That's helpful..actually you have to go to Media Cnetre and then to Facts & Photos, and then to either:
Executive First Service - International:
http://www.aircanada.ca/about-us/med.../exec_int.html
or
Executive Service - North America:
http://www.aircanada.ca/about-us/med...s/exec_na.html
where we learn that Int'l has a 55-60" pitch and NA has 38-40" pitch.