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  This is one of the O.S. FX series of high-performance engines. This series
of engines is used in sport and aerobatic aircraft. The FXs are designed to
use a muffler or tuned pipe.

       All FX engines are covered under the O.S. Max Two Year Warranty.

FEATURES: 1-piece crankcase
          Twin ball bearing-supported crankshaft
          Schnuerle porting (AKA Schnuerle scavenging)
          Advanced Bi-Metallic Liner. This process uses a double layer of
            plating material, rather than one thicker layer. This helps the
            metal to bond to the cylinder, and is more durable. Also, the
            plating process is more consistent, resulting in a more precise
            fit between piston and sleeve, for better compression, longer life.
          Side exhaust with muffler with rotatable exhaust outlet
          New carburetor with remote needle mounted on the backplate of the
            engine (to keep fingers away from the spinning propeller).
          Aluminum backplate.

INCLUDES: One Expansion style muffler (#E-4010) with screws
          One Assembled engine with carb
          One package illustrated instructions, parts list, and O.S. decal
          One O.S. #8 glow plug (OSMG2691)

SPECS: Displacement:  9.95cc (0.607 cu in)    RPM range:  2,000 - 17,000
       Bore: 24mm (.945")                     Stroke: 22mm (.866")
       Horsepower: 1.90 BHP at 16,000 RPM     Weight: 19.4oz, 23.6oz w/muffler
       Length: 84mm (3.31") the distance from the backplate to drive washer
       Width: 43mm (1.69") width of engine neglecting engine mounting flanges
         52mm (2.05") distance between centers of the mounting holes
       Height:100.5mm (3.956")            Exhaust port:  29.5mm x 9mm rect
       Crankshaft Thread Size: 5/16-24         43.8mm btwn exh mounting holes
       Props: Tuned Pipe: 12x9, 12x10, 12x11
              Sport: 12x6, 12x7, 12x8, 13x6, 13x7
              Break-In: 11x7

         High Speed Needle: 1.5 - 2 turns out from fully closed
         Low Speed Needle:  2mm gap between the needle and spray bar at full
                            throttle (looking down the neck of the carb)

REQUIRES: Fuel with 20% (minimum) lubricant content and 5%-15% Nitromethane
            (All 5%-15% fuels we carry meet these requirements)

                                                                    4-10-96/eke
                                                                          ir/jl
                                                               updt lmm 3/27/09



– If you need more information, use these O.S. resources –

Click Here: Manufacturer's Product Web Page
E-mail: enginesupport@hobbico.com
Web Site: http://www.osengines.com/
Phone: 217-398-8970


 
Postal Address:
O.S.
3002 N. APOLLO DRIVE, SUITE #1
CHAMPAIGN, IL 61822  








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