DIMENSIONS

• LOA: 38'4" (not including bow sprit and davits)
• LWL: 35'2"
• Displacement: 20,000 lbs. (She weighed 17,600 lbs. without an interior)
• Ballast: 8,000 lbs.
• Beam: 12'4"
• Draft: 5'6" loaded
• Sail Area: 791 sq. ft. (388 sq. ft. main)
• Water: 100 gal. (so far)
• Fuel: 150 gal.
• Holding tank: 40 gal.
• Batteries: 2 banks of 450 AH (two 8-Ds in each bank), start battery, windlass battery
• Engine: 48 hp Yanmar, 3 cyl. w/turbo
• Configuration: modified fin, skeg hung rudder, sloop
• Alloys: 6061-T6, 5456, 5086, 5083
• Designer: Ted Brewer / Peter Dahl
• Builder: Frank Sinek / Peter Dahl

RATIOS:

• Prismatic Coefficient: 0.555 feet
• Fineness Coefficient: 0.676
• Capsize Screening factor: 1.82
• Weight to sink the boat 1¨: 1340 lbs.
• Waterline Area: 251.5 sq. feet
• M.T. 1¨: 1085 ft./lb.
• Hull Speed: 7.95 knots
    1.34 * LWL^1/2
    1.34 * 35.20^1/2
• Displacement / Length Ratio: 205
    displacement (long tons) / (0.01 * LWL)^3
    (20000 / 2240) / (0.01 * 35.20)^3
• Sail Area to Displacement ratio: 17.20
    sail area (sq. ft) / displacement (cu. ft)^2/3
    791 / (20000 / 64 lbs/cu ft)^(2/3)
• Comfort ratio (Brewer, page 8): 29.93 (average cruisers are 30-40, racers are below 20)
    displacement / (0.65 * (0.7 * LWL + 0.3 * LOA) * beam^1.333)
    20000 / (0.65 * (0.7 * 35.20 + 0.3 * 38.25) * 12.333^1.333)
• Ballast Ratio: 0.4 (0.25 to 0.5, 0.4 suggests more emphasis on gravity stability than form stability)
    ballast / displacement
    8000 / 20000
• Capsize Risk: 0.1097
    beam / (displacement / 0.9 * 64) ^ 0.333
    12.333 / (20000 / 0.9 * 64) ^ 0.333
• Fineness: 3.1 (3.0 - 4.0 and above suggests a long and slender hull which promotes easy motion, high speed (low drag), and good balance when heeled.)
    LOA / beam
    38.25 / 12.333

• Understanding Boat Design, 4th edition, Ted Brewer, International Marine, Camden, Maine. 1994
• A good on-line explanation of these measurements can be found here