BCAL/Dan-Air 1-11 beep on R/T
Does anyone old enough to remember Caledonian 1-11s - some of which then went on to fly for Dan Air - have any idea why their transmissions used to end with a very distinctive 'beep' at the end?
I haven't exactly been worrying about this for 20 years but I smiled while reading a book last night by a guy growing up through the Airfix kit > plane spotter > cars/bikes/girls route mentioned BCAL 1-11s distinctive R/T beeps as heard on his airband radio.