Daimler-Benz DB 603
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The Daimler-Benz DB 603 engine was a German aircraft engine used during World War 2. It was a liquid-cooled in-line 12 cylinder inverted V12 enlargement of the DB 601, which was in itself a development of the DB 600.
The DB 603 powered several aircraft, including the Do 217 N&M, Do 335, He 219, Me 410 and Ta 152C.
Interesting to note that the Mercedes T80 land speed record car designed by aircraft engineer Josef Mickl, assignor by Ferdinand Porsche, with help from German racing driver Hans Stuck incorporated the third prototype DB 603 in the T-80. It ran off pure alcohol with MW injection and was tuned to 3,000 hp enough, it was believed, to propel the aerodynamic three-axle T80 up to 750 km/h on the Dessau autobahn in January 1940 during RekordWoche (Record/Speed Week). But due to the outbreak of the war in September 1939, the T80 (nicknamed Schwarz Vogel/Black Bird) never raced. The DB 603 engine was removed from the vehicle for use in fighter aircraft.
[edit] Variants
[edit] Production versions
- DB 603A, rated altitude of 5.7 km, B4 fuel
- Power (max): 1290 kW (1750 HP) at 2700 rpm at sea level
- Combat power: 1165 kW (1580 HP) at 2500 rpm at sea level
- DB 603AA DB 603A with rated altitude of 7.3 km, B4 fuel
- Power (max): 1231 kW (1670 HP) at 2700 rpm at sea level
- Combat power: 1165 kW (1580 HP) at 2500 rpm at sea level
- DB 603E rated altitude of 7.0 km, B4 fuel
- Power (max): 1327 kW (1800 HP) at 2700 rpm at sea level
- Combat power: 1161 kW (1575 HP) at 2500 rpm at sea level
[edit] Prototypes and other versions
- DB 603G (production cancelled)
- Power (max): 1395 kW (1900 HP) at 2700 rpm at sea level
- Combat power:1145 kW (1560 HP) at 2700 rpm at sea level
- DB 603L/LA (prototype with two-stage supercharger, B4 fuel)
- Power (max): 1470 kW (2000 HP)
- DB 603N (prototype with two-stage supercharger, C3 fuel)
- Power (max): 2060 kW (2800 HP) at 3000 rpm at sea level
- Continuous: 1420 kW (1930 HP) at 2700 rpm at sea level
- DB 603S (DB 603A with experimental TK-11 turbo-supercharger)
- Power (max): ????
[edit] Specifications (DB 603A)
General characteristics
- Type: 12-cylinder liquid-cooled supercharged inverted Vee aircraft piston engine
- Bore: 162 mm (6.38 in)
- Stroke: 180 mm (7.09 in)
- Displacement: 44.5 L (2,715 in³)
- Length: 2610.5 mm (102.8 in)
- Diameter: 830 mm (32.7 in)
- Dry weight: 920 kg (2,030 lb)
Components
- Supercharger: Gear-driven centrifugal type supercharger
- Fuel system: Direct fuel injection
- Cooling system: pressurized water cooling
Performance
- Power output:
- 1,290 kW (1,750 hp) for takeoff
- 1,190 kW (1,510 hp) maximum continuous
- Specific power: 26.7 kW/L (0.59 hp/in³)
- Compression ratio: 7.5:1 left block, 7.3:1 right block
- Specific fuel consumption: 0.288 kg/(kW·h) (0.474 lb/(hp·h))
- Power-to-weight ratio: 1.29 kW/kg (0.79 hp/lb)
