Professional BoatBuilder #178 April/May 2019

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Format: Digital
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Professional BoatBuilder Magazine

April/May 2019

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.


  • Robotopia: by Dieter Loibner.  Ophardt Maritim, a German builder of aluminum boats, bets on robotic welding for improved quality and production efficiency.
  • 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.
  • 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.
  • Tough Sledding: by Dan Spurr.  Inventor/engineer/designer Jim Kyle wants to create the perfect small-boat hullform based on the Hickman Sea Sled.
  • 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.
  • Letters, Etc...: Readers comment on intricacies of diesel engine emissions standards; and credit due Ted O. Jones for Slo-mo-shun IV and V.
  • Rovings : compiled by Dan Spurr.  Thee Dunkirk survivor Ona II; Westlawn students report in; a history of Boston Whaler; and the passing of Carl Moesly.
  • Parting Shot: by Steve D'Antonio.  Avoiding some common misconceptions about colors and the chemistries of two-part topside paints.
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  • Customer Reviews

    Based on 1 review
    Ross Kile
    Sea Sleds

    Just as I wanted, fully satisfied, thank you

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