And my second question
is there a real difference between 'climb, turn left/right, proceed, depart (departing city/location) on/encourse' ?
[Moderator: Added from other thread]: Everytime I hear the FSS clear flights, I always hear "Depart Timmins on course" or "Depart rwy XX, turn left (or) turn right on course" Or "Depart rwy XX and proceed on course" then the squawk code is given. Is there a real vocabulary technical difference between the on course instructions? I assume the on course is the requested airway or flight planned route before or after any deviations.