Westbury Zephyr, by John Maddaford, UK
Designed in 1946 this engine has a bore and stroke of 9/16 inch for a total displacement of .142 cu in. It weighs 6 ounces, measures 4 inches long, 2 inches wide, 3-3/4 inches high (including plug) and sports a rear rotary valve intake. John fabricated the patterns, made his own castings, and machined everything else from bar stock.
Courtesy of Paul and Paula Knapp
Miniature Engineering Museum
Westbury Zephyr, by John Maddaford, UK
Designed in 1946 this engine has a bore and stroke of 9/16 inch for a total displacement of .142 cu in. It weighs 6 ounces, measures 4 inches long, 2 inches wide, 3-3/4 inches high (including plug) and sports a rear rotary valve intake. John fabricated the patterns, made his own castings, and machined everything else from bar stock.
Courtesy of Paul and Paula Knapp
Miniature Engineering Museum