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Go to Sailing Texas classifieds for current sailboats for sale Lindenberg 26, 1979 sailboat for sale Hull #41
Modified Rig: Boom lowered 1.5 feet, and extended 1.5 feet by previous owner for improved light air performance.
Full suite of North 3Di sails: Main 2019, No.1 155% headsail 2018, No.3 98% jib 2022. 2 additional mainsails, 3 spinnakers, jib top headsail, storm jib only sailed once. Bottom faired and painted in 2017, repainted with Pettit Black Widow in 2021. CNC milled rudder by Phil’s Foils and custom carbon fibre rudder head, 2018. Antal self-tailing primary winches, with rebuild kits. Harken Carbo Racing foil with twin grooves. Garhauer aluminum rigid vang. 2004 Honda 8hp 4-stroke, long shaft outboard. 17 gallon built in fuel tank. Lowrance HDS Chartplotter, RayMarine depth sounder and speedlog,LED nav lights, new battery and guess switch 2022. Boss Audio stereo, Digital AIT 3000 AIS Tranciever, NMEA 2000 backbone. Standing rigging and running rigging all good, synthetic life lines, duplicate jib and tapered spin sheets. Porta-potti, removable dining table, canvas winch and mainsail covers. Boat is currently moored at Seabrook Shipyard Marina, Seabrook, TX.
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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