Avia M 337


The Avia M 337 is an inverted six-cylinder air-cooled inline engine. It was developed by the Czechoslovak company as a six-cylinder derivative of the four-cylinder M 332 engine, going into production in 1960. An unsupercharged version of the M 337 is designated as the LOM M137. Production transferred to Avia in 1964, and to Letecke Opravny Malesice in 1992.

Variants

;M 337A: Basic supercharged engine - not rated for aerobatics
;M 337R: Modified for pusher installation
;M 337AK: modified oil system for unlimited inverted flying. "Snap" aerobatics permitted.
;M 337AK1:AK fitted with alternator instead of generator
;M 337B:Increased max running speed - increased power - .
;M 337BK:Aerobatic version of B.
;M 337C:Increased compression ratio -
;M 137A: Unsupercharged version of M 337 take-off power. Aerobatics allowed.
;M 137AZ:As M 137A, with filtered air feed
;M 437: Gear ratio 0.7:1

Applications