Current Issue

April/May 2020 — Table of Contents


Professional BoatBuilder magazine cover

On the cover: Prepreg carbon construction for the main foils of the cutting-edge Matanzas 29 powerboat: Working with a heat gun, Simon Miles warms unidirectional carbon fiber to adhere better to the glue film he previously put down on the cured substrate. Story on page 18.
Photograph by Dieter Loibner.


Dieter Loibner

Matanzas 29 foiling cat. Page 18.

18  The Efficiency Game
by Dieter Loibner
Boating experience and America’s Cup foiling technology motivate a startup builder to launch a new breed of powercat for fishing and cruising.

Kenneth Sigel

A custom Calvin Beal 38. Page 30.

30  The Star Project
by Kenneth Sigel
A lifelong sailor and a skilled Maine builder team up to develop a lobster yacht with appeal for cruising sailors transitioning to powerboating.

Nigel Calder

Alternative alternators. Page 42.

42  High Output
by Nigel Calder
Installing alternators becomes more complex and problematic as they evolve to meet the greater charge-acceptance and storage capacities of new batteries.

Marilyn DeMartini

Mock-ups with Bob Roscioli. Page 56.

56  Masters of Mock-Up
by Marilyn DeMartini
At Roscioli Donzi Yachts, full-size models of custom interiors are still
the standard tool to refine details and interior arrangements with clients.


4  Letters, Etc.
Readers comment on the dangers of reverse bows; reducing cobalt in cathodes; and fire prevention in the face of dubious regulations.

8  Rovings
compiled by Dieter Loibner
Reuel Parker’s Coastal Commuter 43; Switzerland’s Yachtwerft Portier AG; protecting Port Townsend’s working waterfront; Zin Boats; and farewell to Duncan Lethbridge.

72  Parting Shot
by Steve D’Antonio
Spurred by a client’s urging to sign a hold harmless agreement, a marine contractor and consultant researched and rejected the notion that such a document can reliably absolve a professional of responsibility for an improper installation.


66  New Products

67  Connections

69  Classified Advertising

71  Index to Advertisers