Prototype: Austrian Federal Railways (ÖBB) class 638 passenger locomotive. Former Prussian class P 8. Boiler with 3 domes and without smoke deflectors. Four-axle box-style tender, pilot truck with solid wheels. Model: The locomotive and tender are constructed chiefly of die-cast metal. The locomotive has a motor with a bell-shaped armature and a flywheel, mounted in the boiler. It also has a built-in digital decoder and a sound generator with the formats mfx and DCC. The locomotive and tender are close coupled. 3 axles powered. Traction tires. The locomotive has dual headlights with warm white LEDs. Length over the buffers 116 mm / 4-9/16.