7.7 cm FlaK L/35

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7.7 cm FlaK L/35
Wiki Loves Art - Bruxelles - Musee royal de l'armee et de l'histoire militaire - interieur (10) (cropped).jpg
A Krupp 7.7 cm FlaK L/35 AA gun at the Musée Royal de l'Armée, Brussels.
Type Anti-aircraft gun
Place of originFlag of the German Empire.svg  German Empire
Service history
In service1914–1918
Used byFlag of the German Empire.svg  German Empire
Wars World War I
Production history
Designer Schneider et Cie
Designed1897
Manufacturer Krupp
Produced1914
No. built394
Specifications
MassTravel: 2,050 kg (4,520 lb)
Combat: 1,250 kg (2,760 lb)
Barrel  length2.7 m (8 ft 10 in) L/35 [1]

Shell Fixed QF
Shell weight6.85 kg (15 lb 2 oz)
Caliber 77 mm (3.0 in)
Breech Nordenfelt eccentric screw
Recoil Hydro-pneumatic
Carriage Box trail
Elevation +1° to +60° [1]
Traverse 360°
Rate of fire 12 rpm
Muzzle velocity 487 m/s (1,600 ft/s)
Effective firing rangeHorizontal: 7.2 km (4.5 mi)
Vertical: 4,000 m (13,000 ft) [1]

The 7.7 cm FlaK L/35 was a German 77 mm anti-aircraft gun produced by Krupp during the First World War.

Contents

History

The origins of the 7.7 cm FlaK L/35 go back to the French Canon de 75 modèle 1897 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 M1897's to their troops as replacements.

These included:

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obsolete types such as the 9 cm Kanone C/73 and captured guns such as the M1897 and 76 mm divisional gun M1902 were withdrawn from front-line service and issued to anti-aircraft units.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]

Design

The 7.7 cm Flak L/35 was a conversion of captured M1897's that were bored out to fire German 7.7 cm ammunition and placed on high angle mounts for the anti-aircraft role. When the barrels became worn out they were replaced with German made ones of the same length without the distinctive muzzle roller guides of the French gun. [2] The first of these conversions were from Krupp. It consisted of mounting bored out barrels on modified de Bange 120 or 155 carriages to allow up to 60° of elevation. In the field, the guns were anchored to a firing ring to allow 360° of traverse. By Spring of 1916, every division had a two gun platoon for AA defense and 394 guns were converted. [1]

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References

  1. 1 2 3 4 5 6 Fleischer, Wolfgang (February 2015). German Artillery:1914-1918. Barnsley. p. 88. ISBN   9781473823983. OCLC   893163385.
  2. "7.7cm L/35 Flak Kanone (franz.)". www.passioncompassion1418.com. Retrieved 2 October 2018.