Based on the robust and highly versatile RAF Wessex HC.2, the HCC.4 was given a VVIP interior, and had a special navigation systems fit, which included the (at the time) innovative Decca moving map display. 
List of Operators of Westland Wessex HCC.4 | |
| From | Organisation with model Wessex HCC.4 | |||||
| 1963 |
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| 1969 |
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| Construction Numbers on database of Wessex HCC.4 | ||||||
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Construction Numbers | Help Us | |
| C/N | Year | History | ||
 | wa627 | 1969 |  XV732 : First flew 17 Mar 1969, delivered 25 Jun 1969 to RAF fo+ Queens Flt, brought HRH Prince Charles 30oct91 Queens Flight visit Antwerp 03Apr18 pictured in Queens Flight markings at RAF Museu+ XV732 : Aug17 at the RAF Museum in Hendon | |
| wa628 | 1969 | XV733 : First flew 13 May 1969, delivered 30 Jun 1969 to RAF + Queens Flt, noted visiting RAF Mount Batten on 3 May 19+ Queens Flt, visited the Air Tattoo, 23 Jun 1979 XV733 : Purchased by The Helicopter Museum, Weston-super-Mare i+ | ||