[1][2] 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 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.
[1] The 500 produces 65 hp (48 kW), runs on premium unleaded auto fuel and has a recommended time between overhaul of 400 hours.
[1][2] The tuned exhaust supplied with the engine has been criticized as "cumbersome" and needing modification to fit most aircraft.