Tender Steam Locomotive

Mainline 4-6-0 tender steam locomotive, the engine only, about 12 m over buffers and centred on x = 0: a leading bogie that pivots so it sits on any kit curve, three large driving axles with coupling rods and valve gear turning on the rig.

风格：low-poly, flat-shaded vertex colors, no textures, single shared material, so any set of these merges to one draw call; shares palette and scale with its kit