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Cal's Evals
ECO 7.5m Coastal Cruising Catamaran

The ECO 7.5 is one of a family of novel multihulls designed by Berndt Kohler. The following figures show this boat in comparison with the average values of 17 other catamarans with waterline length between 22.5 and 25 feet, listed on the Multihull Dynamics, Inc. website.

Comparative Trend-Line Analysis
TELSTAR 8M Custom Multihull Eval

This is Multihull Dynamics, Inc.s (MDI) Custom Multihull Review of the Telstar 8M. It features a comparison of the 8M with Trend-Line results of 129 trimarans in the MDI Database. In addition Cal Markwood, Engineering Analyst for MDI, has written a "Cal's Eval" for the Telstar 8M which narrows the comparisons further by evaluating this boatwith other boats intheMDI database that have similar specifications.


Featured Catamaran
ANTARES 42 AND 44i Trend-Line Analysis

This is MDI's Comparative Trend-Line Analysis of the ANTARES 42 & ANTARES 44i.  In theTrend-Line Analysis the of the 42 & 44, both are compared to each other and graphed against the Catamaran Database Trend-Lines of Performance and Stability results of the 881 catamarans in our database.  The specific Catamaran Database Trend Lines used for the Trend-Line Analysis are: Bruce Number (BN), Sail Area to Displacement ratio (SA/D), Base Speed (BSpd), Texel Rating (TR), Stability Speed (SSpd) and Kelsall Stability Index (KSI).

Featured Trimaran
CORINTHIAN 41 TRIMARAN

This is MDI's Comparative Trend-Line Analysis of the CORINTHIAN 41 trimaran. The CORINTHIAN 41 is compared to, and graphed against, theTrimaran Database Trend-Lines of Performance and Stability for the results of the 135 trimarans in our database. The specific Trimaran Database Trend Lines used for the Trend-Line Analysis are: Bruce Number (BN), Sail Area to Displacement ratio (SA/D), Base Speed (BSpd), Texel Rating (TR) and Stability Speed (SSpd).

Sailing
PASSAGE STRATEGY - By Dave Abbott

I asked Dave Abbott how he planned long range passages - here is his answer:

Many people don't have a clear idea in their mind about how they are going to make a passage - they lack a strategy - and that contributes to a sense of anxiety when they sail offshore.

Technical
Abbreviations, Definitions, Formulas and Terms
MDI's "First Order" evaluation of Multihulls an explanation from the basics to performance and stability.

             

 

         

 

 

        

Opinion + $5 =  $90

 

 

 

 

 

Over 1000 Multihulls

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