Lycoming TIO-541

The TIO-541 family of engines covers a range from {{convert|310|hp|kW|0|abbr=on}} to {{convert|450|hp|kW|0|abbr=on}}. 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 {{convert|450|hp|kW|0|abbr=on}} 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.

;TIO-541-A1A

:Six-cylinder, turbocharged, fuel-injected, {{convert|310|hp|kW|0|abbr=on}} engine, dry weight {{convert|449|lb|kg|0|abbr=on}}, 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, {{convert|380|hp|kW|0|abbr=on}} engine, dry weight {{convert|595|lb|kg|0|abbr=on}}, 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, {{convert|380|hp|kW|0|abbr=on}} engine, dry weight {{convert|595|lb|kg|0|abbr=on}}, 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, {{convert|380|hp|kW|0|abbr=on}} engine, dry weight {{convert|586|lb|kg|0|abbr=on}}, 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, {{convert|380|hp|kW|0|abbr=on}} engine, dry weight {{convert|584|lb|kg|0|abbr=on}}, 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, {{convert|450|hp|kW|0|abbr=on}} engine, dry weight {{convert|663|lb|kg|0|abbr=on}}, 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, {{convert|400|hp|kW|0|abbr=on}} engine, dry weight {{convert|703|lb|kg|0|abbr=on}}, 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, {{convert|450|hp|kW|0|abbr=on}} engine, dry weight {{convert|706|lb|kg|0|abbr=on}}, 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, {{convert|450|hp|kW|0|abbr=on}} engine, dry weight {{convert|710|lb|kg|0|abbr=on}}, 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, {{convert|425|hp|kW|0|abbr=on}} engine, dry weight {{convert|706|lb|kg|0|abbr=on}}, 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, {{convert|450|hp|kW|0|abbr=on}} engine, dry weight {{convert|714|lb|kg|0|abbr=on}}, 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.

;TIO-541

• Beechcraft Baron
• Beechcraft Duke
• Mooney Mustang
• Moynet 360-6 Jupiter

;TIGO-541

• Piper PA-31P-425 Navajo
• Norman Dube Aerocruiser 450 Turbo

{{pistonspecs|

|ref=TYPE CERTIFICATE DATA SHEET NO. E10EA

|type=Six-cylinder, air-cooled, horizontally opposed, direct-drive, fuel-injected, turbosupercharged aircraft engine

|bore=5.125 in (130 mm)

|stroke=4.375 (111 mm)

|displacement=541.5 in³ (8.87 litres)

|length=

|diameter=

|width=

|height=

|weight=449 lb (249 kg) dry

|valvetrain=

|supercharger=

|turbocharger=AiResearch turbosupercharger model T-1823

|fuelsystem=Bendix RSA 10AD1

|fueltype=100LL avgas

|oilsystem=

|coolingsystem=air-cooled

|power=310 hp (233 kW) at 2575 rpm

|specpower=0.57 hp/in³ (26.7 kW/L)

|compression=7.30:1

|fuelcon=

|specfuelcon=

|oilcon=

|power/weight=0.69 hp/lb (0.94 kW/kg)

|designer=

|reduction_gear=

|general_other=

|components_other=

|performance_other=

}}

• List of aircraft engines

{{Commons category}}

{{reflist}}

{{Lycoming aeroengines}}

TIO-541

Category:1960s aircraft piston engines