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TheContinental AV1790 is an AmericanV12 engine used inarmored vehicles. Produced byContinental Motors, the AV1790 was used in a variety of limited production and pilot heavy tanks, including theM53 and M55 howitzers, and theT30 andM103 tanks.
There were alsodiesel versions (AVDS,[1] Air Cooled, V-engine configuration, Diesel, Superturbocharged) for theM47,M48, andM60 Patton tanks, and the SwedishStridsvagn 104 (British-built Centurions, re-engined with diesel engines in the 1980s).
The engine prefixes are:
| Type: | 90 degreefour-strokeV12 |
|---|---|
| Bore: | 5.75 in (146.05 mm) |
| Stroke: | 5.75 in (146.05 mm) |
| Displacement: | 1791.7cu in (29 361cc) |
| Cooling: | forcedair cooling |
| AV-1790-3 | AV-1790-5C | AV-1790-7C | |
|---|---|---|---|
| Power output (gross) | 810 hp at 2800 rpm | 810 hp at 2800 rpm | 810 hp at 2800 rpm |
| Power output (net) | 704 hp (525 kW) at 2800 rpm | 650 hp (485 kW) at 2400 rpm | 690 hp (515 kW) at 2800 rpm |
| Torque (net): | 1,440 pound-feet (1,950 N⋅m) at 2200 rpm | 1,250 pound-feet (1,690 N⋅m) at 2100 rpm | 1,410 pound-feet (1,910 N⋅m) at 2200 rpm |
| BSFC | |||
| Power-to-weight ratio | |||
| Supercharger | no | ||
| Fuel system | carburetor | ||
| Fuel type | 80octanegasoline (petrol) | 80 octane gasoline | 80 octane gasoline |
| Ignition | magneto | ||
| Compression ratio | 6.5:1 | ||
| Dry weight | 2332 lb (1058 kg) | 2554 lb (1158 kg) | 2647 lb (1200 kg) |
| Designation | Weight, dry | Horsepower, gross | Horsepower, net | Torque, gross | Torque, net | Compression ratio | Induction turbocharged airflow | Fuel type | Fuel consumption (at 2400 RPM) | Use | Note |
|---|---|---|---|---|---|---|---|---|---|---|---|
| AVDS-1790-2A | 4,700 lb (2,100 kg) | 750 hp (560 kW) at 2,400 rpm | 643 hp (479 kW) at 2,400 rpm | 1,750 lb⋅ft (2,370 N⋅m) at 1,900 rpm | 1,575 lb⋅ft (2,135 N⋅m) at 1,750 rpm | 16:1 | 2075 cfm | DF-A, DF-1, DF-2 | 296 lbs / hour | M60, M60A1, M728, M60 AVLB, retrofitted to M47 & M48 | original series |
| AVDS-1790-2AC | for Centurion | ||||||||||
| AVDS-1790-2AR | M88 | ||||||||||
| AVDS-1790-2C[2] | 4,900pounds (2,200 kg) | M60A1, M60A3, M60 AVLB | |||||||||
| AVDS-1790-2D[3] | 4,880pounds (2,210 kg) | M60, M60A1, retrofitted to M48A3 & M48A5 | |||||||||
| AVDS-1790-2DR[4] | M88A1 | ||||||||||
| AVDS-1790-2CC | for Centurion | ||||||||||
| AVDS-1790-2DC | 4,876pounds (2,212 kg) | for Centurion | |||||||||
| AVDS-1790-5A | 4,900pounds (2,200 kg) | 908 hp (677 kW) at 2,400 rpm | 775 hp (578 kW) at 2,400 rpm | 2,150 lb⋅ft (2,920 N⋅m) at 2000 rpm | 14.5:1 | 2,200 cfm | 380 lbs / hour | Merkava Mk. I, Magach 7 | |||
| AVDS-1790-6A | Merkava Mk. II, Nakpadon | ||||||||||
| AVDS-1790-7A | 950 hp (710 kW) | Merkava Mk. II | |||||||||
| AVDS-1790-8A | 5,100pounds (2,300 kg) | 1,050 horsepower (780 kW) at 2,400 rpm | 892 hp (665 kW) at 2,400 rpm | 2,500 lb⋅ft (3,400 N⋅m) at 1,900 rpm | 2,450 cfm | 430 lbs / hour | |||||
| AVDS-1790-8CR | M88A2 | ||||||||||
| AVDS-1790-9A | 5,100pounds (2,300 kg) | 1,200 hp (890 kW) at 2,400 rpm | 1,000 hp (750 kW) at 2,400 rpm | 2,820 lb⋅ft (3,820 N⋅m) at 1,900 rpm | 2,800 cfm | 480 lbs / hour | |||||
| AVDS-1790-9AR | Merkava Mk. III | ||||||||||
| AVDS-1790 1500 | 5,000pounds (2,300 kg) | 1,500 hp (1,100 kW) at 2,600 rpm | 3,635 lb⋅ft (4,928 N⋅m) at 1,800 rpm | JP-8, DF-A, DF-1, DF-2 | 570 lbs / hour |
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