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Heavy Anti-Aircraft
105 mm-SK-C/37
View from above View right side View from fore View from aft

105 mm-SK-C/37 (Heavy Anti-Aircraft)
Gun Characteristics
Designation 105 mm/L65 (4,1") caliber SK C/37
Date of design 1937
Date in service 1939
No. of weapons installed 8 on Bismarck
16 on Tirpitz (until August 1941 only 12)
Locations Bismarck:
8 in four aft double mounts (Dop. L. C/37)
Tirpitz:
Until August 1941, 12 guns in six forward double mounts (Dop. L. C/37). From August 1941, 16 guns in eight double mounts.
Gun weight 4.560 kg (10.053 lbs.)
Gun length oa 6,84 m (269 in)
Length of bore 6,348 m (249,9 in)
Number of grooves 36
Length of rifling 5,531 m (217,8 in)
Chamber volume 7,31 dm³ (446 in³)
Rate of fire 15 rounds per gun per minute
Ammunition
Type Cartridge - Fixed
Weight of complete round 27,35 kg (60,3 lbs)
Projectile types and weights AP - 15,8 kg (34,8lbs)
HE - 15,1 kg (33,3 lbs)
HE - Incendiary - 15.8 kg (34,8 lbs)
Illum - 14,7 kg (32,4 lbs)
Bursting charge NA
Projectile length N/A - complete round 116,4 cm (45,83 in)
Propellant charge 6,05 kg (13,34 lbs)
Muzzle velocity AP - N/A
HE - 900 meters per second (2.952 feets per second)
Illum - 650 meters per second (2.133 feets per second)
Working pressure 2.850 kg/cm² (18 tons/in²)
Approximate barrel life 2.950 rounds
Ammunition Inventory 6.720 rounds in total
400 rounds per gun (designed)
Range
Elevation with 15,1 kg (33,3 lbs) HE Shell
Range at 45° 17.700 m (19.357 yards)
AA ceiling at 80° 12.500 m (41.010 feet)
Mount/Turret Data
Weight 27.055 kg (59.646 lbs)
Elevation -10°/+80°
Elevation rate 12° per second
Train 360°
Train rate 8.5° per second
Cross leveling -17°/+17°
Cross leveling rate 8° per second



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