April/May 2019 — Table of Contents
On the cover: A high-speed impact with a Caribbean shoal left the composite hull of a newly launched 74′ (22.5m) Spencer sportfisherman badly damaged in early 2016. Worton Creek Marina (Chestertown, Maryland) has resurrected the boat, replacing extensive sections of splintered wooden stringers and damaged foam-core composite hull skins as well as all onboard systems and mechanical components harmed by the impact and subsequent partial sinking. Story on page 28.
Photograph courtesy Worton Creek Marina.
20 Record Chasers
by Dieter Loibner
Three pending powerboat record attempts look to new hullforms, advanced materials, and cutting-edge fuel and propulsion technologies to gain an edge.
28 Patch and Release
by Aaron Porter
Refit specialist Worton Creek Marina restores on spec a 74′ sportfisherman that suffered severe damage from a grounding on her maiden voyage.
46 Tough Sledding
by Dan Spurr
Inventor/engineer/designer Jim Kyle wants to create the perfect small-boat hullform based on the Hickman Sea Sled.
62 CAN Bus at Sea, Part 2
by Richard T. McLaughlin and Chris Quigley
Troubleshooting onboard networked systems by analyzing data link and application layers, and running error injection tests.
4 Letters, Etc.
Readers comment on intricacies of diesel engine emissions standards; and credit due Ted O. Jones for Slo-mo-shun IV and V.
compiled by Dan Spurr
Thee Dunkirk survivor Ona II; Westlawn students report in; a history of Boston Whaler; and the passing of Carl Moesly.
76 Parting Shot
by Steve D’Antonio
Avoiding some common misconceptions about colors and the chemistries of two-part topside paints.
70 New Products and Processes
73 Classified Advertising