OS FSa-56II 4-Stroke /F-4040 Silencer
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Scale, 13x6, 13x7, 12x6, 12x7, 12x8
- The popular FS56-a now features upgrades that make it even better than before!
- Blow-by oil exits through the breather nipple on the back plate, for more stable operation
- Black rocker covers gives this engine a more impressive appearance
- The F-4040 silencer can be positioned to achieve the ideal fit
- Mounts with no-mod ease in the same space as the FS-56a
Mount the FSa-56II in your model, and see the difference advanced O.S. 4-stroke technology makes! Those benefits include a higher performance ceiling for sport flyers and more realistic flight for scale pilots. Plus, you'll also enjoy rich, deep sound that will enhance your flying experience.
This is the O.S. Engines FSA-56II Four Stroke Engine with the F-4040 Silencer. FEATURES: Blow-by oil exits through the breather nipple on back plate for more stable operation Black rocker cover 40NA carburetor Power Box designed muffler for quiet operation is fully positionable for tight fitting applications Two-year limited warranty through Hobby Services beginning at date of purchase INCLUDES: O.S. Engines FSA-56II Engine, F-4040 Silencer, Type F Glow Plug, 40NA Carburetor Header Pipe and Manual REQUIRES: Fuel: 10%-20% nitromethane with 18% lubricant. Synthetic, castor, or a synthetic/castor lubricant blend may be used. NOTE: Certain four-cycle fuels cannot be used due to low oil content However, SOME four-cycle fuels such as the Wildcat 4-Cycle 15% (CATP9109) may be used due to its 18% oil content. When choosing fuels for this engine, be sure to select a fuel with at least an 18% lubricant content. Propeller: Sport & Aerobatic, 13x6, 12x6, 12x7, 12x8 Scale, 13x6, 13x7, 12x6, 12x7, 12x8 SPECS: Displacement: 0.569 cu in (9.32cc) Bore: 0.945" (24mm) Stroke: 0.811" (20.6mm) Engine Weight: 13.9oz (394g) Output: 1.0 ps/0.99 hp @ 10,000 rpm Practical RPM: 2,400 - 13,000 Crankshaft Thread Size: UNF1/4 x 28 Height from Bottom of Mounting Tab to Top of Crankcase: 3.3" (84mm) Width of Crankcase below Mounting Tabs: 1.3" (34.1mm) Center of Mounting Holes Same Side: 0.69" (17.5mm) Center of Mounting Holes Opposite Side: 1.7" (44mm) Center of Front Mounting Hole to Drive Washer: 1.98" (50.3mm) Center of Rear Mounting Hole to Drive Washer: 2.6" (67.5mm) Center of Crankcase to Center of Needle Assembly: 1.3" (32.5mm) Center of Crankcase to Outer End of Crankshaft: 3.5" (88mm) Muffler Angle in Relation to Engine: 11° Mounting Hole Diameter: 0.14" (3.7mm) Carburetor; Needle Settings: High Speed: 2.5 - 3 turns out from fully closed Low Speed: Flush with carb body jxs 09/06/17 ir/jxs