5"/38 Mark 38
Gun
5"/38 caliber Mark 12
Date Of Design: ~ 1932
Gun Weight: 3,990 lbs without breech
Gun Length oa: 223.8 in
Bore Length: 190 in
Number Of Grooves: 45
Length Of Rifling: 157.2 in
Chamber Volume: 654 in3
Rate Of Fire: 15 - 20 rounds per minute
Ammunition
Type: Semi-fixed
Projectile Types and Weights:AP - 54 lbs.,AAC Marks 35 and 49 - 55.18 lbs.,AAVT Marks 35 and 49 - 54.61 lbs.,HC Marks 35 and 49 - 54.3 lbs.,WP- 54.39 lbs.,
,Common Marks 38 and 46 - 55.18 lbs.
Bursting Charge: AAC - 7.6 lbs.,AAVT - 7.9 lbs., Common - 2 lbs., HC - 7.6 lbs.
Projectile Length: 20.75 in
Propellant Charge: Flashless: 15.5 lbs., non-flashless: 15.4 lbs.
Muzzle Velocity: New gun: 2,600 fps , Average gun: 2,500 fps
Working Pressure: 18.0 tons/in2
Approximate Barrel Life: 4,600 rounds
Ammunition stowage per gun: Gearing class=360
Mount / Turret Data
Twin Enclosed Mounts: Mark 38
Weight: 95,700 lbs.
Elevation: -15 /+85 degrees
Elevation Rate: 15 degrees per second
Train: ~ +120 / -120 degrees
Train Rate: 25 degrees per second
Loading Angle: Any
Gun recoil: 19in
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Assistant Curator, Battleship Cove
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