The phraseology is, of course, 'continue heading' full stop, nothing else. Navigation control thus is transferred from the Pilot to the ATCO. The unnofficial phrase 'Radar heading' has crept in for emphasis because some pilots instructed to 'continue heading' have failed to do so, the aircraft has unexpectedly turned at the next waypoint (for whatever reason) and radar separation has been compromised. This may be due to mis-management of the autopilot, a lack of understanding of why ATC requires the heading to be continued, or simple forgetfulness. It is a pity that such emphasis of such an effective, simple phrase becomes necessary.
Last edited by Talkdownman; 2nd Aug 2005 at 04:45.