24 cm Kanone 3
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| 24 cm Kanone 3 | |
|---|---|
 A K 3 in the Wehrtechnische Studiensammlung Koblenz | |
| Type | Heavy Siege Gun |
| Place of origin | Germany |
| Service history | |
| In service | 1939–45 |
| Used by | Nazi Germany |
| Wars | World War II |
| Production history | |
| Designer | Rheinmetall |
| Designed | 1935–38 |
| Manufacturer | Krupp |
| Produced | 1938–44 |
| No. built | 14+ |
| Specifications | |
| Mass | 54,866 kg (120,959 lb) |
| Barrel length | 13.102 m (40 ft) |
| Shell weight | 151.4 kg (334 lb) (HE) |
| Caliber | 238 millimetres (9.4 in) |
| Breech | horizontal sliding-block |
| Recoil | dual-recoil hydro-pneumatic |
| Carriage | Box trail |
| Elevation | 0° to +56° |
| Traverse | 6° on carriage 360° on platform |
| Rate of fire | 1 rd per 4–5 min |
| Muzzle velocity | 970 m/s (3,182 ft/s) |
| Maximum firing range | 37 km (23 mi) |
The 24-cm-Kanone 3 (24 cm K 3) was a German heavy siege gun used in the Second World War by the first battalion of Artillerie-Regiment 84. Four were in service when Germany invaded Poland, assigned to the first two batteries of I./AR 84,[1] and in the Battle of France.[2] After the Battle of France, a third battery with two additional guns was formed. With six guns, the battalion was designated to provide artillery support for the planned invasion of England (Operation Sea Lion).[3] By Operation Barbarossa all three batteries were equipped with two guns apiece.[4] This situation did not change for the next two years.[5]
