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Jacobs R-915

Radial aircraft engine manufactured in the United States

Field	Value
name	R-915
image	File:Jacobs engine, BT-13 - Evergreen Aviation & Space Museum - McMinnville, Oregon - DSC00478.jpg
engine_type	Radial engine
manufacturer	Jacobs Aircraft Engine Company
developed_from	Jacobs R-755

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 5.5 x, for a displacement of 915 cuin. Take-off power was around 330 hp. 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)

and start a new, fully-formatted line with -- |power/weight=0.6 hp/lb (1 kW/kg)

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.

References

Gunston 1989, p.85.
Wilkinson, Paul H.. (1950). "Aircraft engines of the World 1950". Sir Isaac Pitman & Sons Ltd..
[http://www.bombercommandmuseum.ca/engine_jacobs.html Nanton Lancaster Society: Jacobs L-6 MB] {{Webarchive. link. (2015-09-23 Retrieved: 23 July 2015)
[http://www.canadianflight.org/content/jacobs-l-6 The Canadian Museum of Flight - L-6] Retrieved: 31 January 2009
Janes 1989, p.305.

Info: Wikipedia Source

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