SAITO FG 90 R3, 3-cylinder 4-stroke gasoline radial engine, 89.99cc, Aeronaut # 710089
As of April 2026 · Prices incl. VAT unless stated otherwise.
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SAITO FG 90 R3, 3-cylinder 4-stroke gasoline radial engine, 89.99cc, Aeronaut # 710089
SAITO FG-90R3, Petrol Engine, 3-Cylinder Radial Engine with Electronic Ignition
Aeronaut # 710089
SAITO FG engines are carefully manufactured petrol 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 plug engine with some detailed modifications, including a petrol-compatible carburettor and an electronic ignition system. This allows for high fuel efficiency at lower fuel costs, as well as reduced model contamination.
Manual starting in the normal direction of rotation is possible – no starting tool is required.
Special features:
- Cylinder and cylinder head are a single component; this design saves weight, prevents distortion, and improves cooling
- The cylinder running surface is hard-chrome-plated and designed without a liner
- High-silicon aluminum piston with piston ring
- Robust connecting rod forged from high-strength aluminum; due to petrol operation, the lower connecting rod eye is bushed with phosphor bronze
- Crankshaft made of high-strength forged chrome-molybdenum steel, with 2 ball bearings - Camshaft, front-mounted, space-saving gearbox and steep cam flanks for optimal filling
- High cylinder efficiency due to hip-roof-shaped combustion chamber
- The exhaust sound corresponds to that of a typical four-stroke single-cylinder engine
- Carburettor specially designed for four-stroke petrol engines, with diaphragm pump
- Electronic battery ignition system specifically for this engine for spark plug operation
- Normal two-stroke fuel mixture (e.g., moped or lawnmower)
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