Helicopters are versatile aircraft that use rotating blades to generate lift and thrust, allowing them to take off and land vertically. This unique capability makes them invaluable for various applications, including search and rescue, medical transport, and military operations. Helicopters can hover in place, making them ideal for accessing hard-to-reach areas. The design of a helicopter typically includes a main rotor for lift and a tail rotor for stability and control. Notable models include the Bell 206 and Sikorsky UH-60 Black Hawk. With advancements in technology, helicopters continue to evolve, enhancing their efficiency and safety in the skies.