Feeney Original 20cc Model Airplane Engine, Chicago IL, circa 1940
The Feeney is one of the first four-cycle model engines manufactured in the United States. This 20cc engine is the largest of the Feeney engines, which were also available in 10cc and 15cc sizes. All were air-cooled and produced from the same castings except the cylinder castings. The 10cc was cast with 7 fins, the 15cc with 8 fins, and the 20cc with 9 fins. They were designed to burn gasoline on spark ignition with oil in the crankcase for splash lubrication. The crankshaft, rockers and valves are aluminum bronze and the crankshaft ran directly in the aluminum crankcase without bushings: The valves are seated directly in the aluminum head without valve cages or valve-seats and the steel piston (with two rings) ran directly in the aluminum cylinder; combinations that were not favorable for long-life expectancy.
See More 1-Cylinder Engines at: www.flickr.com/photos/15794235@N06/albums/72157656174064422
See Our Model Engine Collection at: www.flickr.com/photos/15794235@N06/sets/72157602933346098/
Visit Our Photo Sets at: www.flickr.com/photos/15794235@N06/sets
Courtesy of Paul and Paula Knapp
Miniature Engineering Museum
Feeney Original 20cc Model Airplane Engine, Chicago IL, circa 1940
The Feeney is one of the first four-cycle model engines manufactured in the United States. This 20cc engine is the largest of the Feeney engines, which were also available in 10cc and 15cc sizes. All were air-cooled and produced from the same castings except the cylinder castings. The 10cc was cast with 7 fins, the 15cc with 8 fins, and the 20cc with 9 fins. They were designed to burn gasoline on spark ignition with oil in the crankcase for splash lubrication. The crankshaft, rockers and valves are aluminum bronze and the crankshaft ran directly in the aluminum crankcase without bushings: The valves are seated directly in the aluminum head without valve cages or valve-seats and the steel piston (with two rings) ran directly in the aluminum cylinder; combinations that were not favorable for long-life expectancy.
See More 1-Cylinder Engines at: www.flickr.com/photos/15794235@N06/albums/72157656174064422
See Our Model Engine Collection at: www.flickr.com/photos/15794235@N06/sets/72157602933346098/
Visit Our Photo Sets at: www.flickr.com/photos/15794235@N06/sets
Courtesy of Paul and Paula Knapp
Miniature Engineering Museum