Fix use of JSBSim expression element in SimGear expression :roll:
More current draw on spinup
Added turn coordinator
First part of MP sync
Bergfalke: Small cleanup and update
B-52F: Autopilot cleanup, previews, states, latest yasim version.
SG38: Updated and (way) more detailed model (WIP)
Cessna 208B: Improve G1000 EIS Display
Cessna 208B: Introduce FG1000 panel, various improvements
