Crazy as it sounds, da Vinci Flight Spiral is actually flying! https://youtu.be/YsG-Mcn29kg
‘Crimson Spin’ brings da Vinci helicopter design to life, Vertical Oct 12, 2022 Article by Ben Forrest Austin Prete image https://verticalmag.com/features/crimson-spin-brings-da-vinci-helicopte…
Bet that Leonardo himself would be proud! https://de.wikipedia.org/wiki/Leonardo_da_Vinci#/media/Datei:Macchina_v…
