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Bagger 288 (Excavator 288), built by the German company Krupp for the energy and mining firm Rheinbraun, is a bucket-wheel excavator or mobile strip mining machine. When its construction was completed in 1978, Bagger 288 superseded Big Muskie as the heaviest land vehicle in the world, at 13,500 tons.[1] In 1995, it was itself superseded by the slightly heavier Bagger 293 (14,200 tons). NASA's Crawler-Transporter still remains the largest self-powered land vehicle in the world, since bucket-wheel excavators are powered by an external power source, and the Overburden Conveyor Bridge F60s hold the title of largest land vehicle of any type by physical dimensions. The Terex RH 400 front shovel has two Cummins QSK 60-C two-stage, turbocharged, aftercooled and intercooled, 16-cylinder engines producing 4,500 net horsepower (HP). It comes standard with a TriPower shovel attachment, independent oil cooling system, five-circuit-hydraulic system, electronic-hydraulic servo control, torque control in the closed-loop swing circuit, automatic central lubrication system, Xenon working lights, Board Control System (BCS), spacious cab, and a hydraulically-driven radiator fan with electronically controlled speed.