There's not much to choose between a place to stand in and one that can be sat in, but the former is structurally easier to accommodate and sits well with the original concept. I've split it in two halves, with this lower section rising to elbow height like the prototype test-flown in Llanbedr.
The upper half will be formed of an open space-frame, and at this stage need not solely bear the loads transferred between upper and lower drones, as these can be carried by struts affixed to the forward and rear ends: not unlike those that linked the two airfoils that comprised the biplanes that introduced the original notion of flight.
This half-scale enclosure that will encapsulate the lower half of our dummy measures a half-metre high by a quarter square, and is attached permanently to its quadcopter. Eventually the whole accommodation will take the form of a removable container so as to make the assembly more practical as a personal air vehicle (PAV).
For now though it will merely be detachable from the upper half so that the chassis seen here will fit through a standard doorway, as functional design starts right here.
