The Tradition Continues...
O.S. leads the way in advanced 4-stroke engine technology, and you’ll see for yourself when you mount the FSa-72II in your model! Sport flyers will enjoy greater performance, while scale pilots will experience more realistic flight. Plus, everyone will benefit from the FSa-72II’s deep, rich sound.
- The adjustable F-5030 muffler can be rotated 360° and moved in or out for a perfect fit. Rich, deep sound is an added benefit.
- Features the same mounting bolt pattern as the FL-70 and the FS-70 Ultimate for easy replacement.
- A reversible carb and narrower camshaft housing simplify installation.
- Tighter tolerances and updated engineering reduce maintenance and ease set-up.
- Delivers more performance power to sport pilots and more realistic flight to scale pilots.
- Blow-by oil exits through the breather nipple on back plate for more stable operation
- Black rocker covers
- 61N aluminum body carburetor with rotary throttle lever, high speed needle valve, and low speed mixture control, extended intake tube eliminates reverse flow tendency of air/fuel mixture, carb is reversible 180°
- Adjustable F-5030 muffler for quiet operation can be rotated 360° for tight fitting applications
Product Specs
Bore
Crankshaft Threads
Crankshaft Type
Cylinders
Displacement
Engine (Only) Weight
Muffler Type
Muffler Weight
Plug Type
Power Type
Product Height
Product Length
Product Width
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RPM Range
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Total Weight
Compatibility
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Product Details
In The Box
- (1) FSA-72II Engine
- (1) F-5030 Silencer
- (1) Type F Glow Plug
- (1) Product manual
Needed to Complete
- 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% 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 12x7-8, 13x6-8 Scale 14x6-7
Club Points Information
Horizon Hobby RC Club:
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