Formed 1 Jun 1961 at Old Sarum. Eventually became part of JWE on 1 Apr 1963. @ (optional) Send Locations YearsLocationICAO/FAA1961/63Old SarumEGLS Models Years Models 1961/63 Type 171 Sycamore HDU List of helicopters C/N VersionBuiltIn this Org In other Org 12898 Sycamore 3 1950 WV781 : ASWDU St Mawgan; CFS (H); HDU Old Sarum G-ALTD - WV781 12900 Sycamore 3 1952 WV783 : ASWDU St Mawgan; CFS (H); HDU Old Sarum - G-ALSP 13264 Sycamore 4 1955 XG503 : CFS (H); MCS; HDU; CFS (H) ; MCS XG503 13203 Sycamore 4 1955 XG506 : 72 Sq; Metropolitan Communications Sq; HDU wa354 Scrapped har10 1961 XP338 : 225 Sq; CFS (H); HDU; CFS (H)