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Felix is a custom 37 foot composite wood catboat. She is based on the designs of early 1900’s Barnegat Bay Catboats. But Felix is far from traditional in form and function. She is the largest Catboat known on the East coast and the builder has included some very high-tech design elements like solid Ash & Cedar Composite Hull, Carbon Fiber Rudder, Marconi rig with carbon fiber spars, Technora laminated main & Jib and a hydraulic propulsion system that raises into the hull when not in use. Her very wide 14’ beam enables Felix to carry a tall 1000 sq ft sail plan and no ballast while displacing only 8,500 lbs! Felix is an absolute thrill to sail! This combination of stability, speed and comfort is unmatched even by much larger vessels.
Felix is powered by a S3-L to Westerbeke diesel generator which runs the AC components, charges the DC batteries and also powers the hydraulics. She is fitted with Garmin chartplotter, West Marine VHF, hot-cold pressure water, Raritan “Electrosan” with Lavac head & Shower, HVAC system and other modern amenities in a comfortable cabin. Felix has just returned from her 2022 refit including all new paint inside and out. She is ready to go and available to see by appointment in Oriental NC.
Equipment: Felix Electrical & Mechanical Equipment Westerbeke 8kw diesel gen-set/hydraulic PTO Murphy Engine gauges Raising/Lowering hydraulic drive unit 2 West Marine 6v house batteries, 230 Amp. Hr. model15020340 1 West Marine 12v starting battery Pro Mariner ProNautic 12/50 Battery charger 30 Amp Smart Plug shorepower receptical Blue Sea AC and DC distribution panels with guages “Arid Dry” Bilge system that incorporates delay relays & remote bilge pumps and all areas of the bilge very dry. 2 PAR “Pony Pump” remote bilge pumps Cruisair STX12-410A 12,000 BTU HVAC System with “SmartStart” Soft starter by Dometic Raritan Electro-San waste treatment system with Lavac marine head
Felix Decks, Rigging & Navigation The decks are comprised of 3/4” plywood sheathed in fiberglass 1X19 rigging with Hi-Mod terminals, secured to vessel with stainless steel chainplates and stem-fitting Custom carbon-fiber Mast & Boom with 1 Harken& 2 Lewmar winches Garhauer ridgid boom vang Harken BattCar system Harken mainsheet & Traveler with Lewmar self-tailing winch Schafer Jib cars, 2ea Lewmar self-tailing winches Doyle 700 sq ft Technora laminated mainsail & 300 sq ft jib, Asymmetric spinnaker Edson radial drive cable steering with Edson pedestal compass and electronics mount Garmin GPS 7405 Chart-Plotter West Marine VHF LED Running lights Adequate fenders, dock-lines & required safety equipment
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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