 The Queen's Helicopter Flight is part of The Queen's Private Secretary's department of the Royal Household, and is tasked by the Royal Travel Office at Buckingham Palace.From 1998 to 2009, it used a single maroon Sikorsky S-76C+ twin-engined helicopter, registered "G-XXEA" in honour of "G-AEXX", the Airspeed Envoy that the Queen's uncle, the Prince of Wales first flew in the King's Flight.The helicopter, the first airframe dedicated solely to royal use, entered service on 21 December 1998.