RedFlag has mentioned that the DoW owned an Enstrom.
Here is another Enstrom G-BBRS an F28A which was registered to Spooner Aviation in April 1975 and then sold to John Crewdson in July of the same year (according to CAA records).
This helicopter seems to have been on trials (or contract) to the Met.
Enstrom F28A G-BBRS registered to Helicopter Hire of Southend-on-Sea seen here on trials/contract to the London Metropolitan Police at Battersea Heliport 5th July 1977
Last edited by Earl of Rochester; 8th Jun 2013 at 09:11.