Superyacht Design / Naval Architecture
Naval Architecture
Hydrostatic behaviour, intact stability and trim, including buoyancy, centres of gravity and flotation, loading effects and the yacht's equilibrium across operating conditions.
Hydrostatic behaviour, intact stability and trim, including buoyancy, centres of gravity and flotation, loading effects and the yacht's equilibrium across operating conditions.
Guide
The approved stability book translates naval-architecture analysis into usable operating information. It defines loading conditions, hydrostatic limits, tank assumptions and restrictions that help the crew keep the yacht within its approved stability envelope.
Aug. 10, 2026
Guide
Liquid moving across the free surface of a partly filled tank creates an apparent loss of stability. The effect can be significant on yachts with broad slack tanks and must be included in approved stability assessment and tank management.
Aug. 10, 2026
Guide
Trim describes the difference between forward and aft draft. It changes when longitudinal weight and buoyancy no longer balance at the existing waterline, making LCG, LCB and LCF essential hydrostatic concepts.
Aug. 10, 2026
Guide
Intact stability is the ability of an undamaged yacht to resist and recover from heeling influences within its approved operating conditions. Understanding GM, righting arms, GZ curves and downflooding is central to safe naval architecture.
Aug. 10, 2026
Guide
Buoyancy explains why a yacht floats, while the relative positions of buoyancy, gravity and the metacentre help describe its initial response to heel. These concepts are fundamental to stability analysis.
Aug. 10, 2026