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UFO 31

UFO 31 built by Colvic Craft (UK) and designed by Holman & Pye. Her first hull was built in 1976 with an overall lengh of 9.41 m or 30.87 ft long

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UFO 31 Sailboat Specifications​

Features

Overall Length (LOA) m / ft9.41 m / 30.87 ft
Builder(s)Colvic Craft
Designer(s)Holman & Pye
BrandUfo
CountryUnited Kingdom
Hull TypeFin w/spade rudder
First Hull Built1976
Last Hull Built1981
Ballast TypeIron
Rigging TypeMasthead Sloop
UnsinkableNo
TrailerableNo
Ballast Ratio49.93

Dimensions

Overall Length (LOA) 9.41 m / 30.87 ft
Waterline Length (LWL)7.81 m / 25.63 ft
Beam (width)3.06 m / 10.04 ft
Draft1.68 m / 5.50 ft
Light Displacement (MLC) 3084 kg / 6800 lb
Maximum Displacement3084 kg / 6800 lb
Ballast Weight1540 kg / 3395 lb

Performance

Capsize Screening Formula (CSF)2.12
Comfort Ratio17.89
Displacement-Length Ratio (DLR)180.31
Ballast Ratio49.93
Sail Area to Displacement18.02

Above Deck

Estimated Forestay Length12.33 m / 40.45 ft
Reported Sail Area37.44 m² / 403.00 ft²
Total Sail Area37.40 m² / 402.58 ft²
Mainsail Area15.22 m² / 163.88 ft²
I38.50 ft * 11.73 m
J12.40 ft * 3.78 m
P34.50 ft * 10.52 m
E9.50 ft * 2.90 m
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