The Farman 12We was a French 12-cylinder broad arrow configuration

aircraft engine An aircraft engine, often referred to as an aero engine, is the power component of an aircraft propulsion system. Most aircraft engines are either piston engines or gas turbines, although a few have been rocket powered and in recent years many ...

that was designed and built by

Farman Farman Aviation Works (french: Avions Farman) was a French aircraft company founded and run by the brothers Richard, Henri, and Maurice Farman. They designed and constructed aircraft and engines from 1908 until 1936; during the French national ...

in the early 1920s. Power output was 370 kilowatts (500 hp).

Design and development

The Farman company developed and produced aero engines from 1915; the 12We was the company's most produced engine. Following the

cylinder A cylinder (from ) has traditionally been a three-dimensional solid, one of the most basic of curvilinear geometric shapes. In elementary geometry, it is considered a prism with a circle as its base. A cylinder may also be defined as an infin ...

layout of the

Napier Lion The Napier Lion is a 12-cylinder, petrol-fueled 'broad arrow' W12 configuration aircraft engine built by D. Napier & Son from 1917 until the 1930s. A number of advanced features made it the most powerful engine of its day and kept it in produ ...

this engine featured three

banks A bank is a financial institution that accepts deposits from the public and creates a demand deposit while simultaneously making loans. Lending activities can be directly performed by the bank or indirectly through capital markets. Because ...

of four cylinders and employed water cooling.Gunston 1989, p. 56. The 12We was first flown in a

Farman F.60 Goliath The Farman F.60 Goliath was a French airliner and bomber produced by the Farman Aviation Works from 1919. It was instrumental in the creation of early airlines and commercial routes in Europe after World War I. Design and development The ''G ...

in October 1922 and later set a distance record powering a Farman F.62 in 1924, the engine ran continuously for 38 hours.

Variants

;12Wers: with 0.5:1 reduction gear and KP24 supercharger.

Applications

Engines on display

Preserved Farman 12We engines are on static display at the following museums: *

Deutsches Museum Flugwerft Schleissheim Flugwerft Schleissheim is an aviation museum located in the German town of Oberschleißheim near Munich, it forms part of the Deutsches Museum collection and complements the aviation exhibits on display at the main site. The museum was opened on ...

Polish Aviation Museum The Polish Aviation Museum ( pl, Muzeum Lotnictwa Polskiego w Krakowie) is a large museum of historic aircraft and aircraft engines in Kraków, Poland. It is located at the site of the no-longer functional Kraków-Rakowice-Czyżyny Air ...

www.muzeumlotnictwa.pl - Farman 12WE exhibit
Retrieved: 5 August 2014

Specifications)

References

Notes

Bibliography

* Gunston, Bill. ''World Encyclopaedia of Aero Engines''. Cambridge, England. Patrick Stephens Limited, 1989.

External links

{{Farman Aviation Works aeroengines 1920s aircraft piston engines W engines