A heavy lift quadcopter: a moulded body over a battery pack, four arms with their own motors and folding two blade rotors, a gimbal camera under the nose and landing legs with position lights. Dimensions 1.92 x 0.69 x 1.34 m (X x Y x Z). Origin at the footprint centre, resting on y = 0; metres, +Y up, nose toward +Z, wing span and wheel axles along X. Named pivots: prop-1 at (0.62, 0.52, 0.62); prop-2 at (-0.62, 0.52, 0.62); prop-3 at (-0.62, 0.52, -0.62); prop-4 at (0.62, 0.52, -0.62). The four rotors are separate nodes turning about their own vertical shafts; the camera gimbal is static. Rigid node-transform clips prop-spin drive named nodes on their own pivots. No skinning and no skeleton, so the retraction linkage, rotor flapping and lead-lag, propeller pitch change, the swashplate and wing flex are all deliberately static. Sixteen material palette of airframe white, deep blue, warm red, airfield yellow, bare aluminium, steel grey, charcoal, near black tarmac, light grey concrete, olive and tinted glazing, plus five emissive lighting materials for navigation, strobe, taxiway, threshold and interior lights. Flat colours, no texture maps. Original generic design with no manufacturer, type designation, livery, registration or operator marking. Free 3D model for Unity, Godot, Unreal, three.js and Blender. No collision or navigation data.