1. What column represents nÂș of bail outs?
There is no column (yet) for bail outs.
2. Abandons = disconects and aircraft switches?
Abandons = leave the plane before landing. If you switch to another plane in flight, that will count as an abandon.
3. Whats difference between deaths "caracter" and "plane"?
Character is your virtual persona and the plane is the plane

For example:
If you get killed (as in pilot) on the ground, you have 1 Character death but no plane death.
If you bail out and your plane dies but you survive, you have a plane death but no character death (which is how you can calculate more or less #1)
Hope this explains.
PS: These stats are only version 1 done over a week I was on vacations. At this time, I'm working on another project, but once I'm done I hope to start working on a much improved version. So sorry, no patch for now