Blue - Lift from wings
Cyan = Lift from Air intake/engine?
Red - Drag
Yellow - Thrust/Control surface lift. 0 underwater
Pink - ?? outside the part, Tracks Yellow
Green - ?? Inside the part. One for each propeller, increases with motor speed. 0 RPM dances around randomly. Flips direction with "Rotation Direction" or "Invert Direction", (Those two things appear to do the same thing, are they different?) right hand rule? Angular Velocity?
Other askers, that didn't get definitive answers: https://steamcommunity.com/app/220200/discussions/0/3140616601468124007/ https://www.reddit.com/r/KerbalSpaceProgram/comments/fusq3o/can_anyone_on_this_earth_please_explain_the/
