Engines on Display Cirrus IIIManufactured in 1928. 4 cylinders, 95 hp. The Cirrus III made light aircraft possible. Curtiss OX-5The 90 hp OX-5 was one in a series of Glenn Curtiss liquid-cooled V-8 aircraft engines Franklin 199-E 90 hp opposed-cylinder engine. Franklin 4AC-150-A60 HP American air-cooled aircraft engine of the late 1930s Guiberson A-1020 DieselAn unusual 4-stroke 9-cylinder single-row direct-drive diesel radial engine Heath-Henderson B-4A motorcycle piston engine modified for use in aircraft Kiekhaefer V-105-2This 100 hp V-4 target drone engine was built in Fond-Du-Lac, Wisconsin Kinner R-5An American five cylinder radial engine used for light general and sport aircraft of the 1930s Lambert Aircraft R-26690 HP engine powered Monocoupe aircraft in the 1930s. Lycoming O-145-B24 cylinder horizontally opposed engine that powered many light aircraft in the 1930s Lycoming R-680-B4EA fairly successful design used widely in light aircraft McCulloch Model 4318A2 stroke 72 hp drone engine. Menasco D4-87An inverted inline 4 cylinder engine used in multiple aircraft Pratt & Whitney R-1830The Twin Wasp is 14 cylinder 1200 hp double row radial engine with internal supercharger Pratt & Whitney R-9859 cylinder radial with over 39,000 built from 1930s to 1950s Ranger L-440175 hp inline 6 engine developed in the 1930s by Fairchild Engine and Airplane Corp. Rolls-Royce DartA turboprop engine designed and manufactured by Rolls-Royce Limited Salmson 9AD9 cylinder radial engine manufactured in France in the 1930s Security S5-125 Rare five cylinder radial engine manufactured by Security Aircraft Corp. Wright J-5A-BThe first commercially successful radial engine Wright “Gipsy I” L-320 Engine4 cylinder inline engine powered private aircraft in 1920s and 1930s Wright R-260014 cylinder 1700 hp radial engine that powered multiple WW II aircraft