25 mm Hotchkiss anti-aircraft gun
The Hotchkiss 25 mm anti-aircraft gun was an anti-aircraft autocannon designed by the French firm of Hotchkiss. It served in World War II with French, Japanese and other nations' forces. Other than the designer company and the calibre, this weapon is not related to the semi-automatic 25 mm Hotchkiss anti-tank gun; in particular, the cartridge used is different.
| mitrailleuse de 25 mm CA mle 39 | |
|---|---|
Preserved 25 CA 39 at Musée des Blindés | |
| Type | Anti-Aircraft/Autocannon |
| Place of origin | France |
| Service history | |
| Wars | Second World War |
| Production history | |
| Designer | Hotchkiss et Cie |
| Specifications | |
| Mass | 850 kg (1,870 lb) |
| Barrel length | 1.5 m (4 ft 11 in) L/60 |
| Crew | 9 |
| Shell | 25 x 163 mm HE: .29 kg (10 oz) AP: .32 kg (11 oz) |
| Caliber | 25 mm (.98 in) |
| Action | gas operated |
| Carriage | Two wheeled single axle with cruciform outriggers |
| Elevation | -10° to +85° |
| Traverse | 360° |
| Rate of fire | Cyclic: 200–260 rpm Effective: 110 rpm |
| Muzzle velocity | HE: 900 m/s (2,953 ft/s) AP: 875 m/s (2,870 ft/s) |
| Effective firing range | 6.8 km (4.2 mi) at 45° with HE shell |
| Maximum firing range | 3 km (9,800 ft) (effective) 5.5 km (18,000 ft) (ceiling) |
| Feed system | 15-round box magazine |
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