Professional BoatBuilder #156 August/September 2015

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Professional BoatBuilder Magazine

August/September 2015

On the cover: A Mars Metal technician checks the interface between the keel and lead bulb as they're readied for shipment to Southern Wind Shipyard in South Africa. The Canadian company has evolved from a small local lead foundry in 1979 into a global supplier of custom finished keels and ballast bulbs in lead, iron, steel, and nickel-aluminum-bronze. Story on page 70.



  • 24 Hooked on Networks: by Nigel Calder.  While slow to catch on at first, NMEA 2000's proprietary protocols have expanded functionality and popularity of networked onboard electronics.
  • 40 Flight Engineering by Doug Schickler.  A design team exceeds conventional expectations and structural standards for cruising boats in creating Gunboat's new G4 foiling catamaran.
  • 54 Back from Abandoned by Reuel B. Parker.  Rebuilding the title and restoring a derelict, hurricane-damaged Chris-Craft Commander 27 are worth the grime and the grunt work.
  • 70 The Keel Specialists by Rob Mazza.  The Canadian Mars Metal Company, a major producer of lead keels for sailboats, has expanded into other markets, including radiation shields and counterweights.

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