Object Details
Manufacturer
Kinner Motors Incorporated
Physical Description
Type: Reciprocating, 5 cylinders, radial, air-cooled
Power rating: 74.6 kW (100 hp) at 1,810 rpm
Displacement: 6.1 L (372 cu in.)
Bore and Stroke: 108 mm (4.3 in.) x 133 mm (5.3 in.)
Weight: 124.7 kg (275 lb)
Summary
Kinner Motors, Inc. succeeded California’s Kinner Airplane and Motor Corporation, first experimenting with the three cylinder K-1 in 1921, and then producing the five-cylinder K-2 in 1927. In 1928, the Kinner K-3 five-cylinder, air-cooled radial engine was certificated. Early in 1929, Kinner started using a completely redesigned and improved cylinder, which was approved without certification. About the time that the improvements were put into effect, the engine became known as the Kinner K-5 Series 2. On April 29, 1930, it was given a rating of 74.6 kW (100 hp). A follow-on version, the Kinner K-5B was rated at 78.3 kW (105 hp). These were good engines, but had a reputation for heavy vibration, recognizable by their distinctive throbbing sound, which was unlike any other radial engine.
Among the K-5 powered aircraft were the Fleet Model 2, Waco KNF and KBA, Mono Aircraft Monosport 2, and Bird BK.
Credit Line
Transferred from the U.S. Air Force Museum
Date
Circa 1929
Inventory Number
A19660458000
Restrictions & Rights
Usage conditions apply
Type
PROPULSION-Reciprocating & Rotary
Materials
Ferrous Alloy
Non-Magnetic Metal
Plastic
Unknown Coating
Cork
Paint
Rubber
Dimensions
Overall: 275lb. (124.7kg)
Other (on stand): 4 ft. 2 in. × 3 ft. 6 in. × 4 ft. 2 in. × 3 ft. 9 3/4 in. × 4 ft. × 4 ft. 2 in. × 3 ft. 6 in. (127 × 106.7 × 127 × 116.2 × 121.9 × 127 × 106.7cm)
Other: 2 ft. 8 1/4 in. (81.9cm)
3-D (Dimensions for Kinner K-5B): 81.9 × 116.2cm (2 ft. 8 1/4 in. × 3 ft. 9 3/4 in.)
Country of Origin
United States of America
See more items in
National Air and Space Museum Collection
Data Source
National Air and Space Museum
Link to Original Record
Record ID
nasm_A19660458000