• Source: Kinner R-5

The 5.180.24.3/info/kinner" target="_blank">Kinner 5.180.24.3/info/r" target="_blank">R-5 is an American five cylinder radial engine for light general and sport aircraft of the 1930s.




Design and development


The 5.180.24.3/info/r" target="_blank">R-5 was a development of the earlier 5.180.24.3/info/kinner" target="_blank">Kinner B-5, with slightly greater power and dimensions. The main change was the increase in cylinder bore from 117 mm (4.625 in) to 127 mm (5 in) and an increase in piston stroke from 133.3 mm (5.25 in) to 139.7 mm (5.5 in). This led to a corresponding increase in displacement from 7.2 liters (441 cu in) to 8.8 liters (540 cu in). The 5.180.24.3/info/r" target="_blank">R-5 was a rough running but reliable engine. Thousands of the 5.180.24.3/info/r" target="_blank">R-5 and its derivatives were produced, powering many World War II trainer aircraft. Its military designation was 5.180.24.3/info/r" target="_blank">R-540.




Applications



Fleet Finch Model 5.180.24.3/info/r" target="_blank">R
Howard DGA-18
5.180.24.3/info/kinner" target="_blank">Kinner Sportwing
5.180.24.3/info/kinner" target="_blank">Kinner Playboy
Meyers OTW
N2T Tutor
Ryan PT-22 Recruit




Variants


5.180.24.3/info/r" target="_blank">R-5

5.180.24.3/info/r" target="_blank">R-53

5.180.24.3/info/r" target="_blank">R-55

5.180.24.3/info/r" target="_blank">R-56




Specifications (5.180.24.3/info/kinner" target="_blank">Kinner 5.180.24.3/info/r" target="_blank">R-5)


Data from Jane's all the World's Aircraft 1938




= General characteristics

=
Type: 5-cylinder air cooled radial
Bore: 5 in (130 mm)
Stroke: 5.5 in (140 mm)
Displacement: 540 cu in (8.8 L)
Length: 32.3 in (820 mm)
Height: 45.6 in (1,160 mm)
Dry weight: 330 lb (150 kg)




= Components

=
Valvetrain: 1 inlet and 1 exhaust valve per cylinder
Fuel system: 1 Stromberg carburetor
Fuel type: 73 octane
Oil system: Dry sump
Cooling system: Air




= Performance

=
Power output: 160hp at 1,850 RPM max/113hp at 1,800 RPM cruise
Compression ratio: 5.5:1
Power-to-weight ratio: 0.48 hp/lb




See also



Related development

5.180.24.3/info/kinner" target="_blank">Kinner B-5

Comparable engines

Armstrong Siddeley Mongoose
Shvetsov M-11
Warner Super Scarab
Wright 5.180.24.3/info/r" target="_blank">R-540
Related lists

List of aircraft engines




References






Further reading


Gunston, Bill (1986). World Encyclopedia of Aero Engines. Wellingborough: Patrick Stephens. pp. 99–100.




External links


http://www.oldengine.org/members/diesel/Duxford/usaero4.htm Archived 2019-06-03 at the Wayback Machine

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