A helicopter consists of several key components that work together to enable flight. The main parts include the rotor system, which generates lift, and the fuselage, which houses the cockpit and passenger area. The tail rotor helps stabilize the helicopter and counteracts the torque produced by the main rotor. Other important components are the engine, which powers the helicopter, and the landing gear, which supports the helicopter during takeoff and landing. The avionics system provides navigation and communication capabilities, ensuring safe operation in various conditions. Each component plays a crucial role in the helicopter's overall functionality.