Haubits FH77
Fälthaubits 77 (transl. Field Howitzer 77) or FH77 is a Swedish 155 mm howitzer, developed and manufactured by Bofors. It is also colloquially known as the Bofors gun in India. There were several versions, the original (sometimes referred to as Haubits 77 A) with a 38 calibre barrel and sliding block mechanism, the export version FH77 B version with a 39 calibre barrel and an interrupted ogival screw breech. For the demonstrator of the Archer Artillery System, some FH77A were modified into FH 77 AD L/45, while the series production were FH77Bs rebuilt into FH77 BW L/52. The carriage was also used for the KARIN, used in the Swedish coastal artillery.
| Haubits FH77/A | |
|---|---|
The Haubits FH77/A | |
| Type | Howitzer |
| Place of origin | Sweden |
| Service history | |
| In service | 1978 – present |
| Used by | Operators |
| Production history | |
| Designer | Bofors |
| Designed | 1978 |
| Manufacturer | Bofors |
| Unit cost | $695,000 (1986) |
| Produced | 1978–1984 |
| No. built | 720 |
| Variants | See Variants |
| Specifications | |
| Mass | 11,500 kg (25,400 lb) |
| Length | Combat: 11.60 m (38 ft 1 in) |
| Barrel length | 5.89 m (19 ft 4 in) L/38 |
| Width | Combat: 9.73 m (31 ft 11 in) |
| Crew | 9 to 14 |
| Shell | 155 mm NATO |
| Caliber | 155 mm |
| Action | semi-fixed ammunition, propellant charge is contained in a plastic cartridge case with a steel head |
| Breech | Vertically sliding breech block, hydraulic ramming |
| Carriage | split trail with castor wheels |
| Elevation | -5°/+70° |
| Traverse | 30° left or right from centreline |
| Rate of fire | 4 rounds in 9 seconds, 6 rounds in 25 seconds, sustained 3 revolutions per minute for 20 minutes |
| Muzzle velocity | 300 to 770 m/s (980 to 2,530 ft/s) |
| Effective firing range | 21 km (13 mi) |
| Maximum firing range | 24 km (15 mi) (with base bleed-round) 60 km+ (using Ramjet Propelled Artillery Shell, under development) |
| Feed system | hydraulically powered flick rammer assisted loading |
| Engine | Volvo B20 APU |
| Maximum speed | 6 km/h |
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