High Quality Content by WIKIPEDIA articles! The Whirlpool Aero Car or Spanish Aero Car is a cable car located in Niagara Falls, Ontario which transports passengers over a section of the Niagara River referred to as the whirlpool. The Aero Car is suspended on six interlocking steel cables each 25 mm (1 inch) in diameter. It is powered by an electric 50 horsepower (37 kW) motor and travels at approximately 7 km/h (5 mph). In the event of a power failure a diesel generator safely pulls the car back to dock. It also has a rescue car which holds four passengers and one operator which has never been used except for training purposes.