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Roco's reference 7100038 brings the SNCF 150.Y.16 steam locomotive to HO scale in its DC version. At 265 mm overall length across locomotive and tender, it has a commanding physical presence on the track, and the combination of black and green livery gives it an instantly recognisable look within the Epoch III fleet. This is a model built for those who want a large-wheeled steam locomotive on their layout, not just in a display cabinet.
Mechanics built to run
The traction system combines five driving axles on the locomotive with additional drive on two tender axles, all connected via cardan shaft. The flywheel smooths starts and stops, and the two axles fitted with traction tyres help maintain grip on gradients or loaded sections. The connecting and coupling rods are die-cast metal, and the fine-spoked metal wheels keep the visual quality of the model sharp in motion. The PluX16 interface allows a decoder to be fitted without complex work if you decide to go digital later on.
Lighting and couplings
The dual directional LED headlights operate at both ends two white lights at the front and two at the rear, with flashing behaviour bringing the model to life both running and standing at the station. The NEM 362 close-coupling system makes integration with standard HO rolling stock straightforward, and the 358 mm minimum radius gives a clear guide to the type of layout where it will run without issue.
On the layout, leading a consist
A locomotive of these dimensions 265 mm, seven driving axles, tender included needs room to shine. At the head of an Epoch III consist, leading a rake of freight wagons or passenger coaches, the whole train gains in length and reads convincingly as a real working railway. The visual scale between the locomotive, the tender and the hauled stock is one of the strongest points of this type of model: the train looks neither short nor unbalanced. For anyone planning a layout with real railway presence, the Roco 150.Y.16 is a well-documented and purposeful choice.