What the heck did you do and how?
If you use the original editor the original models are not touched and remain in the original file.
Btw I can not find these models in my originals.
That's why you keep backups!
Option a)
Open the tm.log file in your documents/Aerofly RC 7 directory. See if the Aerofly writes any errors when loading the airplane and try to fix them. If you want to just post the excerpt of the log file here, maybe I can spot the error right away.
Option b) - Edit: this one does just work if you altered default aircraft
Save your changed files (make a backup of the files in some other directory), then completely remove the folders of the affected default aircraft and check game cache from within Steam. That should re-download the original aircraft. After that you can backup the original files, restore your changes one by one and find the mistake that way.
Good luck, Jan
Does "Steam" handle edited models different than ordinary RC7?
Does Steam RC7 offer different models than ordinary RC?
Regards Jürgen
Oh, I totally thought you were talking about the Aerofly FS 2 here... Well the first option is still available, so 
No Steam would not alter the contents of the user directory, but the original aircraft should then still work, right? Its just that the modification has some bug in it, that needs fixing. That can be done by looking into the tm.log usually.
Hy
I've packed your 3 Copters to a rar-file. So you can download it here:
https://drive.google.com/open?id=0BxbrK…a0o1ZVlhUk5MT2s
hope it works.
Wolfgang
any news? did you fix it?
Wolfgang
