Lycoming TIO-541 explained

The Lycoming TIO-541 engine is a turbocharged, fuel-injected, horizontally opposed, six-cylinder aircraft engine featuring three cylinders per side, manufactured by Lycoming Engines.[1] [2]

The TIO-541 family of engines includes the TIGO-541 turbocharged, fuel-injected, geared, horizontally opposed engine.

There is no carburetted, non-turbocharged version of the engine, which would have been designated O-541 and therefore the base model is the TIO-541.

Design and development

The TIO-541 family of engines covers a range from 3100NaN0 to 4500NaN0. The engine has a fuel injection system which meters fuel in proportion to the induction airflow. The engine has a displacement of 541.5 cubic inches (8.87 litres) and produces a maximum of 4500NaN0 in its TIGO-541 version. The cylinders have air-cooled heads.

The first TIO-541-A1A was type certified on 23 February 1965 on the regulatory basis of CAR 13 effective 15 June 1956 as amended to 13-1 through 13-4.

Variants

TIO-541-A1A
  • Six-cylinder, turbocharged, fuel-injected, 3100NaN0 engine, dry weight 4490NaN0, AiResearch T-1823 turbosupercharger, certified 23 February 1965. Has top induction, down exhaust and side-mounted accessory drives. Provisions for a single-acting, controllable-pitch propeller and internal piston cooling oil jets.
    TIO-541-E1A4
  • Six-cylinder, turbocharged, fuel-injected, 3800NaN0 engine, dry weight 5950NaN0, AiResearch T-1823 turbosupercharger, certified 16 December 1966. Similar to the -A1A but with higher horsepower rating, different cylinder heads, cam shaft, crankshaft and extra counterweights. Incorporates cabin pressurization venturi.
    TIO-541-E1B4
  • Six-cylinder, turbocharged, fuel-injected, 3800NaN0 engine, dry weight 5950NaN0, AiResearch T-1823 turbosupercharger, certified 16 December 1966. Similar to the -E1A4 but without the cabin pressurization venturi.
    TIO-541-E1C4
  • Six-cylinder, turbocharged, fuel-injected, 3800NaN0 engine, dry weight 5860NaN0, AiResearch T-1879 turbosupercharger, certified 21 October 1969. Similar to the -E1A4 but with a different turbosupercharger with cast bracket, cast transition and a separate wastegate.
    TIO-541-E1D4
  • Six-cylinder, turbocharged, fuel-injected, 3800NaN0 engine, dry weight 5840NaN0, AiResearch T-1879 turbosupercharger, certified 21 October 1969. Similar to the -E1B4 but with a different turbosupercharger with cast bracket, cast transition and a separate wastegate.
    TIGO-541-B1A
  • Six-cylinder, turbocharged, fuel-injected, geared, 4500NaN0 engine, dry weight 6630NaN0, AiResearch T-1879 turbosupercharger, certified 12 February 1970. Similar to the -C1A but with a higher power rating and without provisions for cabin bleed air.
    TIGO-541-C1A
  • Six-cylinder, turbocharged, fuel-injected, geared, 4000NaN0 engine, dry weight 7030NaN0, AiResearch T-1879 turbosupercharger, certified 19 November 1968. Has internal piston cooling oil jets, side-mounted accessory drives and a single oil supply from the propeller governor. Provisions for a reverse-pitch propeller control.
    TIGO-541-D1A
  • Six-cylinder, turbocharged, fuel-injected, geared, 4500NaN0 engine, dry weight 7060NaN0, AiResearch T-18A21 turbosupercharger, certified 26 June 1969. Similar to the -C1A but with a higher power rating and a different turbocharger with provisions for cabin bleed air.
    TIGO-541-D1B
  • Six-cylinder, turbocharged, fuel-injected, geared, 4500NaN0 engine, dry weight 7100NaN0, AiResearch T-18A51 turbosupercharger, certified 3 December 1976. Similar to the -D1A but with an integral wastegate turbocharger and a revised exhaust system and with low drag cylinders.
    TIGO-541-E1A
  • Six-cylinder, turbocharged, fuel-injected, geared, 4250NaN0 engine, dry weight 7060NaN0, AiResearch T-18A21 turbosupercharger, certified 26 June 1969. Similar to the -D1A but with a lower power rating, different turbocharger spring rate and a variable absolute pressure controller.
    TIGO-541-G1AD
  • Six-cylinder, turbocharged, fuel-injected, geared, 4500NaN0 engine, dry weight 7140NaN0, AiResearch T-18A21 turbosupercharger, certified 1 May 1975. Similar to the -D1A but it includes an intercooler, a dual magneto and a fuel injector with fuel head enrichment.

    Applications

    TIO-541
    TIGO-541

    See also

    Notes and References

    1. Web site: TYPE CERTIFICATE DATA SHEET NO. E10EA, Revision 7. 2009-01-13. Federal Aviation Administration. April 1986.
    2. Web site: TYPE CERTIFICATE DATA SHEET NO. E19EA, Revision 4. 2009-01-13. Federal Aviation Administration. April 1986.

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