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| Secondary Armament | |
| 150 mm-SK-C/28 Middle Turret | 150 mm-SK-C/28 End Turret |
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| View right side | View right side |
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| View from above | View from above |
| 150 mm-SK-C/28 (Secondary Armament) | |||
| Gun Characteristics | |||
| Designation | 150 mm/L55 (5,9") SK C/28 | ||
| Date of design | 1928 | ||
| Date in service | 1934 | ||
| No. of weapons installed | 12 | ||
| Locations | Allways in three double turrets, port and starboard | ||
| Gun weight | 9.080 kg (20.018 lbs) | ||
| Gun length oa | 8,200 m (323 in) | ||
| Length of bore | 7,816 m (307,7 in) | ||
| Number of grooves | 44 | ||
| Depth of grooves | 1,75 mm | ||
| Width of grooves | 6,14 mm | ||
| Length of rifling | 6,588 m (259 in) | ||
| Chamber volume | 21,7 dm³ (1,324 in³) | ||
| Rate of fire | 6 - 8 rounds per minute | ||
| Ammunition | |||
| Type | Cartridge - Separate | ||
| Projectile types and weights | AP - 45,3 kg (99,87 lbs) HE, nose fuzed - 45,3 kg (99,87 lbs.) HE, base fuzed - 45,3 kg ( 99,87 lbs.) Illum - 41 kg (90,4 lbs) |
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| Bursting charge | AP - N/A HE, nose fuze - 3,89 kg (8,6 lbs.) HE, base fuze - 3,06 kg (6,7 lbs.) |
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| Projectile length | AP - N/A HE, nose fuze - 65,5 cm (25,8 in) HE, base fuze - 67,9 cm (26,7 in) |
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| Propellant Charge | 14,15 kg (31,2 lbs.) RPC/38 Cartridge - 23,5 kg (51,8 lbs) |
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| Propellant charge | 14,15 kg (31,2 lbs) | ||
| Muzzle velocity | AP - 875 meters per second (2.871 feets per second) HE - 875 meters per second (2.871 feets per second) Illum - N/A |
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| Working pressure | 3.000 kg/cm² (19 tons/in²) | ||
| Approximate barrel life | 1.100 rounds | ||
| Ammunition Inventory | 1.800 rounds in total 105 rounds per gun (designed) |
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| Range | |||
| Elevation with 45,3 kg (99,87 lbs.) HE Shell | |||
| Range at 35° | 22.000 m (24.060 yards) | ||
| Range at 40° | 23.000 m (25.153 yards) | ||
| Mount/Turret Data | |||
| Weight | Twin Mounts: 116.250 kg (256.287 lbs.) including range finder 110.000 kg (242.500 lbs.) without range finder 108.000 kg (238.100 lbs.) without range finder and short barbette |
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| Elevation | -10°/+40° | ||
| Elevation rate | 8° per second | ||
| Train | About -80°/+80° | ||
| Train rate | 9° per second | ||
| Gun recoil | 37 cm (14,6 in) | ||
| Loading angle | About +3° | ||
| Technical Layout - Armament | ||
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| 150 mm-SK-C/28 (Secondary Armament) | ||