This company builds four models of engines for use in light aircraft, homebuilt and experimental. UAV, autogyros, dirigibles, etc. Their powers are 40 hp, 80 hp, 180 hp, and 240 hp.

-The main series are the GR-CC400A and the GR-OC650A.

-The first engine is the GR-CC401A-Fi with a single rotating rotor or piston. It has electronic ignition and fuel injection. It delivers 40 hp at 6,500 rpm. Its displacement is 407 cc.

“GR-CC401-Fi”

-The GR-CC402A-Fi has a double rotor and gives 80 hp at 6,500 rpm. Its displacement is 814 cc.

“El GR-CC402A-Fi” (Foto Atkins)

-The GR-OC652A-Fi has 2 rotors and delivers 180 hp.
-The GR-OC653A-Fi has 3 rotors and delivers 240 hp.