Professional Marine SurveysDavid PascoeMarine Surveyor(Retired)
Browse ArticlesHull Design Defects Part IThis series of articles is written exclusively for marine surveyors to help identify the wide range of structural defects that can be found in boats and yachts. Because there is such a diversity in types of hulls, design styles and an ever-expanding array of new construction materials, it is difficult for surveyors to keep up to date on cause-and-effect evaluations. (text 39k + 7 photos, Hull Design Series: First article) Hull Design Defects Part IIAnyone who has ever seen airframe construction, particularly jet aircraft, understands why aircraft can be built with skins that are extremely thin. And while an aircraft isn't subjected to the same type of forces as a boat hull, the fuselage is the hull and must be strong in different ways. Rather than being framed, one could correctly say that an airframe is corrugated, for that's exactly what it is. The skin can be extremely thin because the frames are so close together...(text 49k + 9 photos, Hull Design Series: Second article)
Surveying Boats With Molded Integral Grid SystemsFiberglass boats built with internal liners
have been around for a long time. Typically, a liner is a
premolded internal component, the purpose of which is to provide
the basis for the interior layout. Over time, this function
has evolved and has slowly taken over the function of providing
internal hull structural support as well. Surveying Wood HullsThis essay proposes to fill the alleged gap
by offering a general discussion of how to approach the survey
of a wood hulled vessel. Avoiding the Blister BluesGood Detection and Communication Techniques
Hull blistering is a problem that has been with
us for a quarter-century. One might think that over a period
of twenty-five years this problem would have long since been
solved, and no longer be much of a problem for surveyors.
Unfortunately, our research reveals that the blistering of
boat bottoms continues to be a growing source of complaints
and lawsuits against surveyors. It seems to be one of those
pernicious problems that just won't go away. In fact, the
number of lawsuits against surveyors has actually increased
dramatically in the last several years. Sinking of EL TORO IIAn Independent Review of
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