OS Logo OS Engines

FS120SP-Surpass 

Click here to return

Fitted with a Roots type supercharger, the power output of the FS120SP is raised by a staggering 30~40%. More importantly, the torque is also dramatically increased, enabling the engine to be operated under heavier loads - with coarser pitch propellers at lower rpms - which is very important in F3A contest flying where competitors qualify for noise reduction bonus points. Other features of this impressive engine include a PG-02 fuel pump, C14 carburetor with built-in pressure regulator, nine ball bearing and a special safety locknut assembly as standard. 

Like the Goldberg Super Chipmunk we think this model is an ideal low wing scale model for the beginner, if fitted with a suitable engine size of around .60 to .75 2 Cycle.

 

                                                    Displacement: 19.96cc 1.218cu. in.

                                    Bore:

30.4mm 1.197in.

                                       Stroke:

27.5mm 1.083in.

                                                   Power Output:

2.5/10,000 (BHP/rpm)  

                                                    Practical RPM:

2,000~11,000  

                                       Weight:

1,030g 36.36oz