Classic four-stroke O.S. engines The FS-Surpass MAX Series is a proven, highly reliable and powerful powertrain for years, making it the world's first choice for modellers and aerobatic models. As a result, you can benefit from a diverse range of kits and building plans for model aircraft designed for O.S. engines in recent decades.
The FS 120 SIII is a four-stroke valve engine designed for aircraft of all kinds; is especially suitable for RC models and aerobatic models. It is fitted with a double needle carburetor type 70N with pressure regulator and fuel pump PD-07. Expansion muffler F-5020 is also supplied as standard. It is also possible to use flexible reducers ('gooseneck') with a length of 120 to 240 mm, which are particularly suitable for concealed installation inside the engine cover of dummies.
The crankshaft has a thread for the UNF 5 / 16-24 propeller nut, and the O.S. for reliable propeller mounting.
Engine set includes: FS 120 SIII engine with RC carburetor 70N with pressure regulator and fuel pump PD-07, muffler F-5020, operating instruction manual.
Displacement [ccm] | 19.96 |
Cylinder count | 1 |
Bore [mm] | 30.4 |
Stroke length [mm] | 27.5 |
Operating RPM [ot./min] | 2000 - 12000 |
Motor power (při 12000 ot./min) [kW] | 1.54 |
Power (při 12000 ot./min) [HP] | 2.1 |
Weight (motor) [g] | 920 |
Weight (tlumič) [g] | 80 |
Recommended tank volume [ml] | 450 - 500 |
Recommended spark plug | O.S. MAX Typ F |
Propeller nut thread | UNF 5/16-24 |
Explozívní a rozměrový výkres, seznam náhradních dílů | 05.03.2015 | ||
Exploded view | Explozivní výkres motoru OS MAX FS 120SIII | 13.05.2013 |