i wanted to show a couple of xplane projects of mine, in case it might inspire other builders. i didnt want to post it in the general forum because im only concerned with ac3d in respect to xplane.
Caravelle cockpit:
http://www.forjets.netfirms.com/page20.html
DHC otter cockpit and interior:
http://www.forjets.netfirms.com/page2.html
i will be updating them both to obj8 format to use smoothing and animated parts. i use ac3d for the interiors only, the exteriors of all my planes are done in planemaker only.