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The Roco 76022 is a set of two Tdrrs hopper wagons from ÖBB, lettered under the Rail Cargo Austria division and listed as a Roco 2024 new release. The two wagons form a rigid articulated double unit: they are joined by a fixed coupling bar (Deichsel) fitted in the inner NEM pockets, eliminating any play between the two elements and making them run as a single block. The oxide brown RAL 8012 livery and tampo printing with current Rail Cargo Austria logos place the set firmly in Epoch V-VI of the Central European freight fleet.
Swing roof and loading details
One of the most distinctive features of this set is the swing roof mechanism (Schwenkdach): the moulding reproduces the hinges, lateral articulated arms and operating levers that allow the curved cover to be tilted to one side at loading terminals. On the underside of the chassis, the funnel-shaped hopper outlets and discharge hatches are also reproduced in three dimensions. The tampo printing includes Rail Cargo Austria logos, maximum load tables by line category and ÖBB international registration codes.
Confirmed technical data
Each wagon measures 111 mm individually; coupled, the double unit reaches 222 mm in length over buffers (LüP). Each wagon has 2 axles, with full electrical insulation and NEM-standard flange profiles. The outer ends feature NEM 362 pockets with short-coupling kinematics (KK-Kinematik). The native system is two-rail DC; to run on three-rail Märklin layouts, the axles must be replaced with the Roco 40196 set.
Integration into a freight consist
As a double unit of short 2-axle wagons, the set negotiates turnouts and complex curved sections with ease. In an HO freight consist, chaining several Tdrrs double units together creates that characteristic visual rhythm of a homogeneous block train so typical of covered bulk traffic in modern Central Europe. The uniform Rail Cargo Austria colour and lettering means the set slots naturally behind a locomotive of the same epoch and operator, with no need for transition wagons.