Six helicopters of the RAF will make a farewell flypast over the harbour today before being sold to Uruguay.

In a rare event, all the aircraft of 28 (Army Co-operation) Squadron will fly in formation in a last tour of the territory, heading for the border before hovering above Central at about 3 pm and landing at Kai Tak.

The aircraft, all 33 and 34 years old, will then be handed over by British military chief Major-General Bryan Dutton to General Borucki of the Uruguayan Air Force which has bought them for an undisclosed sum.