Description. the m or marblehead class, sometimes called the "50/800", is a medium size high performance development class. it's original concept in the 1930's was to produce the largest model that would conveniently fit in the standard american car of the time.. Vintage marblehead; boat registration; usvmyg > boats & stuff dimensioned and balanced for the marblehead class model racing yacht. sail plans: dimensioned and balanced for the marblehead class model racing yacht. by walter k. moss. on a conventional marblehead design the sail plans suggested should prove most satisfactory, although it. The m or marblehead class is a medium size high performance development class. it's original concept in the 1930's was to produce the largest model that would conveniently fit in the standard american car of the time. the class is a development class with the main restrictions being a hull length of 50 inches and a sail area of 800 square inches..
Marblehead gothic mk3 marblehead: is the latest iteration of the gothic shape. this design is based on the successful phoenix mk 6 and 7 ten rater and includes several refinements and two alternate deck designs.. The plans for this "peony" design sloop were influenced by free-sailing model sailboats from the late 30's and 40's and were developed by thom mclaughlin of sublime boatworks. this and other vintage sailboats race in the amya vintage marblehead (vm) 50/800 (50" overall length/800" sq. in. of sail area) class.. This website is dedicated to the promotion of competitive international marblehead class radio controlled yacht racing in the uk. the class is governed by the mya (model yachting association) through its affiliation with isaf- irsa international radio sailing association..
