Thanks Capt H Peacock,
Although as several posters over on the aircrew side pointed out, what is a radar heading ? No such animal

What we actually want is the aircraft to follow a track over the radar. On a constant heading that track will of course change with speed, height, and wind, as the aircraft progresses.
Now of course with FMS aircraft we can assign an offset or tell it to follow the centreline and it will flawlessly do so (subject to finger trouble of course !!). Maybe we need "fly FMS heading"
But back to the RT
ATC: ABC123 continue present heading.
Pilot: ABC continuing present heading 150
How about that as a compromise ? (only one more word in the dialogue compared to yours and that's by ATC

)
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10 West
UK ATC'er
[email protected] ICQ 18043595