Reviews for O.S. .55 HZ-H Hyper Ringed Competition Helicopter Engine [OSM15630]

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Don Barrow/ swashnut
Verified Owner
Thursday, Apr 15 2010 (about 5 years ago)
O.S. .55 HZ-H Hyper Ringed Competition Helicopter Engine
this new 55 engine from OS is by far more powerful than the 50 hyper. 13.5 degrees pitch no worries. easy to tune runs very smooth with power to spare. all you 50 sized 3D addicts need to try this one for yourself to see what real power is all about! I have two outrage velocity 50's with this motor and also installed a flybarless system from Skukum and i can no longer bog the head. This motor seems to make its best power around 16500 rpm. i highly recommend a good quality tuned pipe to compliment this engines power curve.
KEVIN KRAPE
Verified Owner
Wednesday, Jan 27 2010 (about 5 years ago)
O.S. .55 HZ-H Hyper Ringed Competition Helicopter Engine
ALL I CAN SAY IS THIS MOTORS HAS LOTS OF POWER IN MY JS 50 3D UPGRADED FROM HYPER 50 12 DEGREES PITCH CLIMBS LIKE A ROCKET ITS WORTH EVERY PENNY!
JAMES FARR
Friday, Feb 18 2011 (about 4 years ago)
O.S. .55 HZ-H Hyper Ringed Competition Helicopter Engine
A lot of power more power than hyper 50, but bearings don't last very long.