Continental O-240

The Continental O-240 engine is a four-cylinder, horizontally opposed, air-cooled aircraft engine that was developed in the late 1960s for use in light aircraft by Continental Motors, Inc. The first O-240 was certified on 7 July 1971.

Design and development
The 130 hp O-240 was a new engine design derived from the six-cylinder Continental O-360 and introduced in 1971. It is generally similar in overall dimensions to the Continental O-200, but with a higher 8.5:1 compression ratio, designed to run on 100/130 avgas. The O-240 delivers 30% more power than the O-200 while it weighs only 12% more. It may be mounted in tractor or pusher configuration.

The O-240 was produced under license in the United Kingdom by Rolls-Royce Limited and was used to power the Reims-Cessna FRA150 Aerobat, a more powerful aerobatic model of the Cessna 150 constructed in France by Reims Aviation under license. Rolls-Royce acquired the rights to the O-240, but not the IO-240 in 1977.

The fuel-injected IO-240-A and -B were introduced in 1993. The A and B versions differ only in the type of fuel injector used.

The IOF-240 is similar to the IO-240-B except that it employs an Aerosance FADEC system to control the ignition and fuel injection systems. The engine was not selected to power any production North American-manufactured aircraft until the Liberty XL2 entered production in 2006 powered by the IOF-240-B.

Variants

 * O-240-A
 * Dual ignition, 130 hp at 2800 rpm, dry weight 246 lb including starter and generator. Uses a Marvel-Schebler MA-3SPA IO 5067 carburetor. Certified 7 July 1971


 * IO-240-A
 * Dual ignition, 125 hp at 2800 rpm, dry weight 246 lb, uses a TCM 639231A27 fuel injector


 * IO-240-B
 * Dual ignition, 125 hp at 2800 rpm, dry weight 246 lb, uses a TCM 639231A34 fuel injector


 * IOF-240-B
 * Aerosance FADEC system controls the ignition and fuel injection systems, 125 hp at 2800 rpm, dry weight 255 lb

Applications

 * O-240
 * AESL Airtourer T3
 * Reims Cessna FRA150 Aerobat ("R" meaning a Rolls-Royce-built O-240)
 * Rutan Voyager (front engine)
 * Practavia Sprite
 * Rollason Condor (D62C)
 * St Croix Pietenpol Aerial
 * Tri-R KIS TR-1
 * Warner Revolution II
 * IO-240
 * American Homebuilts John Doe
 * Diamond DA20-C1
 * Eagle Aircraft 150B
 * Rans S-16 Shekari
 * Roko Aero NG4
 * IOF-240-B
 * Issoire APM 40 Simba
 * Liberty XL2