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本帖最后由 巴掌 于 2010-12-3 16:10 编辑
Designation | 330 mm/50 (13") Model 1931 | Ship Class Used On | Dunkerque Class | Date Of Design | 1931 | Date In Service | 1939 | Gun Weight | 155,503 lbs (70,535 kg) | Gun Length oa | 676.0 in (17.170 m) | Bore Length | 655.3 in (16.645 m) | Rifling Length | 548.8 in (13.940 m) | Grooves | (80) 0.126 in deep x 0.304 in (?) (3.2 mm x 7.73 mm) | Lands | 0.205 in (?) (5.2 mm) | Twist | Uniform RH 1 in 25.57 | Chamber Volume | 17,880 in3 (293 dm3) | Rate Of Fire | 1.5 - 2 rounds per minute | Note: The intended rate of fire was 3 rounds per minute. However, the shell supply arrangements in the shell rooms proved to be inadequate and the designed ROF was never met. |
[size=+1]. Type | Bag | Projectile Types and Weights | APC - 1,235 lbs. (560 kg)
HE - 1,151 lbs. (552 kg) | Bursting Charge | APC - 44.7 lbs. (20.3 kg)
HE - 140 lbs. (63.5 kg) | Projectile Length | about 65 in (165 cm) | Propellant Charge | 423 lbs. (192 kg) SD19 | Muzzle Velocity | APC - 2,854 fps (870 mps)
HE - 2,904 fps (885 mps) | Working Pressure | 20.3 tons/in2 (3,200 kg/cm2) | Approximate Barrel Life | 250 rounds | Ammunition stowage per gun | about 100 rounds | Notes: 1) Propellant charges were in quarters.
2) Aircraft AP bomb weighed 1,235 lbs. (560 kg) and was designated as M1939.
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Range | Side Armor | Deck Armor | 0 yards (0 m) | 28.08" (713 mm) | -- | 25,153 yards (23,000 m) | 13.46" (342 mm) | 3.47" (105 mm) | 30,114 yards (27,500 m) | 11.48" (292 mm) | 4.32" (110 mm) | Note: This data is from "Battleships: Allied Battleships in World War II" for a muzzle velocity of 2,854 fps (870 mps) and is based upon the USN Empirical Formula for Armor Penetration. |
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