Regional airliner were replaced by progressively longer-range designs. In the immediate post-war era these were typically Douglas DC-3s, although even the De Havilland Dragon Rapide biplane airliner remained in service for some time. This "hand-me-down" process of supplying aircraft continued with designs like the Convair 440, Douglas DC-6 and Vickers Viscount also serving in this role while the first jets were introduced. By the mid-1950s, demand for even more economical designs led to the production of the first custom feederliners. These were almost always turboprops, which had fuel economy on par with piston engine designs, but had far lower maintenance costs. Often
Aerospace industry in the United Kingdom Hawker 800, Lockheed Martin C-130J Super Hercules and Lockheed Martin F-35 Lightning II. Current unmanned aerial vehicles in which the British aerospace industry has a major role include BAE Taranis, HAV 304 Airlander 10, QinetiQ Zephyr and Watchkeeper WK450. The British aerospace industry has made many important contributions to the history of aircraft and was solely, or jointly, responsible for the development and production of the first aircraft with an enclosed cabin (the Avro Type F), the first jet aircraft to enter service for the Allies in World War II (the Gloster Meteor), the first commercial jet airliner to enter