Page 69: of Marine News Magazine (November 2015)

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WORKBOAT DESIGN “… it goes far beyond ensuring that products simply meet Class, Flag or International

Treaty requirements. For example, a door or window to be ? tted at main deck level will face different requirements than one installed in a wheelhouse two decks up.” – Ron Dykes, commercial and government/military general sales manager at Freeman Marine

The most tempting response might be to simply install “It sounds obvious to say it, but any closure, whether it is the highest grade of closures throughout. While that may a window, door or a hatch, has to be of equivalent strength satisfy minimum performance requirements throughout to the deck or bulkhead to which it is installed,” says the vessel, budgetary considerations typically rule out such Mund. “And yet, surprisingly, the shipyard may not always an approach. Attaining that optimal balance of perfor- provide that information. Just specifying that the design mance and cost-ef? ciency requires carefully determining calls for 30-by-30 window doesn’t really cut it.” exactly what is required of each individual closure, and se- Marine Classi? cation Societies, Flag States or Internation- lecting accordingly. al Treaties will always impact the choice of critical closures,

In selecting and specifying marine closures like windows, ? ttings and openings. A wide range of regulatory compliance doors and hatches, the three key criteria are performance, factors and type approval factors come into play when speci- features, aesthetics, says Andrew Mund, technical director fying closures for work boat applications. These may include: for AdvanTec Global Innovations, a supplier of closures ADA IACS Rules SOLAS to commercial, military and recreational yachting markets. IMO MCA (or ? ag state) Nav Sea www.marinelink.com MN 69

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