Helicopters are versatile rotorcraft capable of vertical take-off and landing, making them ideal for missions where runways are unavailable. Powered by one or more rotors, they achieve lift and propulsion through spinning blades, allowing precise maneuverability in tight spaces. Used in various fields, helicopters serve critical roles in search and rescue, medical evacuation, military operations, and law enforcement. Their ability to hover and fly at low altitudes makes them valuable for aerial surveys, firefighting, and transportation in remote areas. Unlike fixed-wing aircraft, helicopters can fly backward, sideways, and remain stationary in the air. Pilots control flight direction using cyclic, collective, and tail rotor inputs. Despite higher operational costs and noise levels, helicopters remain indispensable for specialized aviation needs.