Petra project Petra project from Vasyl Sydoruk Petra project Electro- air hybrid - Sand- yacht with vertical turbines and dual sail system Electro- air hybrid - Sand- yacht with vertical turbines and dual sail system Electro- air hybrid - Sand- yacht with vertical turbines and dual sail system Electro- air hybrid - Sand- yacht with vertical turbines and dual sail system Electro- air hybrid - Sand- yacht with vertical turbines and dual sail system Petra project - electro- air hybrid gLike Petra project Industrial Design Share R 7 n Vasyl Sydoruk industrial designer Detroit, MI Follow Contact