Helicopter

In the modern world, everyone knows how Aviation. One of them is a helicopter, which is common everyone knows. Unlike Airplanes, which fly by using Wings, helicopters use blades. Direct bevel Gears are used to spin the copter. Helicopters follow an IMPORTANT principle, Bernoulli’s principle. The pressure underneath (just like airplane wings) is higher, lifting the craft and lower pressure on the top. If you look closely, you’ll notice that the vehicle’s wings/blades are curved, and allow pressure to go.