Etna’s Spirit
NAME: SPIRIT 6.5 DESIGNER: HANK HINCKLEY
RIG TYPE: MAST HEAD SLOOP CONTRUCTION: FIBER GLASS
BUILD BY: NORTH AMERICAN YACHT HULL TYPE: SWING KEEL
LOA: 21.25’ / 6.48m LWL : 18.75’ / 5.72m
BEAM: 7.83’ / 2.39m DRAFT MAX: 5.0’ / 1.52m
DRAFT MIN: 1.70’ / 0.52m DISPLACEMENT: 2100 lbs. / 953 kgs.
BALLAST: 550 lbs. / 249 kgs. SAIL AREA: 195 ft2 / 18.12 m2
RIG DIMENSIONS:
I: 25.15'/7.67m P: 21.10'/6.43m J: 8.82'/2.69m E: 8.00'/2.44m SA/FORE: 110.91 ft2/10.30m2
SA/MAIN: 84.40 ft2/7.84 m2 TOTAL CALC. SA: 195.31 ft2 / 18.14m2 DL RATIO: 142.22
FORESTAY LENGTH: 26.65' / 8.12m
DERIVED QUANTITIES:
DISPLACEMENT TO LWL: 142
Displacement to LWL: A medium value would be 200. 300 would be high (Heavy Cruising Boat) and 100 would be low (Ultra Light Displacement-ULDB). Boats with low numbers are probably uncomfortable and difficult to sail.
HULL SPEED: 5.8
Hull Speed: This is the maximum speed of a displacement hull. Some racers and lighter boats are able to achieve greater speed by lifting over the bow wave and riding on top of the water,that is, planing.
SAIL AREA TO DISPLACEMENT: 19.03
Sail Area to Displacement: The sail area is the total of the main sail and the area of the front triangle. I cannot be sure that this datum was entered correctly for each listed boat. A racing boat typically has large sail area and low displacement. A number less than 13 probably indicates that the boat is a motorsailer. High performance boats would be around 18 or higher.
BALANCE TO DISPLACEMENT: 26.13%
DISPLACEMENT TO LENGTH: 142.22
LWL TO BEAM: 2.39
LWL to Beam: A medium value would be 2.7. 3.0 would be high and 2.3 would be low
MOTION COMFORT: 10.66
Motion Comfort: Range will be from 5 to 60+ with a Whitby 42 at the mid 30's. The higher the number the more comfort in a sea. This figure of merit was developed by the Yacht designer Ted Brewer and is meant to compare the motion comfort of boats of similar size and types.
CAPSIZE RATIO: 2.45
Capsize Ratio: A value less than 2 is considered to be relatively good; the boat should be relatively safe in bad conditions. The higher the number above 2 the more vulnerable the boat. This is just a rough figure of merit and controversial as to its use.
SAILING CATEGORY: RACER
Sailing Category: The four categories are racer, racer/cruiser, cruiser/racer, and cruiser in order of descending performance
POUND/INCH: 525
Pounds per Inch Immersion: The weight required to sink the yacht one inch. If the boat is in fresh water multiply the result by 0.975. If you know the beam at the waterline (BWL) multipy the result by BWL/Beam.
NAME: SPIRIT 6.5 DESIGNER: HANK HINCKLEY
RIG TYPE: MAST HEAD SLOOP CONTRUCTION: FIBER GLASS
BUILD BY: NORTH AMERICAN YACHT HULL TYPE: SWING KEEL
LOA: 21.25’ / 6.48m LWL : 18.75’ / 5.72m
BEAM: 7.83’ / 2.39m DRAFT MAX: 5.0’ / 1.52m
DRAFT MIN: 1.70’ / 0.52m DISPLACEMENT: 2100 lbs. / 953 kgs.
BALLAST: 550 lbs. / 249 kgs. SAIL AREA: 195 ft2 / 18.12 m2
RIG DIMENSIONS:
I: 25.15'/7.67m P: 21.10'/6.43m J: 8.82'/2.69m E: 8.00'/2.44m SA/FORE: 110.91 ft2/10.30m2
SA/MAIN: 84.40 ft2/7.84 m2 TOTAL CALC. SA: 195.31 ft2 / 18.14m2 DL RATIO: 142.22
FORESTAY LENGTH: 26.65' / 8.12m
DERIVED QUANTITIES:
DISPLACEMENT TO LWL: 142
Displacement to LWL: A medium value would be 200. 300 would be high (Heavy Cruising Boat) and 100 would be low (Ultra Light Displacement-ULDB). Boats with low numbers are probably uncomfortable and difficult to sail.
HULL SPEED: 5.8
Hull Speed: This is the maximum speed of a displacement hull. Some racers and lighter boats are able to achieve greater speed by lifting over the bow wave and riding on top of the water,that is, planing.
SAIL AREA TO DISPLACEMENT: 19.03
Sail Area to Displacement: The sail area is the total of the main sail and the area of the front triangle. I cannot be sure that this datum was entered correctly for each listed boat. A racing boat typically has large sail area and low displacement. A number less than 13 probably indicates that the boat is a motorsailer. High performance boats would be around 18 or higher.
BALANCE TO DISPLACEMENT: 26.13%
DISPLACEMENT TO LENGTH: 142.22
LWL TO BEAM: 2.39
LWL to Beam: A medium value would be 2.7. 3.0 would be high and 2.3 would be low
MOTION COMFORT: 10.66
Motion Comfort: Range will be from 5 to 60+ with a Whitby 42 at the mid 30's. The higher the number the more comfort in a sea. This figure of merit was developed by the Yacht designer Ted Brewer and is meant to compare the motion comfort of boats of similar size and types.
CAPSIZE RATIO: 2.45
Capsize Ratio: A value less than 2 is considered to be relatively good; the boat should be relatively safe in bad conditions. The higher the number above 2 the more vulnerable the boat. This is just a rough figure of merit and controversial as to its use.
SAILING CATEGORY: RACER
Sailing Category: The four categories are racer, racer/cruiser, cruiser/racer, and cruiser in order of descending performance
POUND/INCH: 525
Pounds per Inch Immersion: The weight required to sink the yacht one inch. If the boat is in fresh water multiply the result by 0.975. If you know the beam at the waterline (BWL) multipy the result by BWL/Beam.
Basic Check List. Feel free to add your extras...
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bareboat_cruising_equipment_checklist.docx | |
File Size: | 18 kb |
File Type: | docx |
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