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37 zeeland steel yawl Blue Water, with new 3gmf yanmar, steel is in very good condition considering she spent all its life in Great Lakes, she will go anywhere! recent sandblasted and and coated, ready to sail, can use finishing touches on teak and varnish… shes not sluggish when under full sails she was designed also as a racer by L Moerman in Holland I have all original brochures, she may need some t.l.c. but shell give back more, shes safe, strong, and take you wherever your going, before any glass boats, she was still showing her lines …
Equipment: Yanmar 3gmf 30 diesel 6 ft hard skiff, unlimited sails main, mizzenmast mast, downwinders sail. Enclosed head, auto - helm 2000 till self steering, . Numerous sails … With all due respect I really don’t have a lot of time so if your not really serious about considering purchasing and transferring ownership then please don’t waste either my time nor yours especially during these hard times we are all dealing with right now. deteriorating health forces sale thank you for viewing my posting and have a great day !
VHF, flares, non pressurized alcohol stove, koolatron freezer /cooler , tiller autohlm 2000 self steering, 20 gallons fuel tank /reserve 15 sandblasted and epoxied with products from Amorica Sales in staten is. ny …price is firm …
The theoretical maximum speed that a displacement hull can move efficiently through the water is determined by it's waterline length and displacement. It may be unable to reach this speed if the boat is underpowered or heavily loaded, though it may exceed this speed given enough power. Read more.
Classic hull speed formula:
Hull Speed = 1.34 x √LWL
A more accurate formula devised by Dave Gerr in The Propeller Handbook replaces the Speed/Length ratio constant of 1.34 with a calculation based on the Displacement/Length ratio.
Max Speed/Length ratio = 8.26 ÷ Displacement/Length ratio.311
Hull Speed = Max Speed/Length ratio x √LWL
A measure of the power of the sails relative to the weight of the boat. The higher the number, the higher the performance, but the harder the boat will be to handle. This ratio is a "non-dimensional" value that facilitates comparisons between boats of different types and sizes. Read more.
SA/D = SA ÷ (D ÷ 64)2/3
A measure of the stability of a boat's hull that suggests how well a monohull will stand up to its sails. The ballast displacement ratio indicates how much of the weight of a boat is placed for maximum stability against capsizing and is an indicator of stiffness and resistance to capsize.
Ballast / Displacement * 100
A measure of the weight of the boat relative to it's length at the waterline. The higher a boat’s D/L ratio, the more easily it will carry a load and the more comfortable its motion will be. The lower a boat's ratio is, the less power it takes to drive the boat to its nominal hull speed or beyond. Read more.
D/L = (D ÷ 2240) ÷ (0.01 x LWL)³
This ratio assess how quickly and abruptly a boat’s hull reacts to waves in a significant seaway, these being the elements of a boat’s motion most likely to cause seasickness. Read more.
Comfort ratio = D ÷ (.65 x (.7 LWL + .3 LOA) x Beam1.33)
This formula attempts to indicate whether a given boat might be too wide and light to readily right itself after being overturned in extreme conditions. Read more.
CSV = Beam ÷ ³√(D / 64)
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