Hi! After thinking of something I made this. Flying machines in Sound RTs have a sound for moving, like big wings. But, these are a machine and not dragons. Dragon is fantasy character, which have life, but machines have only engines. For this reason, I have updated a sounds for Flyingmachines in Sound RTS.
Here is the link:
https://dl.dropboxusercontent.com/u/602 … %20RTS.zip
Thanks, Marco Oros.