Lycoming O-540
The Lycoming O-540 is a family of air-cooled six-cylinder, horizontally opposed fixed-wing aircraft and helicopter engines of Template:Convert displacement, manufactured by Lycoming Engines. The engine is a six-cylinder version of the four-cylinder Lycoming O-360.
Design and development
Producing between Template:Convert[1] these engines are installed in a large variety of aircraft.[2] The main competitors are the Continental IO-520 and IO-550 series.
An AEIO version was developed for high-performance competition aerobatics aircraft. Starting at Template:Convert the power was eventually increased to Template:Convert. The AEIO-540 family has achieved considerable success in aircraft such as the Extra 300, CAP 232, and Zivko Edge 540.
Variants
All engines have an additional prefix preceding the 540 to indicate the specific configuration of the engine.[1] The numerous engine suffixes denote different accessories such as different manufacturers' carburetors, or different magnetos.
- O-540
- Standard, direct-drive, normally aspirated Opposed engine, equipped with a carburetor
- IO-540
- Normally aspirated engine with continuous fuel Injection
- AEIO-540
- Normally aspirated engine with fuel injection and inverted lubrication for Aerobatic use
- TIO-540
- Turbocharged and fuel-injected
- TEO-540
- Turbocharged with a FADEC control system using Lycoming's iE2 system, offering independent Electronic sensors and fuel injection controls for each cylinder, which manage detonation and exhaust gas temperature, make the engine compatible with a range of fuel compositions, producing up to Template:Cvt.[3][4][5]
- LTIO-540
- Left-hand (opposite-direction) rotation, turbocharged, fuel-injected; used as the right-hand engine on Piper PA-31-325 Navajo C/Rs and Piper PA-31-350 Chieftain|Piper Mojaves[6] to prevent critical engine control issues, and used for the left side of the Aerostar 700P
- IGO-540
- Gearbox at the front end of the crankshaft to drive the propeller at fewer revolutions per minute than the engine, normally aspirated with fuel injection, dry sump engine built specifically for the Aero Commander 560F
- TIGO-540
- Turbo-charged, injected and geared
- IGSO-540
- Supercharger driven by the engine, gearbox to drive propeller, and fuel injection (up to Template:Cvt)
- VO-540
- Vertically mounted engine for use in a helicopter, normally aspirated and equipped with a carburetor
- IVO-540
- Normally aspirated engine with fuel injection, mounted vertically for use in a helicopter
- TVO-540
- Turbocharged engine equipped with a carburetor, mounted vertically for use in a helicopter
- TIVO-540
- Turbocharged engine with fuel injection, mounted vertically for use in a helicopter
- HIO-540
- Helicopter engine mounted horizontally as in fixed-wing aircraft, normally aspirated with fuel injection; not used in any fixed-wing aircraft[2]
- TIO-541
- Same as a TIO-540, except the "1" indicates an integral accessory drive[7]
- TIGO-541
- Same as a TIGO-540, except the "1" indicates an integral accessory drive[7]
Applications
Specifications (IO-540-K1A5)
Data from FAA Lycoming IO-540 Series Type Certificate. Retrieved: 1 September 2008.
General characteristics
- Type: Six-cylinder air-cooled horizontally opposed engine
- Bore: 5.125 in (130.2 mm)
- Stroke: 4.375 in (111.1 mm)
- Displacement: 541.5 in³ (8.9 L)
- Dry weight: Template:Cvt
Components
- Valvetrain: Two overhead valves per cylinder
- Fuel system: Fuel injection
- Fuel type: 100 octane rating gasoline
- Cooling system: Air-cooled
Performance
- Power output: Template:Cvt at 2,700 rpm at sea level
- Specific power: 0.55 hp/in³ (25.14 kW/L)
- Compression ratio: 8.7:1
- Power-to-weight ratio: 0.68 hp/lb (1.12 kW/kg)
See also
Related development
Comparable engines
Related lists
References
External links
- ↑ a b Script error: No such module "citation/CS1".
- ↑ a b Page listing all variants of the Lycoming O-540 series. Retrieved: 1 September 2008.
- ↑ Lycoming TEO-540-EXP press release
- ↑ Tecnam P2012 TEO-540-C1A produces 375HP @ 2,575 RPM per FAA Type Certificate Data Sheet No. A00076CE
- ↑ Script error: No such module "citation/CS1".
- ↑ FAA Piper PA-31-300/325/350 Type Certificate. Retrieved: 1 September 2008.
- ↑ a b Script error: No such module "citation/CS1".