The F36 is an air cooled, piston controlled 1-cylinder-2-stroke engine with diaphragm carburetor and Nikasil coated cylinder.
It has one of the highest power to weight ratio available on the 15 HP engine market.
Ideally suited for powered parachutes and all applications where weight is an issue.
Description from the website http://www.hirth-motoren.de/en/engine-f36.html on 2014-05-18.