Kinner_K-5 Knowpia

K-5
	Kinner K-5 on display at the Pima Air & Space Museum
Type	Radial engine
National origin	United States of America
Manufacturer	Kinner Airplane & Motor Corporation
Developed into	Kinner B-5

The Kinner K-5 was a popular engine for light general and sport aircraft developed by Winfield B. 'Bert' Kinner.^[1] With the boom in civilian aviation after Charles Lindbergh's transatlantic flight the K-5 sold well. The K-5 was a rough running^{[citation needed]} but reliable engine and the K-5 and its derivatives were produced in the thousands, powering many World War II trainer aircraft. The K-5 was followed by the B-5, R-5 and R-55. Military engines were designated R-370

Applications edit

Adcox Special
American Eagle A-129 biplane
Chamberlin C-2
Davis D-1-K
Fleet Model 2
Granville Brothers Model A biplane
Kinner Sportster
Kreutzer Air Coach
Simplex C-2 Red Arrow
Sullivan Model K-3 Crested Harpy
Waco KSO

Specifications (Kinner K-5) edit

Data from Jane's all the World's Aircraft 1928^[2]

General characteristics

Type: Five-cylinder, air-cooled, radial
Bore: 4.25 in (108 mm)
Displacement: 372.4 cu in (6.103 L)
Length: 19 in (480 mm)
Diameter: 43.5 in (1,100 mm)
Dry weight: 231 lb (105 kg)

Components

Valvetrain: 1 inlet and 1 exhaust valve per cylinder
Fuel system: 1 Stromberg carburetor or 1 double Zenith carburetor
Fuel type: 73 Octane
Oil system: pressure fed through hollow crankshaft
Cooling system: Air

Performance

Power output:
- 100 hp (75 kW) at 1,810 rpm maximum
- 70 hp (52 kW) at 1,650 rpm cruise
Compression ratio: 5.0:1
Fuel consumption: 7 gal/h (5.8 imp gal/h; 26 L/h)
Oil consumption: 0.3125 gal/h (0.2602 imp gal/h; 1.183 L/h)
Power-to-weight ratio: 0.36 hp/lb (0.59 kW/kg) at cruise

References edit

^ "Winfield B. "Bert" Kinner Collection, 1919-1993". Retrieved 29 November 2010.
^ Grey, C.G., ed. (1928). Jane's all the World's Aircraft 1928. London: Sampson Low, Marston & company, ltd. p. 56d.