Leonardo da Vinci is one of the greatest scientists of the Renaissance, and many amazing inventions arose in his mind. One of them was the specific design of the helicopter, which, of course, could not have been created during the lifetime of the Italian inventor. However, now his plans have been used to create a quadcopter equipped with interestingly designed Archimedes propellers.
A team of engineers from the University of Maryland is responsible for creating a functional drone. The scientists used sketches by Leonardo da Vinci showing the construction of a “propeller” propelled by four people. In the project of the brilliant Italian, the helicopter was equipped with one such propeller, which meant failure in the event of an attempt to raise and direct the equipment. American engineers approached the matter differently.
The drone they created has as many as four plastic propellers resembling an Archimedes screw (the shape of a corkscrew). Instead of manually turning propellers, battery-powered motors were used. As with most quadcopters produced, flight control is possible by slightly changing the speed of rotation of the propellers, due to which the structure tilts in a certain direction.
The creator of the model himself was surprised that the device he created works. He also explained that when the propellers work, a swirling vortex of air is created at the edge of each of them, which is directed downward, thus creating an upward thrust. The operation of the quadcopter is very loud and the propellers are large, so there is no chance that commercial designs will be created based on this model.