Virgin Atlantic, a trading name of Virgin Atlantic Airways Limited and Virgin Atlantic International Limited, is a British airline with its head office in Crawley, United Kingdom. The airline was established in 1984 as British Atlantic Airways, and was originally planned by its co-founders Randolph Fields and Alan Hellary to fly between London and the Falkland Islands. Soon after changing the name to Virgin Atlantic Airways, Fields sold his shares in the company after disagreements with Sir Richard Branson over the management of the company. The maiden flight from Gatwick Airport to Newark Liberty International Airport took place on 22 June 1984. The airline along with Virgin Holidays is controlled by a holding company, Virgin Atlantic Limited, which is 51% owned by the Virgin Group and 49% by Delta Air Lines. It is administratively separate from other Virgin-branded airlines. Virgin Atlantic Airways Limited and Virgin Atlantic International Limited both hold Civil Aviation Authority (CAA) Type A Operating Licences (AOC numbers 534 and 2435 respectively), both of which permit these airlines, operating as Virgin Atlantic Airways, to carry passengers, cargo and mail on aircraft with 20 or more seats. Virgin Atlantic uses a mixed fleet of Airbus and Boeing wide-body aircraft and operates to destinations in North America, the Caribbean, Africa, the Middle East and Asia from its main bases in London (Heathrow and Gatwick), and its secondary base at Manchester. The airline also operates Seasonal Flights from Glasgow and Belfast. Virgin Atlantic aircraft consist of three cabins: Economy, Premium (formerly Premium economy) and Upper Class (business). In 2012, Virgin Atlantic carried 5.4 million passengers, making it the seventh-largest UK airline in terms of passenger volume. In the year to 31 December 2013, it reported a £51 million group pre-tax loss (approximately US$87 million), however, in the year to 31 December 2014 the airline reported a return to pre-tax profit of £14.4 million. During July 2017, Virgin Atlantic announced their intention to form a joint venture with Air France-KLM. Under the agreement, Air France-KLM will acquire a 31 percent stake in Virgin Atlantic currently held by Virgin Group for £220 million.