#Alcort Sunfish Serial Number serial number#
#Alcort Sunfish Serial Number pro#

A cat with a number 0.6 is likely to sail 6kts in 10kts wind, a cat with a number of 0.7 is likely to sail at 7kts in 10kts wind. The higher the number the faster speed prediction for the boat. It takes into consideration 'reported' sail area, displacement and length at waterline.

Kelsall Sailing Performance (KSP): Another measure of relative speed potential of a boat. A boat with a BN of 1.6 or greater is a boat that will be reefed often in offshore cruising.ĭerek Harvey, 'Multihulls for Cruising and Racing', International Marine, Camden, Maine, 1991, states that a BN of 1 is generally accepted as the dividing line between so-called slow and fast multihulls. 100% fore-triangle only, no overlapping sails.Ĭhris White, 'The Cruising Multihull', (International Marine, Camden, Maine, 1997), states that a boat with a BN of less than 1.3 will be slow in light winds. It takes into consideration the displacement and sail area of main and jib. For boats of the same length, generally the higher the S#, the lower the PHRF.īN - Bruce Number: The Bruce Number is a power-to-weight ratio for relative speed potential for comparing two or more boats. The equation incorporates SA/Disp (100% fore triangle) and Disp/length ratios to create a guide to probable boat performance vs. S# first appeared (that we know of) in TellTales, April 1988, “On a Scale of One to Ten” by A.P. The displacement in cubic feet can be found by dividing the displacement in pounds by 64. The lower the better.ĬSF = Beam/Disp (cubic ft)^.333. The boat is better suited for ocean passages (vs coastal cruising) if the result of the calculation is 2.0 or less. The CSF compares beam with displacement since excess beam contributes to capsize and heavy displacement reduces capsize vulnerability. SLIxxxxxG793 : this boat was manufactured by Sunfish-Laser Inc. Examples: - AMFxxxxxM73x : this boat was manufactured by AMF in 1973. It can be deciphered to give you the manufacturer and model year.

#Alcort Sunfish Serial Number serial number#

3 LOA) x Beam^1.33), where displacement is expressed in pounds, and length is expressed in feet.ĭesigned to determine if a boat has blue water capability. If there is a serial number molded into the hull, it will be in the upper right corner of the transom. Over 50 indicates an extremely heavy bluewater boat.Ĭomfort ratio = D ÷ (.65 x (.7 LWL +. In October, 1986, Alcort Sailboats, Inc., agreed to work with Hans Fogh, then with North Sails, to develop a consistent and. On FebrruDavid Loveless and Jerry DeGarmo purchased the business, naming it Alcort Sailboats, Inc. Numbers below 20 indicate a lightweight racing boat ģ0 to 40 indicates a moderate bluewater cruising boat Ĥ0 to 50 indicates a heavy bluewater boat On Jthe International Sunfish Class Association assumed Class management from the manufacturer. Consider, though, that the typical summertime coastal cruiser will rarely encounter the wind and seas that an ocean going yacht will meet. It is based on the fact that the faster the motion the more upsetting it is to the average person. It provides a reasonable comparison between yachts of similar size and type. It’s not possible to determine the exact manufacture date because there is no serial number on the boat. The sailboat manufacture date is pre-1971 based on the old style rudder with 2 bronze fittings and the flanged cockpit. This is a ratio created by Ted Brewer as a measure of motion comfort. This is a vintage pre-1971 ALCORT Sunfish in very good condition (no trailer). The lower a boat's Displacement/Length (LWL) ratio, the less power it takes to drive the boat to its nominal hull speed.

#Alcort Sunfish Serial Number pro#

Internal applications, then our B2B based Bizapedia Pro API™ might be the answer for you.A sail area/displacement ratio below 16 would be considered under powered ġ6 to 20 would indicate reasonably good performance Ībove 20 suggests relatively high performance.Ī Ballast/Displacement ratio of 40 or more translates into a stiffer, more powerful boat that will be better able to stand up to the wind.īal./Disp = ballast (lbs)/ displacement (lbs)*100

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