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Professional BoatBuilder #198 August/September 2022

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August/September 2022 — Table of Contents

On the cover: After losing part of the starboard bow halfway between Hawaii and the U.S. West Coast, the crew of the Seawind 1160 catamaran JollyDogs improvised a fix to protect their collision bulkhead by filling the bow cavity with buoyant flotsam from the Pacific garbage gyre so they could complete their sail to Port Townsend, Washington.
Photograph by Mark Hardesty.


FEATURES

Courtesy MICHAEL JOHNSON

Building a new bow. Page 18.

18   Unbowed
by Mark Hardesty
After a midocean collision, a couple made emergency repairs and sailed 1,600 miles before fixing the damage.


ALEX HEATH

Hull alignment experiment. Page 34.

34   Slightly Askew
by Christopher Murman with Alex Heath
An experimental CFD analysis of sailing catamaran hull alignment.


NIGEL CALDER

Preventing galvanic corrosion. Page 46.

46  Corrosive Behavior, Part 2
by Nigel Calder
Taking active bonding and cathodic protection measures to prevent galvanic corrosion.


L. SANDERS

Swollen overcharged cells. Page 58.

58  An Unfortunate Series of Solar Panels
by Rod Collins
Lessons from a cascade of failures in series-wired solar panels.


HENRI THIBAULT

Carlo Riva. Page 64.

64  Carlo Riva Revisited
by Gérald Guétat
Reviewing the achievements of an iconic builder of famous luxury runabouts, who would have turned 100 this year.

DEPARTMENTS

4  Letters, Etc.
A reader comments on the safety of lithium-ion batteries and how he talks with owners about them.

8  Rovings
compiled by Dieter Loibner
RaceBirds, a new one-design class of foiling electric raceboats; retirement of the Charles N Curtis, a Prohibition-era patrol boat that has served the Sea Scouts in Washington State since 1946; reducing debulk cycle frequency with Hexcel G-Vent prepregs; and a lighter, stronger folding cleat from Germany.

 

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Barry LeBlanc

Professional BoatBuilder #198 August/September 2022

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