[EoW_WhamO_CO]

I use neither DBW or UP but I know that all the aircraft's engine sound is encoded inside the buttons file so you Can't change the engine sounds if you don't know how to compile buttons file!in mod community it is not allowed to make your own buttons file, ( because of cheating in online game play). Guys in SAS and UP make their own buttons files and bakes it in their mods package!.

you have engine sounds confused with Flight Models.

its ''easy'' to change the engine sounds.

http://www.sas1946.com/main/index.php/board,95.0.html