| Year | July 1943 |
| Vehicle Type | [@type] |
| Origin & Designer | [@designer] |
| Numbers Produced | 2.507 |
| Crew | 5 (Commander, Gunner, Loader, Driver & Assistant Driver) |
| Main Armament | 1 x 76mm L/55 M1A1 or M3 Gun |
| Main Armament | [@sponson_traverse] |
| Elevation | -10° to +20° |
| Turret Traverse | 360° (Powered) |
| Gun Traverse | [@gun_traverse] |
| Gun Mount | [@gun_mounts] |
| Maximum Range | [@maximum_range] |
| Armour Penetration | [@armour_penetration] |
| Gun Sight | 6.65m |
| Secondary Armament | 1 x .50 cal M2HB Heavy Machine Gun (AA Mount) |
| Smoke Discharger | [@smoke_discharger] |
| Ammunition Carried | Ammunition Carried: 45 x 76mm & 800 x .50 cal |
| Height | 2.57m |
| Width | 2.87m |
| Length | 6.65m |
| Combat Weight | 18.000 kg |
| Ground Clearance | 0.36m |
| Fording Depth | 1.22m |
| Trench Crossing | 1.86m |
| Obstacle Clearance | 0.91m |
| Climbing Ability | 31° |
| Radio | SCR 610 |
| Armour | Upper Hull Front: 12mm. Lower Hull Front: 12mm. Upper Hull Sides: 12mm. Lower Hull Sides: 12mm. Hull Rear: 12mm. Hull Top: 25mm. Hull Bottom: 8mm. Gun Mantlet: 19mm. Turret Front: 25mm. Turret Sides: 12mm. Turret Rear: 12mm. Turret Top: Open. |
| Engine | Continental R-975 C4 (Petrol) |
| Transmission | 3 Forward & 1 Reverse |
| Maximum Road Range | 149 miles (240 km) |
| Maximum Cross Country Range | 93 miles (150 km) |
| Maximum Water Range | [@maximum_water_range] |
| Maximum Road Speed | 50 mph (80 kph) |
| Maximum Cross Country Speed | 20 mph (32 kph) |
| Maximum Water Speed | [@maximum_water_speed] |
| Variants | [@variants] |
| Notes | Designed to be a fast hard hitting Tank Destroyer, the M18 had the combination of good speed and high velocity gun, the chassis was specially developed and the gun was the 76mm M1A2. To achieve high speeds the M18 was lightly armoured. Like all US tank destroyer the turret was opened topped and this kept down the weight. The M18 was built for scoot and shoot tactics rather than standing toe to toe with enemy armour, the 76mm gun was adequate especially if issued with HVAP rounds which gave it better armoured penetration. The M18 served on every fronts. |