Aircraft always spawns with 50% fuel

[NixonRedgrave]

@longhorn1tx

Seems like it wouldn’t be too hard to set the program like it is in real life–you start where you parked it last; with the fuel you had when you parked it and if you want to change locations you can.

Vote on it: Allow aircraft to remember weight & balance - fuel, weight and passengers/cargo on next flight - #26 by NixonRedgrave