Helicopters come in all sorts of weird shapes and sizes. In the early days of mass-produced helicopters in the 1940s and ...

Helicopters are indispensable in many areas, from emergency rescue operations to security and transport missions. However, ...

Most people think a powerless helicopter drops straight out of the sky. In reality, it autorotates—using free-spinning blades that act like a giant air brake, much like a maple seed. This breakdown ...