YachtSoft is a marine design suite for Rhino 8.27+. It has:
hull fairing (plaining & displacement, Mono & multihull) multiple standard vessel types
hydrostatics (Datum analysis, Sectional Area Curves, performance ratios, live equilibrium floatation, heel, RM curves)
weights & centres, by category, calculated, imported from spreadsheets
structural analysis (frames, bulkheads, floors sole, shell) in FRP and metal
material optimisation (plating panels nested, mould & plug structure)
engineering (tankage, shafts, ISO12215, rudders, props, engine beds)
live centre of gravity calculations, graphs, performance ratios,
Asset Library (deck equipment, systems, engines, outfit
Materials Library (densities, properties, Sail cloth, FRP area densities, laminate design, all ISO12215 compliant)
Build tools (full bill of materials, full-size templates, plug & mould design, costings, quotes)
Section Library (spars, booms, foils, spreaders, stringer extrusions etc)
planing performance (Savitsky, steps, rails)
sailing performance (RM, sails, spars & rigging, keel, bulb and rudders)
Coming in 2026/7 is:
full ISO12215 compliance of structure
new hull types (long keel, canoe stern, trimaran, proa, cathedral hull, SWARF
new materials (wood, HDPE)
styling (working decks cockpits, deck-structures, pilot houses, glazing, doors & windows, stairs, teak decking etc)
It is distributed via Package Manager and Food4Rhino.
Version 1.1 was released in November 2025
Version 1.2 was released in May 2026 with the DKUI interface
Version 1.3 was released in August 2026 with the new MolaUI interface.
Current version (as of 14/08/2026) is Version 1.31
X: Phil Southwell (@Phil_yachtsoft) / X
Web: https://yachtsoft.app
LinkedIn: https://www.linkedin.com/in/yachtsoft/
Gallery of screenshots: YachtSoft Screenshots
Purchase page: YachtSoft Products - Shop
Features page: Included Features - YachtSoft