Jacobs R-915

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.

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

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.
• A Jacobs L-6 is on display at the Canadian Museum of Flight

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