The engine is single-cylinder, 2-stroke, with compression ignition, air-cooled, inlet through the crankshaft, loop purge (3 bypass channels), has a cylinder block chrome inside, a piston made of aluminum alloy with a high silicon content.
Designed for installation on training cord and free-flying aircraft models.
Piston stroke N = 15.5 mm
The cylinder diameter D = 14.3 mm.
Working volume V = 2,489 cm3 Power at 19600 rpm. N = 0.38 kW / 0.52 HP
Crankshaft speed range n = 12500 -: - 25000 rpm.
Engine weight = 130 gr.
Lighting kerosene - 44%
The ether is medical - 35%
Additive - 1%
Castor oil - 20% (or: motor oil 5-10% + castor oil 10-15%)
Run-in the engine on fuel containing at least 20% castor oil.