OSMG0876   FL-70 RC 4-Stroke 

TECH NOTES
          This is the O.S. Max FL-70 4-Stroke Model Airplane Engine.
          This FL-70 engine provides easier handling and maintenance,
    lighter weight and lower cost to 4-stroke newcomers and Sunday fliers.

FEATURES: Approximately 20% lighter than the FS-70SII owing to a plastic cover
            plate, redesigned mechanism and smaller number of parts
          Easier handling 60W air bleed type carburetor
          Ring less piston/liner set for easier maintenance
          Redesigned muffler pressure system for stable power and response
            regardless of fuel level in tank
          Two year limited warranty

INCLUDES: One O.S. Max FL-70 4-Stroke Engine with F-4030 silencer,
          One T-fitting (for easier re-fueling)
          One type F glow plug, OSMG2692
          One instruction booklet
          One OS decal sheet

REQUIRES: Fuel: 5%-15% nitromethane with 18% lubricant. Synthetic, castor or
            a combination of synthetic and castor lubricant blend may be used.
          NOTE: Certain four cycle fuels cannot be used due to low oil content.
            When choosing fuels for this engine, the modeler must be sure to
            select a fuel with at least 18% lubricant content.
          Misc. starting and field equipment

SPECS:    Displacement:      0.699 cu in (11.45cc)
          Bore:              1.091 in (27.7mm)
          Stroke:            0.748 in (19.0mm)
          Practical RPM:     2,300 - 12,000 RPM
          Power Output:      1.1ps/11,000 RPM
          Weight:            18.3 oz (519g) All Parts included
                             16.5 oz  (467g)
          Recommended Props: Sport & Aerobatic - 12x7, 12.5x7 and 13x6
                             Trainer & Scale   - 12.5x7, 13.6-7

          Distance from center of engine to drive hub:           59.5mm (2.34")
          Distance from center of engine to end of crankshaft:     94mm (3.70")
          Distance/crankshaft center to muffler exhaust outlet:    85mm (3.40")
          Height from crankcase bottom to top of cylinder head: 107.5mm (4.23")
          Height/crankshaft center to top of cylinder head:      89.5mm (3.52")
          Width including mounting ears:                           54mm (2.13")
          Width not including mounting ears:                     35.4mm (1.39")
          Width between mounting holes same side:                  20mm (0.79")
          Width between mounting holes opposite side:              45mm (1.77")
          Diameter of muffler body:                              25.8mm (1.02")
          Angle of muffler in relation to engine:                   20°
          Muffler/Header Thread size:                            M11x.75
          Crankshaft thread size:                                1/4-28

COMMENTS: During the break-in process, OS recommends using the same fuel and
            prop as you intend to use for flying your model.
          Wrenches, choke valve extension and mounting template are no
            longer included per O.S.
          Some differences between 4-Stroke and 2-Stroke engines
           -4-strokes are quieter
           -4-strokes get better fuel economy
           -2-strokes generate more RPM (11,000-13,000 RPM with prop
              while 4-strokes rev to around 9,500 RPM)
           -4-strokes generate much more torque and will swing a larger prop
           -4-strokes have a realistic sound, like a real airplane

                                                                
ACCESSORIES
          THIS IS THE O.S. MAX FL-70 4-STROKE MODEL AIRPLANE ENGINE.
FEATURES: APPROXIMATELY 20% LIGHTER THAN THE FS-70SII, 60W AIR BLEED TYPE
          CARBURETOR, AND RING LESS PISTON/LINER SET.
REQUIRES: REQUIRES: FUEL WITH 5-15% NITRO, 18% OIL CONTENT AND FIELD EQUIPMENT