What does the O mean in Lycoming Engines?

carbureted engine
‘O’ or ‘IO’ So to start, the first letter, “O,” indicates a carbureted engine. If the letter “I” proceeds this first number, this indicates an injected-fuel system.

What is the difference between Lycoming and Continental engines?

Lycoming engines have the camshaft above the crankshaft, and Continental engines have the cam below the crankshaft. This seems to keep the Conti cams better oiled and therefore less susceptible to corrosion.

Where are Lycoming engines made?

Williamsport, Pennsylvania
Lycoming engines are built in Williamsport, Pennsylvania. Lycoming Engines’ Williamsport facility is focused primarily on the engineering, manufacture, assembly, test, and support of piston aircraft engines for manned and unmanned aircraft.

Why are aircraft engines horizontally opposed?

An advantage of horizontally-opposed engines is better forward visibility than radial or V-type engines. Today opposed engines have replaced all other types of piston engines for various reasons, including fewer cylinders for equal power and smooth running.

What kind of engine is a Lycoming O 360?

The Lycoming O-360 is a family of four-cylinder, direct-drive, horizontally opposed, air-cooled, piston aircraft engines.

What kind of engine does a Lycoming IO-390 have?

The Lycoming IO-390 is an O-360 which has had its cylinder bore increased by 3⁄16 inch (4.76 mm), developing 210 hp (157 kW). The O-360 family of engines comprises 167 different models with 12 different prefixes. All have a 361-cubic-inch (5.92-liter) displacement and 5.125 and 4.375 in (130.2 and 111.1 mm) bore and stroke.

What are the specs of a Hio 360 A1A?

Same as the HIO-360-A1A but with conical mounts, no AMC unit on the fuel injector and a 90° fuel injector mount. 180 hp (134 kW) at 2900 rpm, Minimum fuel grade 91/96 avgas, compression ratio 8.50:1. Same as the HIO-360-A1A except for the compression ratio and does not have tuned induction.