28 cm SK C/28 gun

• Name — 28 cm SK C/28 • Origin — Weimar Republic • Type — Naval gun • Is Artillery — yes • Service — 1930-1945 • Used By — Reichsmarine Kriegsmarine • Wars — World War II • Design Date — 1928 • Weight — 48.2 t • Length — 14.815 m • Part Length — 13.9 m (bore length) • Caliber — 283 mm • Rate — 2.5 RPM • Velocity — 910 m/s • Max Range — 36475 m at 40° • Elevation — -10° to +40°

28 cm SK C/28 naval gun were used on the famous Panzerschiffes - Lützow (ex-Deutschland), Admiral Scheer and Admiral Graf Spee. For needed elevation turrets were fitted with RPC. Shells used in the guns were of inferior ballistic characteristics when compared to successor 28 cm SK C/34.

Characteristics of SK C/28 and the later SK C/34 283 mm shells are in the table below: • Gun type — Shell type — Length(calibers) — Total weight • SK C/28 — Armor-piercing — 3.7 — 300 kg • Semi-armor-piercing — 4.2 — 300 kg • Igniting — 4.2 — 300 kg • SK C/34 — Armor-piercing — 4.4 — 336 kg • Semi-armorpiercing — 4.4 — 316 kg • Igniting — 4.5 — 315 kg Performance of the SK C/28 at different ranges, firing a 300 kg armour-piercing projectile: • Distance — 5000 m — 10000 m — 15000 m — 20000 m — 25000 m — 30000 m — 35000 m — 36475 m • Shooting angle[deg] — 1.9 — 4.5 — 8.0 — 12.5 — 18.6 — 26.3 — 36.4 — 40.0 • Shell hitting angle[deg] — 2.4 — 6.0 — 11.8 — 21.4 — 34.2 — 46.4 — 56.0 — - • Shell velocity at target — 752 m/s — 611 m/s — 493 m/s — 407 m/s — 360 m/s — 353 m/s —? — -