title: Lawrance L-3
text: # 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
  