Abstract: A method for increasing cargo capacity of a floating vessel with a buoyant hull for cargo, with a load line presentation device affixed to the buoyant hull without interrupting water flow along the buoyant hull the load line presentation device presenting: a baseline load line indicator plimsoll mark and a plurality of increased capacity load line indicator plimsoll marks, with an increased capacity model in memory connected to a processor in communication with the load line presentation device; the increased capacity model configured for automatically integrating a plurality of variables including: wave size, wave period, wind speed, surface current, vessel length, type of vessel, quantity of disconnected superstructures, quantity of sheer, and bow height and identifying increased capacity load line plimsoll mark for a voyage of the floating vessel, the load line presentation device displays the increased capacity load plimsoll mark improving baseline capacity of the buoyant hull from 1% to 30%.

Abstract: Floating vessel with a buoyant hull for cargo, with a load line presentation device affixed to the buoyant hull without interrupting water flow along the buoyant hull the load line presentation device presenting: a baseline load line indicator plimsoll mark and a plurality of decreased capacity load line indicator plimsoll marks, with a decreased capacity model in memory connected to a processor in communication with the load line presentation device; configured for automatically integrating a plurality of variables including: wave size, wave period, wind speed, surface current, vessel length, type of vessel, quantity of disconnected superstructures, quantity of sheer, bow height, a port specific draft restriction, a canal specific draft restriction, and identifying decreased capacity load line plimsoll mark for a voyage of the floating vessel, the decreased capacity load plimsoll mark restricting baseline capacity of the buoyant hull from 1% to 50%.