BMW 132
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The BMW 132 was a nine-cylinder radial aircraft engine produced by BMW starting in 1933.
BMW took over the license for manufacturing air-cooled radial engines from US aircraft manufacturer Pratt & Whitney Aircraft Company on 3 January 1928. The nine-cylinder model Pratt & Whitney Hornet was initially manufactured virtually unchanged under the designation BMW Hornet. Soon BMW embarked on its own development. The result was the BMW 132 that went into production in 1933, which was essentially an improved version of the Hornet engine. A number of different versions were built. Aside from the carburettor designs used mainly in civilian aircraft, versions with direct fuel injection were manufactured for the German Luftwaffe. The engines had a displacement of 27.7 liters and generated up to 1200 bhp, depending on model.
The 132 found widespread use in the transport role, remaining the primary powerplant of the Junkers Ju 52 for much of its life, turning the BMW 132 into one of the most important aeroengines for civilian aircraft during the 1930s.
Numerous pioneering flights were undertaken with the BMW 132. The most impressive was the first direct flight from Berlin to New York in a Fw 200 S-1 Condor equipped with four BMW 132 engines. It covered the distance to New York in 24 hours and 57 minutes on 10 August 1938.
[edit] Specifications (BMW 132N)
General characteristics
- Type: 9-cylinder supercharged air-cooled radial engine
- Bore: 155.5 mm (6.1 in)
- Stroke: 162 mm (6.4 in)
- Displacement: 27.7 L (1,690 in³)
- Length: 1,256 mm (49.4 in)
- Diameter: 1,372 mm (54.0 in)
- Dry weight: 525 kg (1,157 lb)
Components
- Supercharger: Single-speed with direct fuel injection
- Cooling system: Air-cooled
Performance
- Power output:
- 645 kW (865 hp) at sea level
- 716 kW (960 hp) at 3,000 m (9,850 ft) at 2,450 rpm
- Specific power: 25.8 kW/L (0.57 hp/in³)
- Compression ratio: 6.93:1
- Specific fuel consumption: 0.33 kg/(kW·h) (0.54 lb/(hp·h))
- Power-to-weight ratio: 1.36 kW/kg (0.83 hp/lb)
[edit] Applications
- Arado Ar 196
- Arado Ar 197
- Blohm & Voss BV 141
- Heinkel He 114
- Heinkel He 115
- Henschel Hs 123
- Junkers Ju 160
- Junkers Ju 52
- Junkers Ju 86
- Junkers W34
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