Jacobs R-915

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R-915
Jacobs engine, BT-13 - Evergreen Aviation & Space Museum - McMinnville, Oregon - DSC00478.jpg
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. [1]

Contents

Design and development

The R-915 was effectively an enlargement of the R-755 with strengthened stressed parts. [2] With a bore and stroke of 5.5 in × 5.5 in (140 mm × 140 mm), for a displacement of 915 cu in (15 L). Take-off power was around 330 hp (250 kW). 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

Engines on display

Specifications (R-915A1)

Data from Jane's [5]

General characteristics

Components

Performance

See also

Related development

Comparable engines

Related lists

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References

Notes

  1. Gunston 1989, p.85.
  2. Wilkinson, Paul H. (1950). Aircraft engines of the World 1950 (8th ed.). London: Sir Isaac Pitman & Sons Ltd. p. 161.
  3. Nanton Lancaster Society: Jacobs L-6 MB Retrieved: 23 July 2015
  4. The Canadian Museum of Flight - L-6 Retrieved: 31 January 2009
  5. Janes 1989, p.305.

Bibliography

  • Gunston, Bill. World Encyclopedia of Aero Engines. Cambridge, England. Patrick Stephens Limited, 1989. ISBN   1-85260-163-9
  • Jane's Fighting Aircraft of World War II. London. Studio Editions Ltd, 1989. ISBN   0-517-67964-7