The FSV series represents a new generation of O.S. four-stroke valve engines. Compared to their predecessors, the FS-Surpass and FS-α models, they boast higher performance with the same mounting dimensions, allowing you to easily take advantage of the wide selection of model aircraft kits and plans developed for O.S. engines over the past decades.

• The new lubrication system eliminates the need for crankcase venting, thus eliminating the overflow hose common in previous generations of engines.
• The new twin-needle carburetor, type 60PA, ensures stable and smooth running throughout the entire RPM range and easy engine adjustment. The carburetor can be rotated 180° to orient the main needle to the other side of the engine.
• The new muffler, with a larger volume and the ability to adjust the rear section with the exhaust pipe in the desired direction, provides effective damping and gives the engine a deep, mellow sound.
• Separate covers for the engine's intake and exhaust valves provide a more realistic appearance.

The FS 95V is a four-stroke valve engine designed for all types of model aircraft, particularly suitable for RC models. It is equipped with a twin-needle carburetor type 60PA. The basic package also includes an F-5050 type exhaust muffler. The orientation of the exhaust pipe can be changed by rotating the rear part of the muffler 360°, and the orientation of the muffler body and the distance between the cylinder head and the muffler can be adjusted thanks to a threaded adapter bushing.

• The crankshaft has a thread for a propeller nut UNF 5/16-24. The engine comes with a set of O.S. locking nuts for reliable propeller attachment.
• Recommended propeller sizes: Sport and aerobatics: 13x7~9", 14x6~8" / Scale aircraft: 15x6~8"
• Recommended fuel tank: 300-400 ml; a 300 ml tank is sufficient for 12-13 minutes of flight time, assuming you are not constantly flying at full throttle.
• Recommended fuel: at least 18% castor or synthetic oil, 5-20% nitromethane.
• Recommended spark plug: O.S. MAX Type F.

The engine kit includes: FS 95V engine with 60PA RC carburetor, F-5050 exhaust muffler, instruction manual.Technical Data

• Mounting hole spacing longitudinal [mm]: 25mm
• Mounting hole spacing transverse [mm]: 52mm
• Manufacturer part number: OS30900
• Version: 2-stroke
• Mounting hole Ø [mm]: 4.2mm
• Bore [mm]: 29.0mm
• Width [mm]: 61mm
• RPM range approx.: 2100-11000 rpm.
• Recommended propeller: 13x8 - 14x8
• Total weight [g]: 592g
• Height approx. [mm]: 119mm
• Stroke [mm]: 23.6mm
• Displacement [ccm]: 15.55mm
• Cooling: Air
• Length to hub: 115.7mm
• Power kW (HP) 1.2 (1.7) at 10,000 rpm
• Carburetor: 69P
• Shaft Ø [mm]: 7.8mm
• Shaft thread: UNF-5/16-24