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34 ft 1994 custom sailing catamaran. 17 ft beam Composite wood and fiberglass with cold-molded hull, PVC foam core construction Performance cat with rotating aluminum mast All electronics, including radar and autopilot present but from the 90s Dual helms Queen bed can be converted into a sofa, 3 sleeping areas can sleep 4 adults comfortably 1 head with manual flush, faucet has a hose so it can be pulled out and used to shower I have a brand new Tohatsu 20hp elec start long shaft remote steer outboard motor w/remote control box/throttle that is not installed yet. It would work for this boat. I’m selling separately for $3000 (retails for $4000) The boat needs deck work, new trampolines, bottom paint, lines, wood and fiberglass work on the top, and paint. I’d say it needs a complete refit The interior woodwork is really good quality and is in good shape Decent main sail, good spinnaker, genoa present but needs to be modified. The boat is based on a Woods design but as built by the original owner Niels Freese and is very much a custom build More pictures and survey available to serious buyers. Motor can be sold separately for $3500. Will show the boat to serious buyers. More pics and info available!
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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