucky
U.S.S. Illinois
U.S.S. Alabama
U.S.S. Wisconsin

See Also

Footnotes

  1. Friedman,Naval Weapons of World War I, p. 166.
  2. Friedman,Naval Weapons of World War I, p. 166-167.
  3. Friedman,Naval Weapons of World War I, p. 166.
  4. Friedman,Naval Weapons of World War I, p. 166.

Bibliography