Zvezda M503
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The Zvezda M503 (built at AO Zvezda at St Petersburg) is a maritime 7 bank, 42 cylinder diesel radial engine built in the 1970s by the Soviet Union. Its primary use was in Soviet missile boats that used three of these engines.
This engine may have had other applications, but due to its extreme weight (Script error: No such module "convert".), it would have been limited to ground or naval applications.
A German tractor pulling team designed a vehicle, named "Dragon Fire", around a methanol-fueled version of this engine;[1] this modified[2] engine is said to weigh Script error: No such module "convert". including the gearbox, for use in the 4.5 ton tractor pulling class, making Script error: No such module "convert". at 2,500 rpm.
Specifications (Zvezda M503A)
General characteristics
- Type: 42-cylinder liquid-cooled,
six-cylinder-per-bank seven-bank, diesel radial engine - Bore: Script error: No such module "convert".
- Stroke: Script error: No such module "convert".
- Displacement: Script error: No such module "convert".
- Length: Script error: No such module "convert".
- Diameter: Script error: No such module "convert".
- Dry weight: Script error: No such module "convert".
Components
- Valvetrain: 7 overhead cam shafts,
one per bank (SOHC). - Fuel type: Diesel fuel
- Cooling system: Liquid-cooled
Performance
- Power output: Script error: No such module "convert".
at 2,200 rpm - Specific power: Script error: No such module "convert".
- Power-to-weight ratio: Script error: No such module "convert".
Zvezda engines
- Zvezda M503, M533, M520 B
- Zvezda M504 56 cylinders
- Zvezda M401 V12 marine turbodiesel engine
- Zvezda M150 Pulsar V12 800 kW < 1,8 - 3 MW
- ZE1600KZ ZE Energetika 4,8 MW V8 V12 < 3 - 5 or 7 MW
- Zvezda M507 2 × 56 = 112 cylinders
- Zvezda M501
- ADG1000 ADG6000, 68B 68G, 85D 86B 86G at KMZ - RD and UDMZ
- TM-300 inline 6 (460 hp 200 350 kW) [3] or 8
- various V12 V16 and V18 from 3 5 MW 58D/A/E up to 8 9 MW
- 68B, 68G, 85D 86B 86G 8,8 MW V18
Comparable engines
References
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