Design of a special engine, it is not an X- nor a horizontal H-engine. There are four small displacement engines mounted on a block. It is in development during 2017.

"Concept drawing of EWAK engine"

-Baptized as model UGM-3644. The brochure tells us that it has a total displacement of 365 cc. It is a four-stroke engine that gives 23 hp at 2,700 rpm.

"The EWAK engine with propeller and hub"