The Jacobs R-915 or Jacobs L-6 is a seven-cylinder, air-cooled, radial engine for aircraft manufactured in the United States, production started in 1936.Gunston 1989, p.85.

Design and development The R-915 was effectively an enlargement of the R-755 with strengthened stressed parts. With a bore and stroke of , for a displacement of . Take-off power was around . The engine features steel cylinders with aluminum-alloy cylinder heads.

Variants R-915A1Baseline variant; an enlarged R-755 R-915A3Similar to the A1 but with Scintilla magnetoes R-915A4With a power take-off for autogyros

Applications Avro Anson Mk II and Mk III Beechcraft Model 18D Beechcraft F-17D Staggerwing Fleet 50 Howard DGA-15J Kellett KD-1 Waco AQC, AGC, ARE, AVN

Engines on display A preserved Jacobs R-915 is on display at the Nanton Lancaster Society.Nanton Lancaster Society: Jacobs L-6 MB Retrieved: 23 July 2015 A Jacobs L-6 is on display at the Canadian Museum of FlightThe Canadian Museum of Flight - L-6 Retrieved: 31 January 2009

Specifications (R-915A1)

See also

References

Notes

Bibliography

Gunston, Bill. World Encyclopedia of Aero Engines. Cambridge, England. Patrick Stephens Limited, 1989. Jane's Fighting Aircraft of World War II. London. Studio Editions Ltd, 1989.

External links

Jacobs L-6 MB , Bomber Command Museum of Canada - Nanton Lancaster Society FAA Type Data Certificate Sheet - R-915