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Restored Continental AV1790-5B tank engine at the American Armored Foundation Tank Museum in Danville, Virginia

The Continental AV1790 is an American V-12 engine used in tanks. Produced by Continental Motors, the AV1790 was used in a variety of limited production and pilot heavy tanks, including the M53 and M55 howitzers, and the T30 and M103 tanks. There were also diesel versions (AVDS, automotive vee engine diesel supercharged) for the M47, M48, and M60 Patton tanks, and the Swedish Stridsvagn 104.

Specifications[edit]

General characteristics
Type: 90 degree four-stroke V12
Bore: 5.75 in (146.05 mm)
Stroke: 5.75 in (146.05 mm)
Displacement: 1791.7 cu in (29.36 L)
Dry weight
AV-1790-3 2332 lb (1058 kg)
AV-1790-5C 2554 lb (1158 kg)
AV-1790-7C 2647 lb (1200 kg)
AVDS-1790-2A 4700 lb (2132 kg)
AVSI-1790-6 3050 lb (1383 kg)
AV-1790-3 AV-1790-5C AV-1790-7C AVDS-1790-2A AVDS-1790-5B AVSI-1790-6
Supercharger: no no no yes[1] twin turbocharger yes
Fuel system: fuel injection
Fuel type: 80 octane gasoline (petrol) 80 octane gasoline 80 octane gasoline 40 cetane diesel 80 octane gasoline
Ignition magneto magneto magneto compression magneto
Compression ratio: 6.5:1 6.5:1 6.5:1 16:1 5.5:1
Performance
Power output (net) Torque (net) Power output (gross) BSFC: Power-to-weight ratio
AV-1790-3 704 hp (525 kW) at 2800 rpm 1440 pound-feet at 2200 rpm 810 hp at 2800 rpm
AV-1790-5C 650 hp (485 kW) at 2400 rpm 1250 pound-feet at 2100 rpm 810 hp at 2800 rpm
AV-1790-7C 690 hp (515 kW) at 2800 rpm 1410 pound-feet at 2200 rpm 810 hp at 2800 rpm
AVDS-1790-2A 643 hp (480 kW) at 2400 rpm 1575 pound-feet at 1750 rpm 750 hp at 2400 rpm
AVSI-1790-6 765 hp (570 kW) at 2800 rpm 1670 pound-feet at 2100 rpm 980 hp at 2800 rpm

References[edit]

  1. ^ Hunnicutt, R.P. (1984). Patton: A History of the American MBT. Presidio. p. 440. 

Sources[edit]

  • Hunnicutt, R. P. Firepower: A History of the American Heavy Tank. Novato, California: Presidio Press, 1988. ISBN 0-89141-304-9

External links[edit]


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