"JJ Sinclair" wrote in message
...
Al wrote..
er on the ground waiting to launch 
One must be in motion to have a track.
JJ Sinclair
Well, just for fun I'll split a hair. According to the listed sources,
"Track" is defined as the "...intended or desired horizontal direction of
travel..." The term "course over ground" refers to the "..actual path of a
vessel with respect to the earth..."
American Practical Navigation, Bowditch, 1977
Dutton's Navigation & Piloting, Maloney, 1978
Clearly my sources are founded in nautical navigation, and so where did you
locate the aviation definition?
Ivan