90급 엔진의 새로운 신화에 도전 !!
OS의 Light Tuned Engine - 기존 HZ에서 한단계 업그레이드 튜닝 "R" Version!

공전의 Hit를 기록한 HZ의 Regulator 버젼입니다.
- 출력 증대를 위하여 부품의 경량화를 하고, Fuel-Air Flow를 대폭 개선한 기본튜닝이 되어있습니다.
T-Rex700N 등 90급 3D 기체에 최적의 제품입니다.

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The slim heatsink head fits into the fan shroud without having to cut it. So the fresh air through the fan cover effectively cools down the engine. The die cast head doesn’t create annoying high-frequency noise.

　

The new carburetor 61B is equipped with a thermo-insulator and in-flight needle control valve as standard accessories. Its fuel route is refined to correspond to high power. Double O-ringed main needle and O-ringed carburetor rotor prevent air leakage and engine power fluctuation. This new system secures stable and precise carburetor adjustment.

　

The newly designed back plate fulfils a role of heatsink. It is efficiently cooled down by the fresh air through the air inlets of full-covered helicopter body shell.

　

The piston is modified to attain a lighter body and better performance. The combustion gas presses on the piston ring from within through the five holes laid out on the piston top to minimize the blow-by gas.So the combustion energy is effectively transferred to the crankshaft.