An engine layout featuring cylinders arranged in two horizontal banks on opposite sides of a central crankshaft. This design lowers the center of gravity of the vehicle and provides excellent primary balance, as the movement of the pistons on one side cancels out the vibrations from the other side.
Heard on the job
The old air-cooled models use an opposed cylinder layout that makes spark plug access a bit tricky on the bottom.
Also heard as
- flat engine