More laddermill / spidermill ideas

[PierreB]

@Freeflying

@PierreB yes it does look a lot like laddermill? I’m just considering one ribbon? Golf balls.

Are dimpled so the fly further the same could happen here? I see no reason why you can’t dimple a ribbon. The micro vortices should help create lift? It why I suggest smooth side and rough side?

I find this observation particularly relevant (I evoked “making holes” in a previous post), and would merit a study on the subject concerned.

It has been observed that vents in parachutes change their aerodynamic characteristics.