Lycoming O-540

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Lycoming
Lycoming O-540

Lycoming O-540

Lycoming O-540
Production period: since 1957
Manufacturer: Lycoming
Developing country: United StatesUnited States United States
Working principle: Otto
Motor design: boxer
Cylinder: 6th
Drilling: 130.2 mm
Hub: 111.1 mm
Displacement: 8875 cm 3
Mixture preparation: Manifold injection
Engine charging: partly turbocharger or compressor
Cooling system: Air cooling
Power: 173-257 kW
Previous model: none
Successor: none

Lycoming O-540 is the name of an aircraft engine that comes from a piston engine family from the US manufacturer Lycoming . The engine was first presented in 1957 and is still in production today.

technical features

All engines of this series are air-cooled Otto -Viertakt- boxer engines (O for opposite , opposite), have six cylinders mm with a hole of 130.2 mm with a stroke of 111.1. The displacement is, as the type designation 540 suggests, 540 cubic inches , corresponding to 8875 cm³. The engine has a central camshaft with pushrod actuation of the valves. The cylinder liners are made of nitrided steel, the individual cylinder heads are made of a light metal alloy. Other engines from the manufacturer from the same family, i.e. H. with the same bore and stroke are the four-cylinder Lycoming O-360 and eight-cylinder Lycoming O-720 . A variant of the IO-540 is the first aircraft engine that has been approved for use with ethanol and is used in the Embraer EMB 202 A.

Designation system

Different versions have additional features that can be identified by the letters preceding the designation, such as: B. I ( injection ) for fuel injection , AE ( Aerobatic ) for aerobatics, G ( geared ) for gearbox, H ( Helicopter Horizontal ) for helicopter installation in a horizontal position, L ( Left Hand Rotation Crankshaft ) for a left-hand motor (standard is in Direction of flight clockwise), S ( supercharger ) for a supercharger driven by the engine , T ( turbo supercharger ) for turbocharging and V for the option of installing the crankshaft in a vertical position in helicopters.

variants

  • O-540: Original engine approved on October 31, 1957. It is still in production and guaranteed depending on the model between 173 kW (235 hp) at 2,575 min -1 and 199 kW (270 hp) at 2700 min -1 . It is used in a number of well-known aircraft such as the Cessna 182 , the Britten-Norman BN-2 Islander or the Piper PA-23 Apache . In Germany, the Dornier Do 28 A had two engines of this type. It is also used in the Robinson R44 helicopter .
  • VO-540, variant for vertical installation with blower for use in Bell 47 and Hiller 12 helicopters . The engine delivers 224-232 kW (305-315 hp) at 3200 min -1 . It was produced between 1958 and 1982.
  • IGSO 540: execution with compressor and a power 279 kW (380 hp) at 3200 min -1 , which was prepared 1960-1978. It had a gear with a ratio i = 0.642. It was installed in the Aero Commander 680 F and in Germany in the Skyservant .
  • IGO-540: version with 239 kW (325 hp) at 3000 min -1 for the Pilatus PC-6 and Aero Commander 560 F. The engine was built from 1960 to 1977. It was also translated with i = 0.642.
  • TVO-540: turbocharger variant with 224 kW at 3200 min -1 for the Hiller 12 . The engine was only manufactured between 1961 and 1965.
  • TIVO-540: Turbocharger variant with injection for the Hiller SL3 and Hiller SL4 . The engine made 232 kW at 3200 min -1 . It was manufactured between 1963 and 1977.
  • IVO-540 variant with 224 kW at 3200 mi-1 which was manufactured between 1965 and 1977 for the Brantly 305 .
  • HIO-540: version with 213 kW (290 hp) at 2,575 min -1 , however, was not used that was offered between 1974 and 1977 in a series.
Lycoming AEIO-540-D4A5
  • TIO-540NXT: Specially tuned variant for the Nemesis NXT for participation in the Reno Air Race with 257 kW.
  • O-540-L3C5D: Original engine supplemented by an uncontrolled exhaust gas turbocharger for use in the Cessna 182 Turbo RG from 1978 (TR182). The engine develops 173 kW at 2575 min −1 and 105 kPa (31 in Hg ) boost pressure . The consumption is 125 liters of AvGas per hour.

Web links

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