High-Speed, Multifuel Engine: L9204 FMV

The L9204 FMV engine developed by Maschinenfabrik Augsburg-Nürnberg AG (M.A.N.) is an air-cooled, 4-cyl, in-line unit with remarkable multifuel capabilities. With a displacement of 162 in³, it is rated to produce 70 hp at 3800 rpm. The use of the FM combustion system, in addition to conferring multifuel ability, has made it possible also to achieve a high power/weight ratio.

This paper presents details of the engine design and operating data, and results of endurance testing are given.