| O-290 | |
|---|---|
| |
| Type | Piston aircraft engine |
| National origin | United States |
| Manufacturer | Lycoming Engines |
| First run | 1939 |
| Major applications | Taylorcraft Auster IV Taylorcraft Auster V Ground Power Unit |
| Produced | 1942–1975 out of production |
| Developed into | Lycoming O-435 |
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.