Continental O-280

O-280
Type	Piston aircraft engine
National origin	USA
Manufacturer	Continental Motors

The Continental C115, C125 and C140 aircraft engines were made by Continental Motors in the 1940s, all sharing the US military designation O-280. Of flat-6 configuration, the engines produced 115 hp (86 kW) 125 hp (93 kW) or 140 hp (104 kW) respectively.

The C115 was in production from 1945 to 1951, the C125 was in production from 1945 to 1952, and the C140 from 1945 to 1946.

The C125 has the same crankcase as the Continental C145, although the engines differ in stoke, compression ratio and carburetor jetting. The C125 features a cast iron camshaft and hydraulic tappets.^[1]

Applications

C125

• Aero-Flight Streak
• Baumann Brigadier
• Call-Air A-3
• Globe Swift
• Grumman Tadpole
• Hockaday Comet
• KZ VII
• Meyers MAC-125
• Miles Gemini

Specifications (C125)

Reference: Engines for Homebuilt Aircraft & Ultralights^[1]

General characteristics

• Type: 6-cylinder air-cooled horizontally opposed aircraft piston engine
• Bore: 4.0625 in (103 mm)
• Stroke: 3.625 in (92 mm)
• Displacement: 282 in³ (4.6 L)
• Length: 39.75 in (101.0 cm)
• Width: 31.5 in (80.0 cm)
• Height: 23.25 in (59.0 cm)
• Dry weight: 286 lb (130 kg)

Components

• Cooling system: Air-cooled

Performance

• Power output: 125 hp (93 kW) at 2,550 rpm
• Specific power: 0.44 hp/in³ (20.2 kW/l)
• Compression ratio: 6.3:1
• Power-to-weight ratio: 0.43 hp/lb (0.72 kW/kg)

See also

Related lists

• List of aircraft engines
  

References

1. ^ ^{a b} Christy, Joe: Engines for Homebuilt Aircraft & Ultralights, pages 60-62. TAB Books, 1983. ISBN 0-8306-2347-7

• Gunston, Bill. (1986) World Encyclopedia of Aero Engines. Patrick Stephens: Wellingborough.
• Erickson, Jack. Horizontally-Opposed Piston Aero Engines