Fighter Jet HUD Velocity Indicator

Hi, I’m relatively new to unity3d, and I’m close to finishing one of my first full projects, a fighter jet game, but I’m struggling with this one part.

In a fighter jet, the HUD has a velocity Indicator which displays the position that the aircraft would go into if there were no more forces (no more thrust) or control surface changes, and I cant find a solution to this problem anywhere online that still works.

Any help would be greatly appreciated.