Aviation Engines

Lycoming

Founded originally in Williamsport around 1908, the company produced a range of engines for transport applications, in a very similar way to Continental. After becoming a subsidiary of the Auburn Motor Co (owned by E.L. Cord) it produced a range of small radial engines, leading in 1932 to its position as part of the Aviation Corporation. It produced the R-680 and R-530radial for many years up to the end of WW2.

Lycoming 75hp Aero Engine

Lycoming 75hp Aero Engine

Lycoming 75hp Aero Engine

Lycoming 75hp Aero Engine

The Lycoming Manufacturing Co was already established with a number of small engines for light aircraft when it got involved with the Army in 1932 on a project for a 12-cylinder liquid cooled flat-12 engine. While Continental had a greater degree of financial help from the Army, Lycoming put a lot of its own money into the project which as a result was to proceed at a greater pace than that of its rival.

Lycoming R-680 Radial Aero Engine

Lycoming R-680 Radial Aero Engine

By 1935, a contract was placed by the Army, and after the single-cylinder tests were passed, the 0-1230 engine was started, based on a flat-12 layout to enable fitting inside a wing. Development was faster than the parallel Continental project, a fact that was commented on at the time by the Army.

The 0-1230 flew for the first time in 1938, installed in the nose of a Vultee XA-19A, originally designed for the R-1830. The 0-1230 passed its type tests at 1000hp in 1939, although it never made series production.

Another development, the H-2470, was to take up Lycoming's time and money, but it was another dead-end project as the Army and Nayy had standardised in big air-cooled radials for their aircraft, and none of the flat-12 or H engines ever realised production quantities. A last-gasp effort at big engines in 1941 was the XR-7755, a huge 36-cylinder 7755 cu in monster, it gave 5000 hp in 1944 and was aiming at 7000 hp, but propellor technology and the advent of the turbo-prop and turbo-jet effectively killed it off.

After WWII, the company concentrated on its engines for light aircraft, and is the largest producer of small air-cooled engines in the world today.

Lycoming R-680 Radial Aero Engine

Lycoming R-680 Radial Aero Engine

Lycoming R-680 Radial Aero Engine

Lycoming R-680 Radial Aero Engine

Lycoming R-680 Radial Aero Engine

Lycoming R-680 Radial Aero Engine


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