OK Knots, Listen Up:-
250kts is a speed restriction. Heard it on the R/T today. "Standard speed restriction 250 kts" Safety or not it's a restriction no less, as is a level restrriction or a heading restriction.
If the sub roster is "a perfectly legitimate roster within the normal working practice rules" well that's all right then.
I have listened to the R/T for many years and feel well placed to comment.
I may have even heard HD in the 80s, -a great honour Sir.
Taking my scanner, binos and well-thumbed Graham Duke to the top of Mt Belzoni I can often hear the transmissions from the Costa Del Swanwick. And what do I hear? Yawnsville! Contrast this with the MACC frequencies or the myriad of dancing lights often seen in the skies above our capital.
It is amazing how often the voices change. Also I note you often do 2 frequencies at a time. I suppose the theory is "We're No.28, if we do 2 freqs together we'll be No.14, -Only 9 below Manchester!
Finally, Me Me. Most people start and finish work at the appointed times.
I would like to see a flight crew sneak off before the end of their duty. Even 'Goldenballs' (Mr Beckham to you), has to stay until the end of his shift.