How amazing. Do you think they made a mistake by not calling it a Brevet? (A joke !!)
Thank you so much for this. I doubt the people on the Sentinel aeroplane ever conformed to
that which was requested to H.M. ie the the radio in the Vulcan or instructing the Siggies in Coastal.
But it doesn't really matter. Every body has a common i/d and likewise a common enemy.
David M
5aday