Platinum 300

Lycoming Aircraft Engines

Lycoming Engines is an American aircraft engine company, known primarily for its general aviation engines. For most of its history Lycoming has been part of the AVCO group as AVCO Lycoming. In 1987 AVCO was purchased by Textron to become Textron Lycoming. In 2002, the company was renamed Lycoming Engines.

Platinum 300 services, overhauls and rebuilds various Lycoming engines. Please contact us for a quote.

The aircraft piston engine prefixes are:

• AE—Aerobatic (dry sump)[clarification needed]
• H—Horizontal Helicopter
• I—Fuel Injected
• L—Left Hand Rotation Crankshaft
• O—Opposed Cylinders
• T—Turbocharged
• G—Geared (reduction gear)
• V—Vertical installation for helicopters
• S—Supercharged

Piston engines

• Lycoming R-680, 9-cylinder radial, 1929, 220–295 hp (164–220 kW), Lycoming's first engine (4.625 inch diameter x 4.5 inch stroke x 9 cyls = 680.41 in3)
• Lycoming O-145, 4-cylinder, 1938, (3.625x3.5=144.49/2.37 L)
• Lycoming IO-233-LSA, 4-cylinder, 100–116 hp (75–87 kW), announced 2008 (probable certification in 2009[12]
• Lycoming O-235, 4-cylinder, 108–118 hp (81–88 kW), introduced in 1940 and still produced, widely used on the Cessna 152 and similar GA designs
• Lycoming O-290, 4-cylinder, 125 hp (93 kW), downsized version of the 435 introduced in 1942 and largely ignored for aviation use, but widely used in ground-power carts sold to the US military
• Lycoming O-320, 4-cylinder, 150–160 hp (112–119 kW), used on Cessna 172
• Lycoming O-340, 4-cylinder
• Lycoming O-360, 4-cylinder, introduced in 1955 and widely used ever since, formed the basis for the 540 and 720
• Lycoming TIO-360-EXP, 4-cylinder, 180 hp (134 kW), announced 2008, non-certified turbocharged engine for homebuilding use[13]
• Lycoming IO-390, 4-cylinder, 210 hp (157 kW), announced (probable certification in late 2008)[13]
• Lycoming O-435, 6-cylinder, 185–260 hp (137–194 kW), also developed as a tank engine
• Lycoming O-480, 6-cylinder
• Lycoming O-540, 6-cylinder, 230–350 hp (172–261 kW), widely used on the Piper Navajo, Comanche, etc.
• Lycoming TIO-541, 6-cylinder, improved 540, featuring turbocharging on all models
• Lycoming IO-580, 6-cylinder, 300 hp (223 kW), engine introduced in 1997
• Lycoming GSO-580, 8-cylinder, original "580", produced from 1948 to 1961
• Lycoming IO-720, 8-cylinder, 400 hp (298 kW) engine introduced in 1961
• Lycoming O-1230
• Lycoming H-2470

Turbine engines

• Lycoming T53, turboshaft, 600 hp (447 kW), used on the Bell UH-1 "Huey" and others.
• Lycoming T55, turboshaft, 3 750 hp (2 796 kW), used on the CH-47 Chinook.
• Lycoming LTS101/LPT101, turboshaft and turboprop
• Lycoming ALF 502, turbofan, based on the T55 turboshaft, used on the BAe 146 and Bombardier Challenger 600.
• Lycoming AGT1500, turboshaft, 1 500 hp (1 119 kW), used on the M1 Abrams.
• Lycoming TF-40 marine gas turbine for the USN's LCAC hovercraft.