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Professional BoatBuilder #194 December/January 2021/2022

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December/January 2021/2022 — Table of Contents

On the cover: Gizmo, the custom electric-powered foiler assembled by veteran Washington-state boatbuilder Chris Maas from discarded components and repurposed technologies, is capable of two hours runtime at a 12-knot cruising speed. Story on page 30. Photograph by Dieter Loibner.


FEATURES

STEVE KILLING

Performance modeling with CFD. Page 18.

18  CFD in the Small Design Office
by Steve Killing
The expense and training that computational fluid dynamics software requires are now justifiable even for a one-man design office.


DIETER LOIBNER

A custom electric outboard. Page 30.

30  Frankenfoiler
by Dieter Loibner
Scavenging parts and gear, a boatbuilder in the San Juan Islands creates a fully foiling catamaran with electric propulsion for his private milk run.


STEVE D’ANTONIO

Pressure-testing fuel tanks. Page 44.

44  Diesel Tanks Done Right, Part 2
by Steve D’Antonio
Securing, supporting, gasketing, grounding, and pressure-testing onboard fuel tanks.


DAN NERNEY

Canadian yacht designer. Page 60.

60  Eight Bells for Bruce Kirby
by Rob Mazza
A tribute to the Canadian yacht designer, Olympic sailor, and journalist who saw hundreds of thousands of boats built to his specifications.


DEPARTMENTS

4  Letters, Etc.
Readers comment on industry training in the Pacific Northwest; wiring a switch between shore power and generator power; and a case for RCD devices with programmable trip levels.

8 Rovings
compiled by Dieter Loibner
An on-the-water report of the fleet of high-speed commercial and military-grade small craft at HSBO 2021; farewell to foam-core pioneer Tom Johannsen; the definitive Walt Walters book; Ghost Mount; and a new pilothouse cruising sloop from Heyman Yachts.

54 Task Sheet: Metering and Mixing Epoxy
by Russell Brown
An experienced composites technician and perfectionist shares the mixing protocols that will get the best from your epoxy.

72  Parting Shot
by Mike Telleria
The engineering manager for a thriving trawler company looks back on the pandemic and draws some lessons about tolerance, identity, and teamwork from his experience.

 

 

 

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Paul Joske
very informative, part of an ongoing education in products, ideas and applications in boatbuilding

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