The Hirth F-30 is a horizontally opposed four-cylinder, two-stroke, carburetted aircraft engine, with optional fuel injection, designed for use on ultralight aircraft and homebuilts.
[1][2][3][4] The F-30 is equipped with a dual capacitor discharge ignition system and is free-air-cooled, with optional fan cooling.
The cylinder walls are electrochemically coated with Nikasil.
[1][2][3] The engine runs on a 50:1 pre-mix of unleaded 93 octane auto fuel and oil.
[1][2][3] Data from Recreational Power Engineering[2]