🧭 Gimballed Ship Compass: Needle Damping, Hull Roll, Gimbal Levelling and Dip Error (2D)

Top view of a compass card and front view of a rolling hull with its gimbal. Set bearing, roll, pitch and damping as in the 3D compass, then add magnetic dip and wave roll to see the ringing of the needle, the heading error of an ungimballed card and the tilt the gimbal leaves behind. Four in-page numerical checks.