Fixed-wing aircraft are a type of flying vehicle that use wings to generate lift, allowing them to fly. Unlike helicopters, which have rotating blades, fixed-wing aircraft have a stationary wing structure. They are commonly used for various purposes, including commercial travel, cargo transport, and military operations. These aircraft rely on engines, such as jet engines or propellers, to propel them forward. The design of fixed-wing aircraft can vary widely, from small private planes to large commercial airliners like the Boeing 747. Their ability to cover long distances efficiently makes them essential in modern transportation.