GC-45 howitzer
| GC-45 155 mm Howitzer | |
|---|---|
| Type | Howitzer | 
| Place of origin | Canada | 
| Service history | |
| In service | 1970s-present | 
| Used by | See users | 
| Wars | Iran–Iraq War, Gulf War, Cambodian–Thai border dispute | 
| Production history | |
| Designer | Gerald Bull | 
| Designed | 1970s | 
| Manufacturer | Space Research Corporation, Noricum, NORINCO | 
| Produced | 1980s-Present | 
| Variants | GHN-45, PLL01 | 
| Specifications | |
| Mass | 8,220 kg (18,120 lb) | 
| Barrel length | 6.98 meters | 
| Caliber | 155 mm (6.1 in.) | 
| Carriage | Split trail | 
| Elevation | -89 to 1,280 mils | 
| Traverse | Left 534 mils, Right 711 mils | 
| Rate of fire | maximum: 5 rpm sustained: 2 rpm | 
| Muzzle velocity | 897 metres per second (2,940 ft/s) | 
| Maximum firing range | 39.6 km (24.6 mi) with Base bleed | 
The GC-45 (Gun, Canada, 45-calibre) is a 155 mm howitzer designed by Gerald Bull's Space Research Corporation (SRC) in the 1970s. Versions were produced by a number of companies during the 1980s, notably in Austria and South Africa.
The most publicized use of the design was in Iraq, where the GHN-45 variant used by some Iraqi artillery units had a longer range than any coalition cannon systems. This initially caused considerable worry on the part of the allied forces in the Persian Gulf War.