What is best trim for ship By head or by stern?

The best trim for a ship is typically by the stern, as it allows for better hydrodynamic performance and reduces drag through the water. A stern trim can help improve speed and fuel efficiency, while also enhancing stability and maneuverability. However, the optimal trim can vary based on the vessel's design, loading conditions, and operational requirements. Proper trim management is crucial for overall safety and performance at sea.