Tools and writing for owners and buyers — practical, no-nonsense, and grounded in over 45 years on the water. Use them to plan, to screen, and to ask better questions before money changes hands.
Three tools, used in order: predict a hull's top speed from power and weight with Crouch's formula, work back to the propeller pitch that gets you there, then log a sea trial and let the slip trend read itself. Engineering estimates to plan and screen — not a substitute for a trial on the water.
Open the calculators →Field notes on buying, selling, surveying and running boats — the sea-trial problem, the used-market, the right way to buy or sell, and the Trials Deck series on the discipline of verifying what's real.
Read the articles →Client case studies and project use cases — acquisitions, forensic investigations, refits and deliveries — are in development and will be added here.
Tell us about the vessel, the project, or the decision in front of you, and we'll tell you straight what it actually requires.