Question about Air Canada Jazz Canadair CRJ700s?

[Delta777LR]

When ever i see an Air Canada Jazz canadair CRJ700 coming into La Guardia Airport, I think of it as a Canadair CRJ900 because it is longer than the CRJ700 why is it that Air Canadair Jazz's CRJs is the 700 instead of 900??
http://i116.photobucket.com/albums/o37/sergair/000_2493.jpg
Air Canada Jazz CRJ700 above
http://i116.photobucket.com/albums/o37/sergair/000_3448.jpg
United Express CRJ700 above
http://i116.photobucket.com/albums/o37/sergair/000_2815-1.jpg
and America West/USAirways CRJ900

[cancidas]

jazz flies the CRJ-705. it's a little longer and different windowws. they're a little higher up the body and i believe a little larger. the CRJ-700 was built off the -200 fuselage and kept the original windows, and for soemone as tall as me they're a pain in the neck!

[tipek]

Bombardier CRJ-705 which Jazz is using is nothing else than regular CRJ-900. AC had problems with pilot union about flying 90 people versus 70.
So AC ordered CRJ-900s from Bombardier with only 75 seats so they could be flown by Jazz crew and not going into mainline.

Rafal

[uplander]

I think they only delivered 15 of the 705's, exclusively for Jazz, but they also fly a bunch of the smaller CRJ's too, in red, green, and orange. Like this one: http://www.jetphotos.net/viewphoto.php? ... 632&nseq=2 (http://www.jetphotos.net/viewphoto.php?id=5889632&nseq=2)