The Lycoming O-290 is a dual ignition, four-cylinder, air-cooled, horizontally opposed aircraft engine. It was first run in 1939, and entered production three years later. A common variant of the type is the O-290-G, a single ignition model which was designed to drive a generator as part of a ground power unit.

Variants

Civil models

Military models

Applications

• Adkisson SJ-1 Head Skinner • Aerocar • Aero Commander 100 • Aquaflight Aqua I • Aydlett A-1 • Boeing L-15 Scout • Chrislea Super Ace • Falconar F11 Sporty • Firestone XR-9 • Flying K Sky Raider • Grumman Kitten • Isaacs Fury Mk II • Mustang Aeronautics Midget Mustang • Pazmany PL-1 • Pazmany PL-2 • Piper PA-12 • Piper PA-18 Super Cub • Piper PA-20 Pacer • Piper PA-22 TriPacer • Rogers Sportaire • Sea Teziutlán • Seibel S-4 • Smyth Sidewinder • Stolp Starduster • Stout Skycar • Thorp T-18 • Toyo T-T.10 • VanGrunsven RV-1 • Van Lith VI • Van's Aircraft RV-3 • Warner Revolution II • Warner Sportster • Williams-Cangie WC-1 Sundancer

Specifications (O-290-D2A)