Prototype aircraft are experimental planes designed to test new technologies, designs, or concepts before they are mass-produced. These aircraft allow engineers and designers to evaluate performance, safety, and efficiency in real-world conditions. By using prototypes, manufacturers can identify potential issues and make necessary adjustments before finalizing a design. Typically, prototype aircraft are built in limited numbers and may not be intended for commercial use. They often feature advanced materials and systems that are not yet available in standard models. Successful prototypes can lead to the development of new aircraft types, enhancing the capabilities of the aviation industry, including military applications and commercial air travel.