The Junkers F.13 is a pioneering aircraft designed by Hugo Junkers and first flew in 1919. It is notable for being one of the world's first all-metal commercial airplanes, featuring a cantilever wing design and a monoplane structure. The F.13 was primarily used for passenger and cargo transport, with a capacity for up to four passengers. With a maximum speed of around 120 km/h (75 mph), the F.13 was equipped with a Junkers L.5 engine. Its innovative design and reliability made it popular among airlines in the early 1920s, contributing significantly to the development of commercial aviation.