Lycoming R-680

R-680
Lycoming R-680
Type	Piston aero-engine
Manufacturer	Lycoming Engines
First run	1929

The Lycoming R-680 is a nine-cylinder air-cooled radial engine, the first aero engine produced by Lycoming. The engine was produced in two types, the E and B series; both are essentially the same. The B4E was available in a trainer version with a front exhaust collector "ring" for use without cylinder air baffles.

Data from Jane's.

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