This was the fourth HS.125 built, registered G-ASEC in 11.62 and used by De Havilland then HSA as a demonstrator, including appearance at the 1964 Farnborough show. Bought by BAF in Jun 1979 and leased to the Group 4 security group just before this photo, with only 4,000 hours and a similar number of landings recorded. Wfu May 1985 and later scrapped at Southend. Seen here with a Euroair logo on the tail.