Mitrailleuse d'Avion Browning - F.N. Calibre 13,2 mm
| Mitrailleuse d'Avion Browning - F.N. Calibre 13,2 mm 13.2 mm FN Browning | |
|---|---|
Swedish 13.2 mm automatkanon m/39A | |
| Type | Aircraft ordnance: 1. – machine gun 2. – shell-firing gun 3. – autocannon |
| Place of origin | Belgium |
| Service history | |
| In service | Swedish Air Force 1939–1957: Frontline 1951–2007: Exercise |
| Used by | Sweden Romania Finland |
| Wars | World War II |
| Production history | |
| Designed | 1938 |
| Manufacturer | FN Herstal L.M.E. |
| Produced | 1939 – c. 1946 |
| Variants | See Variants |
| Specifications | |
| Mass | Cannon weight: 24.3 kg (54 lb) Barrel weight: 3.3 kg (7.3 lb) Link weight: 0.017 kg (0.037 lb) |
| Length | 1,415 mm (55.7 in) (1,450 mm (57 in) with flash hider) |
| Barrel length | 816.5 mm (32.15 in) (919 mm (36.2 in) with flash hider) |
| Cartridge | 13.2×99mm Hotchkiss 12.7×99mm Browning |
| Cartridge weight | on average 120 g (0.26 lb) (13.2 x 99 Hotchkiss) |
| Caliber | 13.2 mm (0.52 in) (original) 12.7 mm (0.50 in) (later) |
| Barrels | The barrel had eight constantly rising grooves going right. 400 mm (16 in)/revolution Groove depth was 0.16 mm (0.0063 in) |
| Action | Short-recoil operated, Electrical Solenoid fired |
| Rate of fire | 1 080 rpm (standard) 600 rpm (lowest) 1 500 rpm (highest) |
| Muzzle velocity | 810–900 m/s (13.2 x 99 Hotchkiss) |
| Effective firing range | Tracer to 1,000 m (1,100 yd) |
| Maximum firing range | c. 7,000 m (7,700 yd) |
| Feed system | Belt fed (able to feed from both left and right) |
| Sights | Reflexsikte m/37 (Saab 18 & 21) Reflexsikte m/42B (FFVS J 22) Gyroreflexsikte K-14 (Saab 21A-3) |
| References | |
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Browning Aircraft Machine Gun - F.N. Caliber 13.2 mm (French: Mitrailleuse d'Avion Browning - F.N. Calibre 13,2 mm), more commonly known as the 13.2 mm FN Browning, but also 13.2 mm Browning-F.N., F.N. Caliber 13.2 mm, FN Browning M.1939 and the like, was a 13.2 mm (0.52 in) caliber, shell-firing, heavy machine gun for aircraft use, designed by Fabrique Nationale (FN) in Herstal, Belgium, as a private export venture during the final years prior to World War II.
Even though it gained great interest during its limited time on the export market, it only managed to be exported to the air forces of Romania and Sweden prior to the German invasion of Belgium in 1940, later also being pirate produced in Finland with the help from Sweden.