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1982 26 S2 7.9 Grand Slam, Hull #141. Excellent condition and ready to race or cruise. Evinrude 6HP 2-cylinder 2-cycle outboard (recently serviced & runs well). CDI FF6 roller furler (Sunbrella sock for furled genoa). Lifting keel and kick-up rudder reduce draft to 13”.
Equipment: 14:1 all Dyneema backstay with stinger, Lewmar 34ST centerboard winch, upgraded sheets and halyards, tiller extension, rebuilt outhaul, Tuff Luff and original SS backstay included, replaced rudder & centerboard, replaced main bulkhead, blister job and barrier coated bottom, Hydrocoat ablative bottom paint (enables unlimited time out of water), polished hull topsides, original carpet liner, original cushions in good shape, bone dry bilge (no leaks), no soft spots on deck, manual bilge pump, KVH SailComp, Uniden UM380 VHF, installed Standard Horizon speedo with a second one still new in the box, wet compass, Windex, 12v battery, trickle charger, LED lights throughout, shore power hookup, 2 Cheap Divers (www.cheap-diver.com), Loos Model B, folding swim ladder, flashlights, Danforth anchor & rode, Life Sling, bosuns chair, boat hook, cockpit drink holder, 5 winch handles, 4 fenders, dock lines, paddles, stocked tool box. 2016 Ullman sails: Lightly used, still in excellent condition with little wear Black Technora Race Mainsail, Carbon Sport Race Genoa (fits roller furler and Tuff Luff). Older Sobstad sails: nylon spinnaker, Dacron main, laminate Kevlar #1, laminate Kevlar #3. No trailer, but just about any 5000 lb. capacity roller or bunk trailer for a boat 20 or longer will work. Asking $8,000 OBRO. Located Yorktown, VA. Many more photos available. Please contact me for the link.
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)
A few (17) were delivered with a fixed keel and masthead rig. (See S2 7.9FK for specs.)
Inboard power available as an option… BMW 7.5 hp diesel.
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