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Last Chance ,Last Week. Priced in 2024 at $10,900 . Hunter 31 Sailboat 1985 for sale . With 4 sails including an older Main , a young 100 % jib , an old large racing genoa , spinnaker , and pole . Yanmar 2GM diesel is original but in good working order. ( No engine hours available ) . Folding 2 blade prop helps sailing speed. Draft is 5ft 3inches , fin keel. This fast cruiser version has ample space and comfort ( 2 double cabins ) with a great sailing reputation and a delight to handle to which I can attest after a summer of liveaboard cruising locally after a delivery up from the Chesapeake. She is a little weathered and worn , possibly some upgrades and cosmetic work to suit your taste and budget may be needed . Note , There is no Dodger or Bimini . We have continued maintaining and improving her as we go . Her price is well below the ‘BUC recommended’ . Ask for the data sheet I will email it. She can be sailed immediately without yard work or repairs. All on board systems operating. Kayaks not included , old 8 foot inflatable included . Delivery by Sea offered with our return train , ferry and or bus fare paid ( CT , RI , NY inside Long Island Sound when sale completed. YouTube channel for sailing videos : @seabrit102
Equipment: 100%jib , Very Good , less than 3yrs old . Working Roller furling system by Harken . 150 % Old laminated Genoa , usable but stained etc. Mainsail , 2 reefs , years unknown , serviceable. Cover. Large Spinnaker , no repairs , still in good condition. Pole .Good set of spinnaker sheets. Yanmar 2GM 13hp diesel 1985 , working order, serviced June 23. New air filter, v belts. New Yanmar Stop cable. Jabsco Toilet plus holding tank , working order. New joker valve. Orego 2 burner alcohol stove and oven , working order. VHF Radio , Raytheon ST60 Speed and depth. Steering compass. Hot and cold pressure water system. New auto bilge pump. Running rigging and some blocks replaced , winches serviced . Mantus Anchor chain and rode ( all new ) Fortress 16 plus chain and rode Bruce 7kg plus chain and rode Fenders , lines , pair spinnaker sheets. Old 8 foot inflatable dinghy with oars, seat , floor, outboard bracket. Rail mounted barbecue.
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)
Shoal draft: 4.0’/1.22m
Disp. (Shoal draft): 9900 lbs/4494 kg
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