There appears to be a difference between SD (or perhaps British?) and American /International /ICAO terminology. Apparently:
SD "track" = ICAO "course"
SD "course" = ICAO "heading"
I can understand that with UK roots and a large UK user base, SD had chosen to adopt UK terminology.
However it can be confusing for those having been trained, and used to flying, elsewhere.
I doubt there is any answer to this.
Comments, anyone?
Volare...oh oh...cantare...oh oh oh oh