Built by Boeing Commercial Airplanes, the 707 narrow body jet airliner first flew in 1957 and entered revenue service with Pan American World Airways in 1958. Versions of the aircraft have a capacity from 140 to 219 passengers and a range of 2,500 to 5,750 nautical miles. Developed as Boeing's first jet airliner, the 707 is a swept-wing design ......

The Hawker Typhoon and later the Tempest both powered by the Napier Sabre engine, brought an increased combat capability to the RAF in WW2, to face the advanced designs coming into service with the Luftwaffe. It was not enough to match the German combat capabilities, as for success Britain had to exceed the performance of the enemy fighters.