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Herreshoff 33 Cat Ketch Sailboat (36 overall) designed by Halsey Herreshoff (Freedom Yachts designer) and built in Port Arthur, Texas. Is an upgrade of a Freedom. Fiberglass/Airtex core construction has positive floatation (will not sink!) and will not rot. Open layout below without full bulkheads and a 11’ beam and 6’2” headroom provides an expansive interior comparable to a much larger yacht. Stand-up shower with hot water. Shoal keel with lead ballast allows for a shallow 4’ draft, perfect for cruising the Florida Keys and Bahamas. Un-stayed cat ketch makes for easy single handed sailing. Very clean and well maintained with new sail tracks and bimini top, new bottom job and topsides compounded in November 21.
Equipment: Engine Brand: Yanmar Total Power: 18 HP Engine Model: 2GM20F Engine Type: Inboard Drive Type: Direct Drive Propeller: 2 blade propeller Tanks: Fresh Water-Aluminum (65 Gal) Fuel-Plastic (18 Gal) Holding-Plastic (10 Gal) Electronics: Depthsounder Wind speed and direction Navigation center Autopilot Compass GPS VHF Radio/CD player/Bluetooth Cockpit and salon speakers Inside Equipment Electric bilge pump Manual bilge pump Battery charger Hot water Oven Microwave oven Marine head Refrigerator Electrical Equipment: Shore power inlet Inverter Electrical Circuit: 110V Outside Equipment/Extras: 3 Solar panels Swimming ladder Covers: Bimini Top Mainsail cover, Mizzen cover, pedestal cover Lazyjacks Galley: Force 10 SS 3 burner stove and gimbaled oven 2 Propane tanks in sealed case w/ outboard overflow in Starboard cockpit locker Nova propane gas control panel GE turntable microwave oven 2 Deep SS sinks w/ pullout faucet and built in water filter 12V Pressure hot and cold water Mounted soap dispenser Norcold 110V/12V Refrigerator/Freezer 6 Gallon SS Hot water heater w/ engine exchange 110V GFI outlet Navigation & Electronics: Raymarine ST60 Depth sounder Raymarine ST60 Wind speed & direction Raymarine ST4000 Wheel autopilot Ritchie 6 Compass Garmin Map 192C GPS Plotter Standard Horizon VHF Running lights Electrical Equipment: 110V & 12V Nova & Paneltronics Electrical panels XPower 700W Inverter Xantrex 20 True Charge remote display panel Xantrex True Charge TC20 battery charger 2- Group 31 marine deep cycle batteries as the house bank 1- Group 31 marine deep cycle engine starting battery Xantrex Link 20 Battery status panel 110V Outlets throughout DC Amp, DC Volt & AC Volt gauges HD Battery switch Sony AM/FM/CD Player w/ indoor and cockpit speakers Ipin Solar Regulator by Blue Sky Energy 3- 85W Kyocera solar panels 12V lights throughout Auto/manual bilge pump Shower sump pump and switch 50 30AMP Shore power cord Deck & Hull: Stainless Steel Bow & Stern rails and Stanchions Starboard side aft gate SS Rub rail 2- Forward cleats, 2- amidships cleats & 2- stern cleats 1- Forward Sampson post Teak bow sprit w/ double bow anchor roller 1- Hawse pipe forward Delta spade anchor w/20 5/8 galvanized chain, 40 1/4 SS chain and 150 rode Spare Bruce anchor Teak intermittent toe rail Teak hand rails on deck 2- Teak hatches w/ screens and solar vents 8 Opening ports Non-slip decking Airtex foam cored for positive flotation Large outboard rudder w/ steps 2- Lexan companionway boards Rubber treads on companionway ladder 2 Sole opening panels for shallow bilge access Salon maintenance free sole Raritan hand pump toilet Cockpit: White Sumbrella bimini w/ SS poles Blue Sumbrella helm cover 1- Large lazerette 2- Large port & starboard lockers 30 SS steering wheel on Edson pedestal Water temp, oil pressure and fuel gauges Non-slip cockpit seats Teak cockpit grate Sails & Rigging: 2- Free standing keel stepped Carbon Fiber masts 2- Carbon Fiber half wishbone booms 1- Main sail 1- Mizzen sail Both sails have blue Sumbrella covers and lazy jacks Running rigging in very good condition
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)
Shoal draft: 4.50’
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