Originally Posted by Agaricus bisporus
"Turn right ten degrees" and "turn right ten degrees report new heading" require completely different responses so reporting the heading when not asked for it is neither correct nor required, It may be confusing as the controller will not be expecting it and may talk over it. Indeed, have heard bollockings handed out on busy London and German freqs for just that. After all, you wouldn't think of telling them the heading for "direct XXXXX" unless they ask for it. Would you???
Basic RT discipline, I'd have thought.
I completely agree, Agaricus. How many times do you hear ATC say "ABC123 turn left 10 deg", and ABC123 respond with "Turn left 10 deg and new hdg is.....um...is xxx deg". It's irrelevant, if ATC want to know your heading they'll ask you to report it. In the meantime others are trying to get a word in. If they ask you to turn left 10 deg, then turn left 10 deg and read back "turn left 10 deg, ABC123".