Who has never wondered how a helicopter To fly? The concept of a means of transport capable of being suspended in the air, moving back and flying slowly to face tight passages is certainly fascinating. Testimonies of studies on these aerogiri (Because using the term aircraft would be improper, given that it presupposes the presence of wings to generate lift) go up to the fifth century AC in China, but already in nature we find examples that may have inspired the concept, like the seeds of the acero. Here is therefore Ten things to know about helicoptersfrom history to operation, passing through characteristics of use and exceptional specimens.
