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The Seawind II Ketch is a well known blue water boat designed by the naval architect Thomas Gilmore, gaining fame as the first fiberglass design sailboat to circumnavigate the globe.
Udene has newly installed diesel powered Yanma engine with only 170 hrs on the clock!
She also features wheel steering, full keel & hung rudder for stability & true-tracking in a seaway. This blue water cruising design is famous for it’s good sea-keeping qualities, good handling & comfort down below when offshore in spite of her diminutive size.
This is your opportunity to own a very heavy duty yacht, constructed with a thick fiberglass, hand-laid for precision and integrity suitable for long, offshore trips and also great for exploring the Caribbean Islands.
Contact us today to find out more at info@bviyachtsales.com Follow us on Instagram @bviyachtsales
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Equipment: Additional Specs, Equipment and Information:
Boat Name Udene
Specs Keel: Other Hull Shape: Other
Dimensions LOA: 31 ft 7 in Beam: 10 ft 5 in LWL: 25 ft 6 in Maximum Draft: 4 ft 6 in Displacement: 14900 lbs Ballast: 5800 lbs
Engines Engine 1: Engine Brand: Yanmar Engine Model: 3gmf Engine Type: Inboard Engine/Fuel Type: Diesel Drive Type: Direct Drive
Cruising Speed: 6 knots
Tanks Fresh Water Tanks: 2 (60 Gallons) Fuel Tanks: 1 (40 Gallons)
Accommodations Number of single berths: 2 Number of cabins: 1 Number of heads: 1 Seating Capacity: 4
Interior Sleeps 4 Forward Cabin w V-Berth Fold Up Dinette Settees To Both Port and Starboard Enclosed Head Compartment w Fresh Water Sink Bronze Port Lights and Bronze Screens
Engine Yanma 3GMF newly installed 27hp- 170 hours Fresh water cooled Raw water strainer Fuel filter Engine alarm Fuel shut off valve Emergency stop Engine room fire extinguisher Edson Rack and Pinion Steering Stainless Steel Prop Shaft 3 Blade Bronze Prop
Galley and Water Systems Galley & Water systems Oven & 3 burner gas hobs & grill Top load refrigerator Danfrost 12v 110v freezer Teak countertop Stainless steel sink Cutlery, pots pans and utensils Fresh water pump Manual bilge pump
Electrical
Battery charger Battery monitor system Shore power inlet & cord 12v House battery 12v engine battery 1 solar panel Deck, spreader and navigation lights
Deck, Cockpit & Dinghy Mercury 2.3hp outboard engine Avon dinghy Solar panel Swimming ladder Swim platform Dinghy Davits Manual windlass Bow roller Lifelines and stanchions Dodger/Spray hood Cockpit cushions Bimini Top Primarny anchor Brugal 90 chain Secondary CQR anchor Propane tank Fenders and lines 2 life jackets Horseshoe life ring Deck, spreader and Navigation Lights Steering wheel Rack and pinion steering
Electronics GPS Garmin AIS Receiver Depth sounder Plotter Raymarine Wind speed and direction Log-speedometer VHF Compass Wind pilot (New) Stereo & speakers EPIRB
Sails and Rigging Furling genoa Roller furling mainsail Mizzen Sail slab reefing with lazy jacks and sail bag Barlow 10 winch Lewmar 14 winch Lewmar 14 self tailing winch New chain plates (2 years old)
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)
Originally designed for Kaiser Gale Force Yachts which sold the molds to Allied Boat Co. After changing the cabin top and port arrangement, the first boat appeared in 1962.
Early builders under contract were Lunn Laminates of Port Washington, NY and F.L. Tripp & Sons, Westport, MA.
(Allied eventually had it’s own large plant in the Catskills, NY.)
The SEAWIND was the first, as well as one of the last, boats built by Allied Boat Company. In 1978 it was brought back into production and actually built simultaneously with the newer SEAWIND II.
Also offered with a sloop rig. (with mast stepped farther aft.)
I: 35.58’/10.84m
J: 13.16’/4.01m
P: 31.83’/9.70m
E: 14.25’/4.34m
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