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
;R-915A1:Baseline variant; an enlarged R-755;R-915A3:Similar to the A1 but with Scintilla magnetoes
;R-915A4:With 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.
- A Jacobs L-6 is on display at the Canadian Museum of Flight
Specifications (R-915A1)