here they are they need to be converted to wave sound. just use audacity or something have air com recordings for extra!!!!!
helicopter sounds:
HelicopterVehicle.zip
jet and air com sound:
JetVehicle.zip
there called Helicopter Vehicle and jet vehicle because its from my Garrys mod game i am using all the sound files from there cuz there pretty nice and easy to find
note: air com sound don't need to be converted there already wave sound
also note:the files are named weird you have to listen to them to find the one you want :/
Happy flying!