Dark Harbor 
(Computer Model File)





Go to Dark Harbor Links

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Again, the below rendering was created from the of the orginial designs Lines drawing and Table of Offsets using the popular marine design software package - Multisurf.

dark-harbor-model-file.jpg

Static Hydrostatics

(Orginial version of Dark Harbor) 

dark-harbor-hydro.jpg

The above data is the results of my work, however I submit the following data for comparison I found at 'SailboatsData.com' comparison. 

Feel free to search for more data if you would like.  Drop me an email if you find anything.

dark-harbor-boat-data.jpg

Compare, for yourself, the 'Static Hydrostatic' calculated for Dark Harbor to the information given at SailbatData.com for:

  • Displacement
  • Design Waterline length
  • Maximum Draft
  • Length Overall
  • Displacement / Length Ratio
  • Displacement / Ballast Ratio

Go other Dark Harbor Pages

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New - Ongoing

The redesign of the classic sailboat Dark Harbor for Aluminum construction

Updated - June 22 2025

dark-harbor-model-file.jpg

Go to Dark Harbor Redesign



New to Steel and Aluminum True Round Boatbuilding

The Catspaw Dinghy

Click Here


Steel and Aluminum True Round Plans

Click Here


"Lighting Strike'

Why weight does not the sole factor in determining the speed of a Displacement hull.

Go to Lighting Strike's Velocity Predictions


How to layout and fabricate Hull Intergrals

Fabricating Hull Intergrals such as a Hatch Coaming is the next stage of boat construction.

The below pics is an initial dimensioned hand sketch - The first step in the layout process.


Click here to continue the process.


English Wheeling

This is not your Father's 'English Wheeling' method.

See how the 'True Round' shell plating is reduced to a flat patternsthat take the mystic out of the English Wheeling process.


Click Here for Details



Which type of hull is faster - A True Round design or Hard Chine design? See which via the results of 'Velocity Prediction' software.

Click Here

conversion1.jpg

The top pic is the orginal design - The bottom pic is the converted True Round version.

conversion2.jpg