Known as a “cam axial” engine, this Profi inline 35 has a very unusual mechanism for the pison to drive the propellor shaft. The piston is inline with the propeller shaft. A connecting rod with a ball and socket joint at either end drives an angled cam plate to turn the prop shaft. It was designed by Alexander Ossovick. The idea was to eliminate the piston sticking out of the airplane for aerodynamic and scale appearance purposes.
The model engine is on loan from Daniel “Buzz” Brunkow. Mr. Brunkow has a large engine collection and is also a builder of engines and fine wooden models. Several unusual pieces from his collection are currently on display at the Miniature Engineering Craftsmanship Museum in Carlsbad, CA. Mr. Brunkow has also contributed a model wooden Cushman scooter and Chris-Craft Cobra for display.