Just an idea for the sound, we could add the TAWS (Terrain Avoidance Warning System) but it is kinda annoying, and you would have to shut it off for takeoff just using like a When Not touching (runway) Wait (x) seconds for the time for the plane to get off the ground or set something like when it gets over a certain altitude prime the system then if it goes below it after the systems primed the TAWS could activate. Something like this.
Username-is-taken- made the boing 737 Use arrow keys (up and down)