This mod adds 7 markers from Kerbal Space Program to help you visualize your ship trajectory
Features
Prograde : Will point in the direction in which your ship is heading
Retrograde : Will point in the direction opposite to which your ship is heading
Radial-In : Perpendicular to the Prograde, will point toward the selected target
Radial-Out : Perpendicular to the Prograde, will point away from the selected target
Normal : Parallel to the selected target, it points to the right of the target
Anti-Normal : Parallel to the selected target, it points to it's the left of the target
Maneuver : Adjustable marker, will point in a direction selected by the player
Artificial Horizon : Two lines parallel to the target, symbolize the ship's rotation relative to the ground