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The BMW 132 was a nine-cylinder radial aircraft engine produced by BMW starting in 1933.

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BMW 132
Preserved BMW 132 at the BMW Museum
Type	Radial engine
National origin	Germany
Manufacturer	BMW
First run	1933
Major applications	Junkers Ju 52
Number built	>21,000
Developed from	Pratt & Whitney R-1690 Hornet
Developed into	BMW 114

Design and development

BMW took over a license for manufacturing air-cooled radial engines from Pratt & Whitney on 3 January 1928. The nine-cylinder model Pratt & Whitney R-1690 Hornet was initially manufactured virtually unchanged under the designation BMW Hornet.

Soon BMW embarked on its own development. The result was the BMW 132, essentially an improved version of the Hornet engine, that went into production in 1933. A number of different versions were built; aside from the carburetor 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 L (1,690 cu in) and generated up to 1,065 PS (1,050 hp; 783 kW) 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 aircraft engines 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 four-engined Focke-Wulf 200 S-1 Condor. It covered the distance to New York in 24 hours and 57 minutes on 10 August 1938.

Variants

132A

725 PS (715 hp, 533 kW)

132Dc

850 PS (838 hp, 625 kW)

132De

880 PS (868 hp, 647 kW)

132J/K

960 PS (947 hp, 706 kW) with higher rpm

132N

865 PS (853 hp, 636 kW)

132T

730 PS (720 hp, 537 kW)

132W

1065 PS (1050 hp, 783 kW)

ENMA Beta B-4 (Spanish license-built version)

(9E-C29-775) 785 PS (774 hp; 577 kW) (stroke 174.6 mm (6.87 in), displacement 29.85 l (1,822 cu in))[1]

Applications

• Arado Ar 196
• Arado Ar 197
• Blohm & Voss Ha 140
• Blohm & Voss BV 141
• Blohm & Voss BV 142
• Dornier Do 17P
• Fieseler Fi 98
• Focke-Wulf Fw 200 Condor
• Heinkel He 114
• Heinkel He 115
• Henschel Hs 123
• IAR 38
• Junkers W 34
• Junkers Ju 52
• Junkers Ju 86
• Junkers Ju 90
• Junkers Ju 160

Specifications (BMW 132 Dc)

Data from Flugzeug-Typenbuch. Handbuch der deutschen Luftfahrt- und Zubehör-Industrie 1944[2]

General characteristics

• Type: 9-cylinder single-row supercharged air-cooled radial engine
• Bore: 155.6 mm (6.13 in)
• Stroke: 161.9 mm (6.37 in)
• Displacement: 27.72 l (1,691.6 cu in)
• Length: 1,411 mm (55.55 in)
• Diameter: 1,380 mm (54.33 in)
• Dry weight: 525 kg (1,157 lb)

Components

• Valvetrain: Two overhead valves per cylinder
• Supercharger: Single-speed centrifugal-type supercharger rated to 2,600 m (8,530 ft)
• Fuel system: Mona-Hobson carburetor
• Fuel type: 87 octane rating gasoline
• Oil system: pressure system at 6–7.5 bar (600–750 kPa)
• Cooling system: Air-cooled
• Reduction gear: Farman epicyclic gearing, 0.62:1

Performance

• Power output:
  

• 850 PS (838 hp; 625 kW) for takeoff at 2,450 rpm (1 minute) at sea level
• 780 PS (769 hp; 574 kW) at 2,350 rpm (5 minutes) at sea level
• 690 PS (681 hp; 507 kW) at 2,250 rpm (30 minutes) at sea level
• 550 PS (542 hp; 405 kW) at 2,100 rpm (max. duration) at sea level
• 500 PS (493 hp; 368 kW) at 2,000 rpm (max range) at sea level

• Specific power: 28.15 PS/L (0.45 hp/cu in; 20.70 kW/L)
• Compression ratio: 6.5:1
• Specific fuel consumption: 0.24 kg/PSh (0.536 lb/(hp⋅h); 0.326 kg/kWh) at 2,100 rpm
• Oil consumption: 0.003–0.007 kg/PSh (0.007–0.016 lb/(hp⋅h); 0.004–0.010 kg/kWh) at 2,100 rpm
• Power-to-weight ratio: 1.49 PS/kg (0.67 hp/lb; 1.10 kW/kg)
• B.M.E.P.=9.75 bar (141.4 psi)

See also

Related development

• BMW 114
• Pratt & Whitney R-1690 Hornet

Related lists

• List of aircraft engines

References

Bibliography

• Bingham, Victor (1998). Major Piston Aero Engines of World War II. Shrewsbury, UK: Airlife Publishing. ISBN 1-84037-012-2.
• Gunston, Bill (2006). World Encyclopedia of Aero Engines: From the Pioneers to the Present Day (5th ed.). Stroud, UK: Sutton. ISBN 0-7509-4479-X.

External links

На других языках

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[de] BMW 132

Der BMW 132 ist ein luftgekühlter Flugmotor des deutschen Herstellers BMW. Von dem Neunzylinder-Sternmotor mit Fremdzündung wurden zwischen 1933 und 1945 über 21.000 Stück in diversen Varianten gebaut.

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- [en] BMW 132

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[es] BMW 132

El BMW 132 era un motor aeronáutico de tipo radial producido por la firma alemana Bayerische Motorenwerke - BMW a partir de 1933. Fue fruto del desarrollo del Pratt & Whitney R-1690 Hornet, motor norteamericano de nueve cilindros que fabricó a partir de 1928 bajo licencia; inicialmente prácticamente sin cambios bajo la designación BMW Hornet.

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[fr] BMW 132

Le BMW 132 est un moteur radial d'avion, qui a été produit par BMW à partir de 1933. C'était la version allemande du Pratt & Whitney R-1690 Hornet américain.

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[it] BMW 132

Il BMW 132 era un motore aeronautico radiale a 9 cilindri posizionati su una singola stella sviluppato dall'azienda tedesca BMW Flugmotorenbau GmbH all'inizio degli anni trenta.

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[ru] BMW 132

BMW 132 — немецкий поршневой звездообразный 9-цилиндровый авиадвигатель воздушного охлаждения, разработанный в 1933 году на основе конструкции лицензионного Pratt & Whitney R-1690 Hornet. Всего произведено более 21 000 штук.

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