Missing Links
Maryland-based consulting naval architect William Hockberger said he was “searching for something else” last August when he stumbled on “a paper read before the Institute of Naval Architects, in London,… Read more »
Design
The Unsinkable
“The Unsinkable” and Additional Thoughts on Watertight Subdivision in Small Yachts In response to Eric Sorensen’s Parting Shot “The Unsinkable” in Professional BoatBuilder No. 140, Professional Engineer Christopher D. Barry… Read more »
VGWS Rigging Details
In their story “Working-Class Wing” (Professional BoatBuilder magazine No. 140, page 60), Greg and Patrick Johnston describe their development of the variable geometry wing sail, or VGWS, as a practical… Read more »
A Biennial Gathering of Powerboat Designers and Engineers
The Chesapeake Sailing Yacht Symposium is approaching age 40. Its younger counterpart, the Chesapeake Power Boat Symposium, just turned four. Each event takes place in Annapolis, Maryland, in alternate years;… Read more »
One Man’s Quest for a Fully Aerated Hull
Recently we heard from a fellow in Australia who has been experimenting with a somewhat radical hull surface. A welder by trade, Roger Mutimer says he has been designing and… Read more »
Design Challenge IV Call for Entries
For pure fun, speed, and versatility on the water, it’s hard to beat the family runabout. Whether for fishing, picnicking, waterskiing, or just whizzing around on a sunny summer’s day,… Read more »
Direct Descendant
Drawn in late 1963 by Renato “Sonny” Levi and currently produced in Italy, the composite-built 30′/9.1m fast cruiser we’re looking at here, called the Levi Corsair, has a pedigreed lineage…. Read more »
PechaKucha At IBEX 2011
Among other firsts introduced at IBEX 2011 was Professional BoatBuilder magazine’s Design X PechaKucha for boat designers. What’s that? you ask. PechaKucha is a rigid, allegedly Japanese presentation format that… Read more »
Building Foil-Shaped Centerboards
Traditional centerboards, with few exceptions, are pie-shaped (triangular), and pivot from their forward lower corner. They typically have little or no foil shape. As long as they are located such… Read more »
Design Challenge III Winners
Winners of Professional BoatBuilder’s “Design Challenge III: A Fast Expedition Sailboat” are featured in the Design Brief in No. 133, the IBEX issue of the magazine, scheduled for print and… Read more »
