If You are seaching new models for Your RC simulator Reflex XTR (next to reality) and for FREE, You may want to visit RC-SIM.de The list of free download is increasing and You may find there what You are searching for. (and also for Aerofly Pro, Realflight G2/G3). Currently, there is:

• 140 helicopters: electrical, glow powered, replica ...
• 49 scenary: outdoor, indoor...
• 209 airplanes for all of You which also fly airplanes ;-)
• 69 recordings/videos to improve your flying skills...
• ...

All of them can be download for free... Enjoy