The world's largest airliner- This day on 4 September 1949. First flight of the Bristol Type 167 Brabazon, British large propeller-driven airliner, designed to fly transatlantic routes from the United Kingdom to the United States. Bristol decided to submit the Type 167 proposal to meet Air Ministry Specification 2/44; following a brief evaluation period, a contract to build a pair of prototypes was awarded to Bristol. At the time of its construction, the Brabazon was one of the largest aircraft