Hull Shape and Performance - for sailboat cruisers

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Safety Recommendations for Cruising Sailboats

[Vendor] Safety Recommendations for Cruising Sailboats - add to MyResources
Membership organization Safety Recommendations for Cruising Sailboats

Compiled by the governing body of U.S. ocean racing and sailing, this book belongs aboard every offshore cruising boat and its recommendations in the head of every serious cruiser.

[US Sailing, Portsmouth, RI, USA]
- Buy the Safety Recommendations book

Choosing an Offshore Sailboat

[Site] Choosing an Offshore Sailboat - add to MyResources
By Sam L.Morse Co.

One builder of full-keel designs talks about the virtues of the traditional design and construction features of these boats. Whether you agree with everything or not, this gives good coverage of a lot of issues.

[Sam L. Morse Company, Costa Mesa, CA, USA]
- Offshore cruising boat criteria

Design Basics

[Site] Design Basics - add to MyResources
By John Holtrop

Explanation of key ratios and factors used to predict hull characteristics and performance, illustrating each with his plots of the values for over 700 boats.

[John Holtrop, Ridgecrest, CA, USA]
- Hull performance calculations

STIX

[Offline] STIX - add to MyResources
Detailed How-To By Rolf Eliasson

Cruising designs vary in their ability to recover from a capsize. Details of the European Union′s Stability Index, which measures the dynamic (not just static) stability of a ballasted sailing monohull, are explained. 10 pages with diagrams.

[Professional BoatBuilder, February 2003]
- Order Issue 81 of Professional BoatBuilder

Choosing a Cruising Boat

[Article] Choosing a Cruising Boat - add to MyResources
Overview By Sue & Larry
Choosing a Cruising Boat

Some features of a boat are attractive for one type of cruising but limiting or even dangerous for others: interior arrangements, cockpits, sail plans, and hull shapes are discussed briefly.

[SailNet, 14 April 2003]
- The online article on cruising boat selection

Baltic Yachts Ltd. - Design philosophy

[Vendor] Baltic Yachts Ltd. - Design philosophy - add to MyResources
Boatbuilder

An interesting 18-page discussion of the design choices this builder has made in displacement, fiberglass laminates and resins, and certain details of their boats.

[Baltic Yachts Ltd., Bosund, Pietarsaari, Finland]
- The Baltic 50
- Baltic's design philosophy

Performance Calculators

[Site] Performance Calculators - add to MyResources
Membership organization Performance Calculators

Plug in your boat′s dimensions and these pages will calculate maximum hull speed, capsize resistance, angle of vanishing stability, sail area to displacement ratio, displacement to length ratio, and motion comfort ratio.

[US Sailing, Portsmouth, RI, USA]
- Calculate your Hull Speed
- Calculate your Capsize Screening Formula
- Calculate your Stability Angle
- Calculate your SA/D ratioi
- Calculate your D/L ratio
- Calculate your Motion Comfort Ratio

Sailboat Design Ratios

[Site] Sailboat Design Ratios - add to MyResources
Personal website By Dan Pfeiffer

Probably the most complete list of sailboat measurement ratios, with methods of easement, and explanations of the significance of each. Includes sources and references, with some HP-41 calculator programs to calculate some of the ratios.

[Pyxis, Pearson 26, USA]
- The performance ratios

The New U.L.D.B. Sailboats

[Site] The New U.L.D.B. Sailboats - add to MyResources
Yacht Designer

Ultra Light Displacement Boats can weigh half what a conventional displacement hull does, exhibit twice the cruising speed , are easier to handle and less expensive for their size. The author talks about the downside to all this and his ideas for curing them.

[Bray Yacht Design and Research Ltd., White Rock, BC, Canada]
- Read the article on line

BoatDesign.Net sailboat forums

[Site] BoatDesign.Net sailboat forums - add to MyResources
Private site

One of the best resources on the web for familiarizing yourself with sailboat designs, getting answers to design questions, and looking over lots of professional and amateur designs. Forums include designs, design software, education, services, and several others on the building process.

[Boat Design Net, Beaver Island, MI, USA]
- The sailboat design forums

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Related Topic Keels and Centerboards


When talking about cruising boats, what do we really mean by performance? Straight-line speed? Tacking angles? Fuel and freshwater capacity? Heavy weather ability?

George Day


Please help me improve CR.
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The right resources for you
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Thanks.