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Professional BoatBuilder #201 February/March 2023

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February/March 2023 — Table of Contents

On the cover: An Ian Farrier–designed F-33R trimaran represents one of the best-engineered and -built folding multihulls. While it takes some time to set up for sailing after launching at a boat ramp, it is an able and fast cruising platform that can also be legally trailered behind a midsize truck and stored in the backyard.
Photograph by Aaron Porter.


FEATURES

AARON PORTER

Folding multihulls. Page 18.

18  Know When (and How) to Fold ’Em
by John Marples
A designer’s look at folding amas and other beam-reduction strategies for multihulls.


NIGEL CALDER

Wiring isolated DC systems. Page 30.

30  Practical Electrical Isolationism
by Nigel Calder
Navigating the evolving standards for ungrounded DC systems.


COURTESY FRED LILLIAN

Galley design specialist. Page 42.

42  Down in the Galley
by Paul Molyneaux
Often treated as an afterthought, custom design of a professional galley is essential to a functional boat.


CHARLES PALAME

The case for adjustable deadrise. Page 58.

58  In Pursuit of Adjustable Deadrise, Part 1
by Charles Palame
The promise and challenges of creating operator-selected deadrise in a high-speed RIB.



DEPARTMENTS

4  Letters, Etc.
Readers comment on proper use of jackstands; hand sketching as a communications tool; additional grounding systems best practices; carpetbaggers in the marine trades; and confirmation that Steve Baker is still with us.

8  Rovings
compiled by Dieter Loibner
A custom carbon shop builds spars and foil supports for boardsports and high-performance sailing; Principles of Yacht Design, 5th Edition; dual-fuel marine engines; eight bells Eddie Lane; and a wireless vacuum-monitoring option.

50  Task Sheet: Repairing a Cored Carbon Hull
by Brandon Davis
A marine composites expert shares his techniques and processes for repairing a damaged carbon fiber hull and deck.

76  Parting Shot
by Andre Cocquyt
The benefits to host communities of big boat projects for superwealthy owners sometimes come at the expense of local infrastructure and pride—probably a price worth paying.

READER SERVICES

56  New Products and Processes

71  Connections

72  Classified Advertising

75  Index to Advertisers


 

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