OS FS-120S III (70N) W/F-5020 SILENCER

Description

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 double needle carburetor Type 70N with pressure regulator and fuel pump PD-07 ensures highly reliable, stable and regular operation over the entire rev range and acrobatic turns; as well as easy engine adjustment.
• The carburetor can be rotated 180 ° to direct the main needle and carburetor lever to the other side to facilitate installation in the dummy engine covers.
• The crankshaft, the camshaft and the piston ring have a special corrosion-resistant coating.
• Special ball bearings with grease filling and double seal.
• The larger volume expansion damper provides effective damping and gives the engine a deep soft sound.

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.

• Propeller proportions: Sport and Aerobatic: 13×11-13 “, 14×10-11“ / Model: 15×8 “, 16×6-8“, 18×5-6 “or three-blade 14×7“, 15×8 “
• Recommended fuel tank: 450-500 ml; The 450 ml tank is sufficient for about 14-15 minutes of flight, provided that you are not still on full throttle.
• Recommended fuel: at least 18% castor or synthetic oil, 5-15% nitromethane.
• Recommended spark plug: O.S. MAX typ F.

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.