FAIRFORD, UNITED KINGDOM - JULY 08: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 48 HOURS AFTER CREATE DATE AND TIME) Prince William, Duke of Cambridge, Prince George of Cambridge and Catherine, Duchess of Cambridge sit in a Squirrel helicopter as they visit the Royal International Air Tattoo at RAF Fairford on July 8, 2016 in Fairford, England. (Photo by Max Mumby/Indigo/Getty Images)
