Manufactured in 1928. 4 cylinders, 95 hp. The Cirrus III made light aircraft possible.
The 90 hp OX-5 was one in a series of Glenn Curtiss liquid-cooled V-8 aircraft engines
90 hp opposed-cylinder engine.
60 HP American air-cooled aircraft engine of the late 1930s
An unusual 4-stroke 9-cylinder single-row direct-drive diesel radial engine
A motorcycle piston engine modified for use in aircraft
A V12 engine used by the French military prior to WWII
This 100 hp V-4 target drone engine was built in Fond-Du-Lac, Wisconsin
An American five cylinder radial engine used for light general and sport aircraft of the 1930s
90 HP engine powered Monocoupe aircraft in the 1930s.
4 cylinder horizontally opposed engine that powered many light aircraft in the 1930s
A fairly successful design used widely in light aircraft
2 stroke 72 hp drone engine.
An inverted inline 4 cylinder engine used in multiple aircraft
The Twin Wasp is 14 cylinder 1200 hp double row radial engine with internal supercharger
9 cylinder radial with over 39,000 built from 1930s to 1950s
175 hp inline 6 engine developed in the 1930s by Fairchild Engine and Airplane Corp.
A turboprop engine designed and manufactured by Rolls-Royce Limited
9 cylinder radial engine manufactured in France in the 1930s
Rare five cylinder radial engine manufactured by Security Aircraft Corp.
The first commercially successful radial engine
4 cylinder inline engine powered private aircraft in 1920s and 1930s
14 cylinder 1700 hp radial engine that powered multiple WW II aircraft