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GULFSTAR 43 CENTER-COCKPIT SLOOP ROUND THE WORLD or LIVE-ABOARD - this boat has done both. From the Golden Age of fiberglass yachts, this 1979 boat is solidly built with a beautiful teak interior and a safe, thick hull. A renowned bluewater yacht, with a RECENT ENGINE replacement, new Raymarine instruments, and a comfortable live-aboard layout. The Gulfstar 43 Mark II is a center cockpit sloop, 43 long, nearly 12 beam, and a 5 modified fin keel with skeg-hung rudder. She is in good condition, ready to go.
INTERIOR: Inside she is beautifully built in teak, with a teak and holly sole, and over six foot headroom in most areas. From the bow, she has a double berth forecabin: private head with two entrance doors; a large salon with a leafed table, opposing settees and a diesel heater; a full galley with recent refrigerator; a navigation area and seat with integral toolbox; then back through a passageway lined with cupboards to the engine room; and on to the master cabin with queen bed and separate head. Huge amounts of storage throughout, with more fitted cupboards than usual. The first owner was a rocket scientist (really!) I have owned and maintained her since then, but I have hardly used her over the past few years, so I have reluctantly decided to sell her. Private sale, no dealers please.
Equipment: EXTERIOR: She has Profurl roller furling on both the jib and the main, a cruising spinnaker in a sock, and a storm jib, plus an unused spare mainsail. She has sprayhood and bimini, wide side decks, fore and aft anchors with heavy winch and lots of chain, Hypalon inflatable with outboard, and upgraded stainless steel opening portholes. EQUIPMENT: In the sound-proofed engine room the old Perkins is replaced by a Kubota/Beta 40 horse power which starts and runs perfectly. It has under 100 hours, being little used since replacement three years ago. The generator is a trusty Westerbeke 3.8kw. Kuuma water heater. Recent and little used Raymarine radar, autopilot and navigation, wind and speed. Simrad DSC VHF radio plus a Horizon hand-held VHF. She also has a HUGE amount of spares and equipment from her round-the-world sailing days, including wind generator, wave generator, storm drogue, boom brake, two Lectrasan head treatment units, and large amounts of Sunbrella upholstery fabric. She is ready to go, but the new owner may want to paint/antifoul the hull (regularly cleaned by divers), maybe update some of the upholstery, and perhaps replace the lenses of the main hatches.
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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