Lycoming O-290
(Redirected from Avco Lycoming O-290)
| O-290 | |
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The Lycoming O-290 is a dual-ignition, four-cylinder, air-cooled, horizontally opposed aircraft engine. It was first run in 1939, and entered production three years later.
A common variant of the type is the O-290-G, a single-ignition model which was designed to drive a generator as part of a ground power unit.
Variants
Civil models
- O-290
- Base model engine certified 27 July 1942. Script error: No such module "convert". at 2450 rpm, 6.25:1 compression ratio, dry weight Script error: No such module "convert".[1]
- O-290-A
- Certified 27 July 1942. Script error: No such module "convert". at 2600 rpm continuous, Script error: No such module "convert". at 2800 rpm for 5 minutes, 6.5:1 compression ratio, dry weight Script error: No such module "convert". with SR4L-8 or N-8 magnetos, Script error: No such module "convert". with N-20 or N-21 magnetos.[1]
- O-290-AP
- Certified 21 July 1944. Script error: No such module "convert". at 2600 rpm continuous, Script error: No such module "convert". at 2800 rpm for 5 minutes, 6.5:1 compression ratio, dry weight Script error: No such module "convert". with SR4L-8 or N-8 magnetos, Script error: No such module "convert". with N-20 or N-21 magnetos.[1]
- O-290-B
- Certified 22 January 1943. Script error: No such module "convert". at 2600 rpm continuous, Script error: No such module "convert". at 2800 rpm for 5 minutes, 6.5:1 compression ratio, dry weight Script error: No such module "convert"..[1]
- O-290-C
- Certified 22 January 1943. Script error: No such module "convert". at 2600 rpm continuous, Script error: No such module "convert". at 2800 rpm for 5 minutes, 6.5:1 compression ratio, dry weight Script error: No such module "convert"..[1]
- O-290-CP
- Certified 21 July 1944. Script error: No such module "convert". at 2600 rpm continuous, Script error: No such module "convert". at 2800 rpm for 5 minutes, 6.5:1 compression ratio, dry weight Script error: No such module "convert"..[1]
- O-290-D
- Certified 13 December 1949. Script error: No such module "convert". at 2600 rpm continuous, Script error: No such module "convert". at 2800 rpm for 5 minutes, 6.5:1 compression ratio, dry weight Script error: No such module "convert"..[1]
- O-290-D2
- Certified 1 May 1952. Script error: No such module "convert". at 2600 rpm continuous, Script error: No such module "convert". at 2800 rpm for 5 minutes, 7.5:1 compression ratio, dry weight Script error: No such module "convert"..[1]
- O-290-D2A
- Certified 20 April 1953. Script error: No such module "convert". at 2600 rpm continuous, Script error: No such module "convert". at 2800 rpm for 5 minutes, 7.5:1 compression ratio, dry weight Script error: No such module "convert"..[1]
- O-290-D2B
- Certified 30 September 1954. Script error: No such module "convert". at 2600 rpm continuous, Script error: No such module "convert". at 2800 rpm for 5 minutes, 7.0:1 compression ratio, dry weight Script error: No such module "convert"..[1]
- O-290-D2C
- Certified 8 May 1961. Script error: No such module "convert". at 2600 rpm continuous, Script error: No such module "convert". at 2800 rpm for 5 minutes, 7.0:1 compression ratio, dry weight Script error: No such module "convert"..[1]
- O-290-G
- Non-certified, single ignition model intended for use driving a generator in a ground power unit, Script error: No such module "convert".. Has been widely used in homebuilt aircraft, including the prototype Van's Aircraft RV-3.[2]
Military models
- O-290-1
- Identical to the O-290-B[1]
- O-290-3
- Identical to the O-290-C[1]
- O-290-11
- Identical to the O-290-D[1]
Applications
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Specifications (O-290-D2A)
Data from Operator's Manual, Textron Lycoming Aircraft Engines.[3]
General characteristics
- Type: 4-cylinder air-cooled horizontally opposed piston aircraft engine
- Bore: Script error: No such module "convert".
- Stroke: Script error: No such module "convert".
- Displacement: Script error: No such module "convert".
- Dry weight: Script error: No such module "convert".
Components
- Valvetrain: Pushrod-actuated valves
- Fuel system: Carburetor
- Cooling system: Air-cooled
Performance
- Power output: Script error: No such module "convert". at 2,800 rpm
- Specific power: 0.48 hp/in3 (22.2 kW/L)
- Compression ratio: 7.5:1
See also
Comparable engines
Related lists
References
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