Lawrance L-3
# Lawrance L-3

The Lawrance L-3 and L-4 were early aircraft piston engines with three radial cylinders, designed and built by the Lawrance Aero Engine Company in the early 1920s. The L-3 / L-4 series were marketed by the Wright Aeronautical Corporation as the Wright Gale after the acquisition of the Lawrance company.

## Applications

* Loening M-2
* Naval Aircraft Factory SA
* Sikorsky S-33 Messenger

## Specifications

### General characteristics

* Type: 3-cylinder, air-cooled radial piston aircraft engine
* Bore: 4.25 in (108.0 mm)
* Stroke: 5.25 in (133.4 mm)
* Displacement: 223.4 cubic inches (3.7 L)
* Length: 24 inches (610 mm)
* Diameter: 39.0 inches (991 mm)
* Dry weight: 147 pounds (66.7 kg)

### Components

* Cooling system: air-cooled

### Performance

* Power output: 65 horsepower (48 kW) at 2000 rpm
