OS
OS55HZ
This is a high performance engine expressly designed for 50 size helicopters. Since engine mounting and muffler mounting bolt patterns are the same as the 50SX-H Hyper, it can be installed in the existing 50 size helicopters.
The newly designed 40L carburetor enables to adjust idling, hovering and high speed independently. Close to 60 size power offers wide power range suitable for sport flight as well as 3D flight. The cover plate has a cell to accept a sensor designed to install in the cover plate from the Futaba GY-701 Governor.
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