Leonardo da Vinci never used his.
used for transporting people in the air
A helicopter can be used for transportation, recreation/ tours, cargo transportation, rescue, & as a "crane" as in sky crane.
Leonardo Da Vinci invented the concept of flight which includes helicopters. He should be known as an inventor, not an artist. Art does nothing to help people! Life would be nowhere without his...
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It was used to Wars and other Important stuff