How the station flies its sondes: a two wheel trailer on a box chassis with a jockey leg and a tow ring, carrying an A frame winch whose cable drum turns on its shaft with the wire wound onto it, three lashed gas bottles in a rack and the folded balloon envelope stowed behind. Dimensions 3.17 by 1.93 by 3.69 m (X by Y by Z). Metre units, +Y up, +Z front; the origin sits on the ground at the footprint centre unless stated otherwise. Wind blown snow, packed track snow, blue glacier ice, dark teal and safety orange station cladding, off white insulated panel, galvanised steel, gunmetal, black polymer, white and grey and teal cold weather cloth, warm window glow and cold blue marker light. Rigid node-transform clips spin drive the named parts on their own pivots. There is no skinning and no skeleton; every other surface is static. Original invented archetype: it carries no maker, model or product name, and no markings, registrations or lettering. Only the cable drum turns; the wheels, the frame, the bottles and the envelope are static.