Vintage RC Helicopters - OS Engines

OS Helicopter Engines

Ogawa Model Manufacturing Co Ltd of Osaka Japan.

OS were well established as manufacturers of powerful high quality engines by the end of the sixties.  Unfortunately they were more expensive than contemporary UK products due to import and distribution costs so could only be afforded by the more 'affluent' modeller.

1970

OS engine prices in Australia??

1971

OS Max-H60 - Engine test - Aug 1971

Note that in later years the designation 'H' would be used by most manufacturers as a generic code for the specific helicopter variant of an engine however, for this model in the OS range it is (as yet) not the case.

1975

OS Max 28-H quick look

1988 - OS 7 series carb strip  -

1988 OS 46 first look

1989 advert New releases.

1990 - OS32F-HX engine review  - 

1992 - OS 60B carb instructions

1994 - OS 20C carb instructions   3H and 20C carbs

OS Max28FSR-H Dykes piston ring (0.9 / 16K rpm) / Max32FSR-H Dykes ring and rear cone start / Max45FRS-H ringed(1.3 / 16K rpm) / Max50FSR-H dykes (1,45 / 15K rpm) / Max61VF-H rear exhaust ringed (1.7 / 16K rpm) / Max61VF-H ABC rear exhaust ABC piston/liner (1.7 / 16K rpm) / Max61FSR-H ringed (1.7 / 16K rpm) / Max61FSR-H ABC piston and liner (1.7 / 16K rpm) / Max 46HSF

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