Turboprop

A turboprop is a gas-turbine engine that drives an aircraft propeller through a reduction gearbox, with the turbine's own exhaust gases contributing only about a tenth of the engine's total thrust and nearly all remaining power going to the propeller. The Hungarian engineer Gyorgy Jendrassik published the turboprop concept in 1928 and patented it in 1929, building experimental engines at the Ganz Works in Budapest, though the aircraft intended to fly with his design, the Varga RMI-1 X/H, was destroyed in a bombing raid before its first flight. Britain achieved the first successful turboprop flight on September 20, 1945, with a Rolls-Royce Trent-powered Gloster Meteor testbed, and the Vickers Viscount later became the first turboprop airliner built and sold in large numbers.