This 1/4 scale Anzani 3-cylinder radial aircraft engine was designed by Les Chenery, of England, and built by Roger Butzen, of California, in 1995. The scale model runs on gasoline with spark ignition and pressurized lubrication system. The cylinders are spaced 120° apart, thus creating a radial configuration. Engine drawings and castings for the crankcase, cylinders and carburetor were provided by Les Chenery. The engine is 15”-long, 23”-wide, 12”-high, and weighs 14 lbs. 2 oz.
Eighteen new engines by Roger Butzen are now on display at the Miniature Engineering Craftsmanship Museum courtesy of the Engine Collection of Paul and Paula Knapp. All of the new items on display were built by the late Roger Butzen of Texas, who was a personal friend of Mr. Knapp. Mr. Butzen was an exceptional model engineer, having regularly displayed a variety of projects at different shows and expos around the country. His 1/4 scale Anzani 3-cylinder radial aircraft engine was previously loaned to the museum from the Knapp Collection, where it remains on display today.