Detroit’s Continental Motors was the world’s largest manufacturer of automotive engines during the 1920s. In 1925, it bought patent rights to the Burt McCollum mono-sleeve valve, but could not successfully apply it in an aircraft engine. Returning to poppet valves, the A-70 radial of 1928 was the company’s successful contribution to the post-World War I aircraft engine market. However, Continental only became an industry leader with the horizontally opposed type; the first being the A-40 of 1931.
Installed in the Piper J-3 cub airframe, a 1939 refined version of Continental’s A-65 horizontally opposed engine promoted great growth of sport aviation by providing a dependable, inexpensive airplane with adequate performance and sufficient production to support good service facilities at almost any airport.
Introduced following World War II with a series of larger horizontally opposed engines, the C-125 was in production from 1945 to 1952. This C-125 artifact powered a Globe Swift GC-1B small general aviation aircraft.
Gift of Michael H. Bednarek, Swift Museum Foundation, Inc., G. Porter Houston, and Robert H. Padgett
Weight (dry): 116.6 kg (257 lb)