SAITO FG 73R5 72.7cc, 5-Cylinder Radial Engine

SAITO FG Series

The SAITO FG engines are carefully manufactured gasoline four-stroke engines specifically designed for model aircraft, combining high performance and durability with low weight.
The engine is based on the FA-220 glow engine with some detail changes, featuring a gasoline-compatible carburetor and an electronic ignition system. This allows for high fuel efficiency with lower fuel costs, reduced model soiling, and hand-starting in the normal direction of rotation – no starting tools are required.

Special Features:

• Cylinder and cylinder head are a single component; this design saves weight, prevents distortion, and improves cooling.
• The cylinder bore is hard-chromed and designed without a liner.
• High-silicon aluminum piston with piston ring.
• Robust connecting rod forged from high-strength aluminum; due to gasoline operation, the lower connecting rod eye is bushed with phosphor bronze.
• Crankshaft made of high-strength forged chrome-molybdenum steel, double ball-bearing.
• Camshaft, front-mounted, space-saving gearbox and steep cam profiles for optimal filling.
• High cylinder efficiency due to hipped-roof combustion chamber.
• The exhaust sound corresponds to that of a typical four-stroke single-cylinder engine.
• Carburetor specifically designed for four-stroke gasoline engines, with diaphragm pump.
• Electronic battery ignition system specially designed for this engine for spark plug operation.
• Standard two-stroke fuel mixture (e.g., moped or lawnmower fuel).