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1979 lancer 30-3 Boat is in good condition. Sailed her right until the end of the season last year and would not hesitate this year. There are no “surprises” as far as I know with this. It is 1979 so I’m sure there will be things to repair. The deck is solid and I have never noticed any soft spots.
More info: https://sailboatdata.com/sailboat/lancer-30-3
Equipment: - Schaffer roller furling. - Good sails. Full batten main, I believe 130% jib, and a spinnaker sock. - Several extra sails included. - New sail cover 2020 - Bimini top - Functioning head - Rebuilt both aft winches in 2020 - New shore power fuse box 2020 - New cutlass bearing 2018 - Pressure water - Built in cooler - Refinished companionway stars 2020 - New seat cushions 2020 - Functioning auto-tiller - Previous owner converted to propane range, but I have not used it. - Yanmar 2qm15 diesel serviced 2020 with new head gasket and head/crank case descaling. - New engine stop cable run aft 2021 - New AIS/GPS Standard Horizon GX2200 VHS radio 2020 - New antenna cable for radio, but have not had time to install it yet. 2020 - New Depth and Speed gauges 2020 - Cradle included. - Winter storage and spring launch paid.
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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