The Islander landed in a field where Bournemouth Hospital now is. I know the guy who took several jerry cans of avgas to refuel it for the short flight to Hurn.
The Alidair Viscount landed in a field near Ottery St Mary. No injuries but it was written off.
I had forgotten about the Metropolitan services to Alderney. We used to do compressor washes every evening on the Twin Otters after flights to The Islands.
Also remember Intra DC-3, Islander and Viscount at Hurn.
Another C.I. operator in the '70s was JF airlines of Portsmouth, with a Heron, an Islander and a Trislander.