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S/V Elke Maria 1978 Islander Freeport 36 - A Robert Perry design, blue water capable, spacious cruiser for a couple. Highly sought after B model with the forward head and main cabin amidship. Two owner boat, very well taken care of and well thought out systems.
Would make a great candidate for a liveaboard or full time cruiser.
Recently married and looking to move out of state.
Equipment: Perkins 4.108 with 1300 hours Fold down transom swim step 2018 Zodiac Cadet with 2.5hp Yamaha stores on foredeck with harness for easy launching/retrieval New (4) 12v deep cycle lead acid batteries (10/20) 380ah combined Varnish Nov 2020 Radar Windlass 80 gal diesel 140 gal freshwater two tanks, with manifold Main sail, hank on 150 Genoa, storm trysle with track on mast, hank on storm jib Adjustable backstay Cabin top Schaefer traveller Genoa/jib track New nonskid on deck and cockpit with Interlux Interdeck Power winch (12v) in cockpit Tabernacle mast Main ground tackle: 300 3/8 chain, 35# cqr, backed with 150 1/2 3 strand Stern anchor: 150 1/2 3 strand, 15 3/8 chain, 20# danforth Lazy jacks Jack likes Autopilot Water maker Hot water heater Battery charger Mascerator Re-plumbed boat in PEX tubing with manifold Freshwater foot pump Stackable galley pans and assortment of galley implements Yanmat diesel 3kW Generator SSB Radio VHF All emergency equipment, harnesses, inflatable and standard life jackets included Emergency manual bulge pump in cockpit 110v Crosby refrigeration and 110v Princess stove Dodger, Lee cloths, sun shade, cockpit shade cover, dinghy cover Stainless steel Kuuma barbecue Stainless steel swim ladder Lifeline netting Varnished mahogany bow seat 7/8 3 strand dock lines with full back up set of cores dock and spring lines
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)
Beside the 2 layouts depicted here, there was also a rare center cockpit model.
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