Lawrance J-1

J-1
Lawrance J-1 at the National Air and Space Museum
TypePiston aero engine
National originUnited States
ManufacturerLawrance Aero Engine Company

The Lawrance J-1 was an engine developed by Charles Lanier Lawrance and used in American aircraft in the early 1920s. It was a nine-cylinder, air-cooled radial design.