 In January 1958 the DC-7C nonstop took 10 hours 45 minutes Idlewild to London, enabling Pan Am to hold its own against TWA's Super Constellations and Starliners.In 1957 Pan Am started DC-7C flights direct from the West Coast of the United States to London and Paris with a fuel stop in Canada or Greenland.The introduction of the faster Bristol Britannia turboprop by British Overseas Airways Corporation (BOAC) between New York and London from December 19, 1957 ended Pan Am's competitive leadership there.