Thought of a few that would be cool to implement....
* Whoosh of air as you bail out and free fall to earth
* Sound of ripcord and parachute being deployed
* Thunderous crunch/splat/"Ooooof" sound of not opening up the chute in time

* Thud of landing successfully in chute
* Background sounds on CV, saw a few WW2 clips on the Wings channel other night, things like "Clear the flight deck" or associated gargle
* Yelling "Clear the Prop" as the engines fire up...perhaps canopy closing sounds, etc....
Anyways, just some ideas....slow day here at work and was ICQing with a friend some things we thought would be cool to add.