TRC,
Great description: you didn't happen to be there when the 206 parted company with its rotor assembly?
Re the police radio, my Dad was I/C the helicopter trials for the Met using a couple of AAC Sioux/B47s in 1965: one memory was the (valve?) driven monstrosity sitting on the skids. That and TOM refusing to let me go for a flight when invited as it may be seen as bad for his image as Inspector