With the USAF's withdrawal from Manston, the airfield became a joint civilian and RAF airport from 1960 and was thence employed for occasional package tour and cargo flights, alongside its continuing role as an RAF base. The Air Cadets used the northern side of the airfield as a gliding site, and No. 1 Air Experience Flight RAF flying de Havilland Canada DHC-1 Chipmunks was also based there. Thanks to its long runway, Manston was designated as one of the UK's MEDAs (Military Emergency Diversion Airfields) for emergency military and civilian landings. Others included RAF Greenham Common, RAF Aldergrove and RAF Machrihanish. For a number of years, the base operated as a Master Diversion Airfield, open 24 hours every day. Manston, uniquely in the UK, also had a 'foam carpet' crash landing system, where two tractors would pull tankers laying a metre thick layer of foam over a strip of runway, for aircraft with landing gear problems. Search and rescue base RAF Manston was home to a helicopter search and rescue (SAR) flight from No. 22 Squadron RAF from 1961, operating Westland Whirlwind aircraft. The flight was withdrawn in 1969, but the outcry led to the RAF contracting Bristow Helicopters from 1971 to 1974 to provide a continued service (also using MK3 Whirlwhinds). In 1972, the Bristow crew was awarded the "Wreck Shield" for "Most Meritorious Rescue in 1972" by the Department of Trade and Industry. In 1974, the RAF SAR teams returned, with No. 72 Squadron RAF operating two Westland Wessex HC2 aircraft to replace the Bristow cover. The flight was transferred back to No. 22 Squadron in June 1976. In 1988 No. 202 Squadron RAF moved to Manston with their Westland Sea King HAR.3, with the Wessex aircraft moving to RAF Coltishall. The Sea Kings remained at Manston until July 1994, when SAR activity at the base was halted, and SAR cover for the channel relocated to RAF Wattisham. Units The following units were here at some point: Civilian use For some years two commercial airlines operated out of Manston, Invicta Airways and Air Ferry. Many thousands of holiday passengers started their journeys from Manston. From 1989 Manston became styled as Kent International Airport, and a new terminal was officially opened that year by the Duchess of York. Closure In 1996, Manston's satellite station RAF Ash, was closed, and in 1999, it was decided to close the RAF Manston