Tools
Interactive calculators built on first-principles naval architecture and marine engineering. The equations are exposed and arguable rather than hidden behind rules of thumb, and each tool states plainly what it assumes and what it ignores.
Ship stopping distance
How long does it take a ship to stop? Works through the hydrodynamics of hull resistance and propulsion type from first principles.
Wing foil sizing
A wing-foil gear calculator spanning float, wing-in-air, and foil-in-water regimes, joined into one coherent physical model.
Ship stability (heel & roll)
Tier-1 GM, GZ, and roll-period estimates, with a free-surface-correction demo.
Ship turning (yaw)
Nomoto first-order turning model — advance, transfer, and tactical diameter.
Velocity prediction (VPP)
Sailing yacht performance prediction, ported from a validated Python reference.
Coming soon