L.O.A. 40’ 10”
L.W.L. 31’ 7”
BEAM 10’ 0”
DRAFT 2’ 2”
DISPLACEMENT 8,750 lbs. (approx.)
BALLAST 3,250 lbs. (approx.)
TYPE Based on Thomas Clapham’s “Roslyn Yawl” Minocqua, 1892 Auxiliary Sail. This enlarged version has 6’ 1” standing headroom, and a MAXI-TRAILERABLE beam of 10’.
RIG Yawl with sliding-Gunter main, club-footed jib and marconi mizzen
SAIL AREA 750 sq. ft.
TANKAGE Fuel: 55 gal. Water: 110 gal.
ACCOMMODATION Layout is for four using saloon settees and large V-berth forward. There is a small galley to starboard and head to port. The centerboard trunk is incorporated as a drop-leaf table to seat four. Interior accommodations are classic and modest. Even by modern standards this is an ultralight, high-performance sailboat.
AUXILIARY POWER Plans show optional inboard 2-cyl diesel (15hp). An outboard can be used in an offset well located just aft of station #6, or incorporating a stern bracket.
CONSTRUCTION Cold-molded marine plywood covered with epoxy-impregnated Xynole-polyester or Dynel cloth. Decks, Houses and coachroofs of ply construction incorporating sawn beams. The hull is built around longitudinals and structural bulkheads, greatly simplifying lofting and hull-layup. All surfaces are developable, allowing full-sheet construction.
PLANS Full construction plans include The Sharpie Book, Construction Notes and Construction Details.
OPTIONS This vessel may incorporate a more modern rig, modified as custom design work. It is, however, the designer’s opinion that the original rig should be employed, utilizing modern materials such as “Oceanus” sail cloth and stainless steel standing rigging, Dacron running rigging, etc. No winches are necessary.
DESIGN By Reuel B. Parker, after Thomas Clapham, based on the 1936 Howard Chapelle tracings, of which I have a copy courtesy of Gordon Hurley.