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CAMBRIDGE , UNITED KINGDOM - JULY 13: Prince William, The Duke of Cambridge sits in the cockpit of an helicopter as he begins his new job with the East Anglian Air Ambulance (EAAA) at Cambridge Airport on July 13, 2015 in Cambridge, England. The former RAF search and rescue helicopter pilot will work as a co-pilot transporting patients to hospital from emergencies ranging from road accidents to heart attacks. (Photo by Stefan Rousseau WPA - Pool/Getty Images)

CAMBRIDGE , UNITED KINGDOM - JULY 13: Prince William, The Duke of Cambridge sits in the cockpit of an helicopter as he begins his new job with the East Anglian Air Ambulance (EAAA) at Cambridge Airport on July 13, 2015 in Cambridge, England. The former RAF search and rescue helicopter pilot will work as a co-pilot transporting patients to hospital from emergencies ranging from road accidents to heart attacks. (Photo by Stefan Rousseau WPA - Pool/Getty Images)