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    This is the .46LA engine from O.S. Max designed for sport airplane use.
          This is a non-ringed engine with a Two-Year Warranty.
    This engine has a natural finish w/"O.S." & "46LA" on the side.

FEATURES: 1-piece crankcase
          Crankshaft is set in one long bronze Oilite bushing (no bearings)
          Schnuerle porting (AKA Schnuerle scavenging)
          Side exhaust
          Nylon backplate with remote needle valve
          40D carburetor
          Aluminum piston with Nickel-plated brass cylinder liner.

INCLUDES: One expansion-style muffler #E-3030
          One instruction manual and sticker sheet
          One assembled engine with glow plug
          Two 3x30mm phillips head screws to bolt muffler to engine

SPECS:    Construction: Aluminum 1-piece crankcase, piston, cylinder head
          Bore: 23.0mm (0.906")
          Stroke: 18.4mm (.724")
          Horsepower: 1.2 BHP at 15,000 RPM
          Distance from remote needle to end of crankshaft:     4.5" (114mm)
          Distance from center of engine to drive hub:          2.0"  (51.2mm)
          Distance from center of engine to end of crankshaft:  3.0"  (76.3mm)
          Height from crankcase bottom to top of cylinder head: 3.3"  (84.7mm)
          Height/crankshaft center to top of cylinder head:     2.7"  (69mm)
          Width including mounting ears:                        1.9"  (48mm)
          Width not including mounting ears:                    1.2"  (32mm)
          Width between mounting holes same side:               0.69" (17.5mm)
          Width between mounting holes opposite side:           1.6"  (40.5mm)
          Width between muffler mounting holes:                 1.4"  (36mm)
          Width of exhaust opening:                             1.1"  (29mm)
          Height of exhaust opening:                            0.3"   (7mm)
          Diameter of muffler body:                             1.3"  (33.5mm)
          Angle of muffler in relation to engine:               4°
          Weight: 272g (9.6oz without muffler)
          Crankshaft Thread Size: 1/4-28
          Recommended Props: Break In: 11x6
                           Trainer and Sport Models: 11x6, 11x7
                           Scale Models: 12x5, 12x6
          Practical RPM Range: 2,000 - 16,000 RPM (This engine will not turn
            this many RPM on the ground) RPM curve is when the engine unloads.

REQUIRES  Fuel with 5% - 15% Nitromethane and 18% (minimum) oil content
            (Most of the 5%-15% fuels we carry meet these requirements)

COMMENTS: The factory setting of the needle valves are as follows:
             High speed needle: Turn all the way in and back out 2 turns.
             Air Bleed screw: Turn all the way in and back out 2 turns.
          The coverplate for the FX Series will NOT work on this engine.

                      Available Pitts Muffler is SLIG2216.

                                                                   jxs 04/14/04
                                                                         ir/jxs



– 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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