Helicopter models refer to the various designs and types of helicopters that are produced for different purposes and functions. These models differ in size, shape, capabilities, and specifications, catering to diverse applications such as military operations, emergency medical services, aerial firefighting, and transportation. Helicopter models can include single-engine or multi-engine configurations, and may vary in rotor design, performance features, and onboard technology. Some well-known helicopter models include the Bell 206, Sikorsky UH-60 Black Hawk, and Eurocopter AS350, each tailored to meet specific operational requirements. Helicopter models are often categorized based on their intended use, such as utility helicopters, transport helicopters, attack helicopters, and reconnaissance helicopters. These classifications help in identifying the best helicopter model for specific missions or tasks.