Thanks to HD, WHBM and others my original questions have been answered.
But the thread now has a 'life of its own' and this has actually made it much more interesting than my original questions warranted
So far I have only found one picture of the Westward Islander on 'Shuttle Duty':
I had completely forgotten that G-LINK would overnight at the BA (formerly BEA) Helicopter Base at Gatwick Airport South.
Bumz, I would be interested in seeing a photo of the 'hop over the road' .
DIH