



The Engine, Timing, Clutch, and Transmission



The three cylinder two-stroke engine used a Drehschieber ( turning disk, with intake holes for exact timing of the fuel-air mixture intake). The fuel-air mixture was sucked in by the vacuum in the three crankshaft housings as usual. The Drehschieber does the intake timing for all three cylinders. The engine was not a radial engine associated with aircraft and there is no need for a flywheel. All three cranks worked on one common gear. This arrangement and the recoil of the pistons in the turning direction secured a perfect balance of the moving parts. The cylinders were made of KS (Kolbenschmidt) iron cylinder walls and were embedded in the Silumin alloy engine housing. The only things that could be visibly identified as engine parts were the alloy cylinder heads with multiple cooling fins and the exhaust pipes located between the spokes of the cast alloy front wheel. These flat spokes were designed to serve as a functional cooling fan. The two-speed transmission was built as a differential transmission and used slope-meshed gears. The clutch was made of conventional clutch disks. The clutch (with the springs at the outer circle) was located in front of the transmission. The transmission was actuated by foot-operated steel cables. All parts of the engine allowed easy access for service work. After the removal of the engine – only two bolts and some wiring had to be removed – all important parts were within reach.

Tires, Shock Absorbers, Fuel, and Seat Adjustment



The tire could also be removed easily. You had to unlock a safety mechanism and then remove the tire completely with the split rim (very similar to the split rim developed by BMW). The front brake was installed in the hub. The rear suspension also had telescopic oil-filled shock absorbers. The gasoline flowed down through flexible hoses. A panel in the frame allowed easy access to the seat springs to adjust the hardness of the seat’s suspension.

Operational History