Commanding Officer of Number 1 Squadron , Wing Commander Stephen Chappell (R), gives details to Catherine, the Duchess of Cambridge (L) as she sits in the cockpit of a RAAF Super Hornet of 1 Squadron as her husband Prince William (2/L) sits in the rear seat talking with Chief of Air Force, Air Marshal Geoff Brown (L) at RAAF Base Amberley, some 50kms outside Brisbane on April 19, 2014.  Britain's Prince William, his wife Kate and their son Prince George are on a three-week tour of New Zealand and Australia.   AFP PHOTO/POOL/William WEST        (Photo credit should read WILLIAM WEST/AFP/Getty Images)