A complete train of crane tender cars stands ready for the German Federal Railroad's (DB, now the DB AG) large crane cars such as the "Goliath". The "crane group", an experienced team of specialists, is permanently assigned to the the train and is constantly in readiness -
or in use. Work cars with different tools and machines as well as equipment cars for cables and other salvage material are present in this train in addition to the flat cars necessary for the transport of the crane that carry the boom and the counterweights. Additional cars
serve as living quarters for the crew. The enclosed cars for the "heavy" crane groups are chiefly converted from former mail cars. The windows, doors and interiors are altered to suit the cars" new assignment. Crew cars and work cars are equipped with a diaphragm connection at one end and usually remained coupled
together. The crane with its boom support car travels between this pair and the cable car during transport. The crane tender cars were initially painted in ocean blue and formed a striking contrast to the yellow crane cars in Era IV. At present the crane, boom support car and tender cars are being repainted a uniform gleaming red during overhauls.