The official Dave's Hangar is under reconstruction. I'm going through all the models and making some adjustments, as well as testing them against a FlightGear 2.0 build. As models are redone they will be added back to the hangar. The hangar URL is: http://members.cox.net/davidculp/hangar.html . This hangar is using Dropbox for the model FTP server.
One of the updates I'm making is converting all the SGI graphics to PNG format, which takes time, so it'll be a few days before the reconstruction is complete.