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HULLMASTER 31

HULLMASTER 31 built by Hullmaster Boats Ltd. (CAN) and designed by Edward S. Brewer. Her first hull was built in 1973 with an overall lengh of 9.53 m or 31.25 ft long

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HULLMASTER 31 Sailboat Specifications​

Features

Overall Length (LOA) m / ft9.53 m / 31.25 ft
Builder(s)Hullmaster Boats Ltd
Designer(s)Edward S. Brewer
BrandHullmaster
CountryCanada
Hull TypeLong Keel
First Hull Built1973
Last Hull Built1979
Ballast TypeLead
Rigging TypeMasthead Sloop
UnsinkableNo
TrailerableNo
Freshwater Tank Capacity lt/gal129 L / 34 gal
Ballast Ratio42.03

Dimensions

Overall Length (LOA) 9.53 m / 31.25 ft
Waterline Length (LWL)6.91 m / 22.67 ft
Beam (width)2.82 m / 9.25 ft
Draft1.42 m / 4.67 ft
Light Displacement (MLC) 4695 kg / 10350 lb
Maximum Displacement4695 kg / 10350 lb
Ballast Weight1973 kg / 4350 lb

Performance

Capsize Screening Formula (CSF)1.70
Comfort Ratio32.73
Displacement-Length Ratio (DLR)396.59
Ballast Ratio42.03
Sail Area to Displacement15.38

Above Deck

Estimated Forestay Length12.05 m / 39.53 ft
Reported Sail Area42.27 m² / 455.00 ft²
Total Sail Area42.29 m² / 455.18 ft²
Mainsail Area20.51 m² / 220.80 ft²
I37.50 ft * 11.43 m
J12.50 ft * 3.81 m
P32.00 ft * 9.75 m
E13.80 ft * 4.21 m
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