It's been a worthwhile exercise, if only because in future I'll revert to square-section cantilevers which form an independent four-pronged drone.
With an outline that encapsulates the top end of the space-frame, it could therefore be dropped directly on top of it to secure.
This means too that the brackets can be dispensed with, along with the paraphernalia used to clip them to the topside of the passenger booth.
I'd like to get a handle on just how much more efficient co-rotating propellers of this kind are, as compared to contra-rotating.
Nonetheless the benefit of continuing with the current design ~ and I'm too far along to revert to any other ~ is firstly that the underslung propeller is well clear of the pilot and secondly that the leverage of the combined pair is greater than a co-located type.
Moving along from this 3/4 scale mockup, my preference is to try a full-scale version that can at least be sat in even if it has only the power to fly unladen.
It would look more like a step in the right direction, although it would involve a switch to carbon-fibre tubing.
The one benefit of it being populated by a pilot cabin, though, is that drone and cabin can be built separately.
Tho' as it won't happen any time soon, I'll post it to the VFS database for the record.
