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

Since the Plans that I am working from dioes not include Engineering Data, since they are building only building plans. 

However at this  stage of the Re-Design I submit the following data for comparison I found at 'SailboatsData.com' to the My calculated Static Hydrostatics above that was obtain from the  computer Model File I created for the purpose of this Blog. 

Feel free to search for more 'On Line' data if you would like to.  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



Steel and Aluminum True Round Plans

Click Here for Plans


Demystifying the weight factor

By way of a VPP Race between two versions of 'Lighting Strike' (One steel and the other Aluminum)

The weight factor Demystifed

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 platting is reduced to a flat pattern. These Flat Patterns take the mystic out of English Wheeling.


Click Here for Details



Converting an existing Hard Chine Design to a True Round Design

Followed by a Race via a 'Velocity Prediction Program.

Click Here

conversion1.jpg

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

conversion2.jpg