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Arrow SNC 500

The Arrow 500 is a twin-cylinder, horizontally opposed, two-stroke, single or dual ignition, aircraft engine that was designed for ultralight aircraft by Arrow SNC of Italy.
The Arrow family of engines are modular in design and share the same pistons, cylinders and gearboxes assembled around different crankcase designs, giving one-, two- or four-cylinder engines.
The 500 is a conventional twin-cylinder engine that weighs 88 lb (40 kg). The engine features single or optional dual ignition, reed valve induction, free air cooling, tuned exhaust system, a single slide venturi-type Bing carburetor, fuel pump, Nikasil cylinder coatings. The engine was offered with a gearbox reduction system that included a one way clutch. Starting is electric starter with no provision for a recoil starter.
The 500 produces 65 hp (48 kW), runs on premium unleaded auto fuel and has a recommended time between overhaul of 400 hours.
The tuned exhaust supplied with the engine has been criticized as "cumbersome" and needing modification to fit most aircraft.
Arrow engines are no longer in production.


Arrow 500
Type: Twin-cylinder, horizontally opposed two-stroke aircraft engine
Displacement: 500 cc (30.51 cu in)
Dry weight: 88 lb (40 kg)
Valvetrain: reed valve
Oil system: premixed oil and fuel
Cooling system: air-cooled
Reduction gear: gearbox
Power output: 65 hp (48 kW)


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