Lycoming O-720

Introduced in 1961, the O-720 is one of Textron-Lycoming's best-selling piston engines. The O-720 is basically an eight-cylinder version of the six-cylinder O-540 and four-cylinder O-360.

models

  • IO-720-A1A: 400 hp (298 kW)

specifications

  • Horizontally opposed, 8 cylinder, piston engine
  • Air-cooled
  • Displacement: 722 cubic inches  (11.8 litres)
  • Bore x stroke: 5.125 x 4.375 inches

used by

  • IMCO CallAir B-1