Although the Egyptians did not oppose the attacks and there were no Valiant combat losses incurred, the results of the raids were reportedly disappointing. Although the Valiants dropped a total of of bombs, only three of the seven airfields attacked were seriously damaged. The Egyptian Air Force had been effectively destroyed in a wider series of multinational attacks of which the Valiant bombing missions had been a part. It was the last time the V-bombers flew a live combat mission until Avro Vulcans bombed Port Stanley airfield in the Falkland Islands during the Falklands War in 1982. Valiant tankers were flown by No. 214 Squadron at RAF Marham, operational in 1958, and No. 90 Squadron at Honington, operational in 1959. The two lost their bomber role and became full-time tanker squadrons on 1 April 1962. Aircraft assigned to the tanker role were fitted with a Hose Drum Unit (HDU or "HooDoo") in the bomb bay. The HDU was mounted on bomb-mounting points and could be removed if necessary; this arrangement meant that the bomb bay doors had to be opened in order to give fuel to a receiver aircraft. A control panel at the radar navigator station in the cockpit was used to operate the HDU. All of the HDU equipment was designed to be easily removable so that the aircraft could be reverted to the bomber role. With in-flight refuelling probes fitted to Valiants, Vulcans and Victors and Valiant tankers available to give fuel and extend the range of the aircraft being refuelled, the RAF Medium Bomber Force could go beyond "medium range", and the RAF had a long range capability. Long-range demonstration flights were made using Valiant tankers pre-deployed along the route. In 1960, a Valiant bomber flew non-stop from Marham in the UK to Singapore and in 1961 a Vulcan flew non-stop from the UK to Australia. The two tanker squadrons regularly practised long range missions, refuelled by other Valiant tankers on the way. These included non-stop flights from the UK to Nairobi, Singapore and Sydney. In 1963 a squadron of Gloster Javelin fighters was refuelled by tankers and flew in stages from the UK to India (Exercise "Shiksha") to support the Indian Air Force in a dispute over their border with China. Other aircraft refuelled by Valiants at this time included Victor and Vulcan bombers, English Electric Lightning fighters, and de Havilland Sea Vixen and Supermarine Scimitar fighters of the Royal Navy.