YS-0077  YS 120SRX Heli Engine  

The all new powerful YS 120SRX Helicopter Engine is built with the same mounting as 90-class engines, which makes it easy to add more power to existing 90-class helicopter platforms.
The 120SRX is proven with factory-preset regulator for consistent, reliable operation — positive fuel flow during all conditions.
Its now larger cylinder head has better cooling capabilies. Horsepower is also increased with the steel-lined back plate for minimizing drag.

The mounting on the YS 120SRX is of the same dimensions as the YS 91SR. So an engine upgrade requires no modifications.

Specifications:
Bore: 30.8mm
Stroke: 27.5mm
Weight: 544g
Displacement: 19.93cc