7.62 cm FlaK L/30
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| 7.62 cm FlaK L/30 | |
|---|---|
 A Krupp 7.62 cm FlaK L/30 AA gun at the Gunfire Museum Brasschaat. | |
| Type | Anti-aircraft gun |
| Place of origin |  Russian Empire |
| Service history | |
| In service | 1914–1918 |
| Used by |  German Empire |
| Wars | World War I |
| Production history | |
| Designer | Putilov |
| Designed | 1902 |
| Manufacturer | Krupp |
| Produced | 1914 |
| No. built | 120 |
| Specifications | |
| Mass | Travel: 2,440 kg (5,380 lb) Combat: 1,350 kg (2,980 lb) |
| Barrel length | 2.28 m (7 ft 6 in) L/30[1] |
| Shell | Fixed QF 76.2 x 385mm R[2] |
| Shell weight | 7.5 kg (16 lb 9 oz) |
| Caliber | 76.2 mm (3.00 in) |
| Breech | Interrupted screw |
| Recoil | Hydro-pneumatic |
| Carriage | Box trail |
| Elevation | +12° to +70°[1] |
| Traverse | 360° |
| Rate of fire | 12 rpm |
| Muzzle velocity | 588 m/s (1,930 ft/s) |
| Effective firing range | Horizontal: 8.5 km (5.3 mi) Vertical: 5,600 m (18,400 ft)[1] |
The 7.62 cm FlaK L/30 was a German 76.2 mm anti-aircraft gun produced by Krupp during the First World War.
The origins of the 7.62 cm FlaK L/30 go back to the Russian 76 mm divisional gun M1902 field gun which was captured in large numbers during the first two years of World War I. A combination of factors led the Germans to issue M1902's to their troops as replacements.
These included:
- An underestimation of light field artillery losses during the first two years of the war and an inadequate number of replacement guns being produced.
- An underestimation of ammunition consumption, inadequate production capacity, and resulting shortages.
- The superior ballistic performance of the M1902 compared to German designs.[1]
Once adequate numbers of new field guns such as the 7.7 cm FK 16 were being produced obsolete types such as the 9 cm Kanone C/73 and captured guns such as the M1902 and Canon de 75 modèle 1897 were withdrawn from front-line service and issued to anti-aircraft units. At first, all of the combatants employed field guns on improvised anti-aircraft mounts, which were typically earthen embankments or scaffolds to get the muzzle pointed skyward. Later in the war, specialized anti-aircraft mounts were developed.[1]
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