TECHNICAL ARTICLES

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Design Basics    Definitions of various evaluation factors and ratios used by yacht designers.
Fuzzy Logic   Details on the use of Fuzzy Logic to sort cruising boats from a data base.
Estimating Stability   Several practical methods for estimating your boats stability.
Dynamic Stability   Discussion of how the moment of inertia effects  boat response to large waves.
Water Ballast   Static Stability comparisons:  Lead Vs Water, similar designs.
Best Offshore Cruisers   Fuzzy logic sort from data base for "best" cruisers, as defined by the work of noted designers.
Rigid Wing Sails   Analysis, design, fabrication, and testing of semi rigid sail on a windsurfer.
Anchor Catenary Details    A model of the rode shapes (catenary) associated with various anchor systems including      kellets.
Canoe Design   Effects of rocker, and other factors, on canoe response.  Three designs are analyzed.
Radar Arch Design   Discussion and pictures of a  Radar Arch with dingy davits and two position sunshade.
Dinghies for Self Rescue An Abandon Ship procedure is outlined, using a dinghy along with an inflatable life raft.
GPS Limatations Low speed velocity calculations by GPS are suspect due to Selective Availability errors.
Cruising Boats Under 100k A list of boats costing less than 100k and making my "Best Offshore Cruisers" list
 Rigid Wing Sails, II  An 85 sq.ft. wing sail is tested on a 14' Wave Piercing Catamaran
Capsize Velocity and Multihull Stability  Capsize Velocity is calculated for various multihulls. A process is presented for reducing the probability of capsize. 
   

 

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