Issue No. 138, August/September 2012 — Table of Contents
On the cover: This shaft anode exhibits an unusual corrosion pattern that isn’t necessarily symptomatic of a faulty installation. Any anodes that aren’t being consumed in a reasonable period of time indicate trouble in the bonding system: either a poor connection between an anode and the object it’s supposed to protect, or a coating that forms and interferes with the intended sacrificial corrosion of zinc anodes employed in fresh water. Story on page 18.
Photograph by Steve D’Antonio.
18 Best Practices
by Steve D’Antonio
How to design, install, and troubleshoot a bonding system that provides optimum corrosion protection for a boat’s underwater metal fittings.
32 The Deep-V Refined
by Robert Mazza
Mark Ellis’s powerboat designs owe much of their success to his early experience in the Hunt design office, his affinity for classic aesthetics and sailboats, and his good business sense.
48 Special Project
by Paul Lazarus
The Tripp-designed cruiser/racer Katrinka was methodically gutted, out to the original skins of her 40-year-old molded fiberglass parts. And then brought all the way back, to better than new. Katrinka is a case study in how to sensibly, and sensitively, upgrade a modern classic—with marine composites.
64 Splash Protection in Practice
by Benjamin Ford
The U.S. Vessel Hull Design Protection Act is 13 years old. How is it working for boatbuilders?
Readers comment on untinned wire and welding cable in onboard electrical applications; and concerns about repowering with electric propulsion units.
compiled by Dan Spurr
New core materials from DIAB; reusing derelict boats; the largest outboard motor; the EEL shore-power cord; High-Speed Boat Operations Forum; C&C reunion; Gunboat in North Carolina; and hybrid propulsion from Northern Lights.
80 Parting Shot
by John Brooks
An experienced boat and paper-airplane designer and builder reflects on the value of simplifying construction ideas and details before they get to the shop floor.
READER SERVICES74 Services
76 New Products and Processes
77 Classified Advertising
79 Index to Advertisers