[1] The basic engine was originally designed and produced by ILO-Motorenwerke of Germany and was later acquired by the AMW Cuyuna Engine Company of Beaufort, South Carolina and marketed under the Cuyuna brand name.
Later the engine was marketed by Cuyuna under the Two Stroke International (2si) brand.
[1][2][3][4][5][6][7] The 460 is a conventional twin-cylinder engine that weighs 59 lb (27 kg) in its F35 aircraft version.
The engine features single capacitor discharge ignition, piston porting, tuned exhaust system, one or two slide venturi-type carburetors, fuel pump, a cast iron cylinder liner, ball, needle and roller bearings throughout.
The aircraft version was offered with cog belt drive or a gearbox reduction system.