The post @PierreB shared recently on the Spinning Janny and the SpinBox Kite
effectively had a spinning flying shroud
However
I suspect these would be very hard to scale up in ram air form (reliant on a stiffened form other than the spinning bol type which doesn’t lift itself reliably to any useful elevation)
They only rotate from a tiny bearing and bridling so would not be able to generate much (if any) torque as there’s nothing to react against. (maybe you could fly one against a generator from the tail of a more rigid kite / arch?)
Nor do these droopy tail cylinder rotor tubes have much speed, there’s a lot of fabric, rope and stiffener rod being dragging through the air
Pretty though
