That’s.... that’s completely different than the first one I saw. This is a drone flying sideways... guess you realized your first one wouldn’t work very well thru it’s design flaws?
Another is inside have 2 opposite each other a wind push 1 side(tube/pipe maybe?), same direction in the circle. Then the spin becomes stronger. If want it hollow, or outside is okay if hollow.
If want stronger just by shape, the wind push add (wind blow in here)>=(wind exit here) like this, like a funnel, if want it stronger >=- slimmer the funnel.
Damn, 9 years ago and still no video of trying it in an open field? Does the RC just not have enough range anyway so it would be pointless? Or just, no car?