🧭 Gimballed Ship Compass: Roll Isolation and Damped Needle (2D front view)

2D front view of a ship's gimballed compass bowl riding out waves, beside a top view of the damped magnetic needle. Set the sea state, wave period, gimbal damping, heading and magnetic bearing, and watch hull roll, bowl tilt, needle error and the roll-isolation curve. Same equations and constants as the 3D page, with four in-page numerical checks.