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BLACKWATER 18 built by Dan Webb and Feesy (UK) and designed by Daniel Webb. Her first hull was built in 1932 with an overall lengh of 5.61 m or 18.42 ft long

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BLACKWATER 18 Sailboat Specifications​


Overall Length (LOA) m / ft5.61 m / 18.42 ft
Builder(s)Dan Webb and Feesy
Designer(s)Daniel Webb
CountryUnited Kingdom
Hull TypeLong keel w/trans. hung rudder
Number of Hulls Built100
First Hull Built1932
Ballast TypeIron
Rigging TypeMasthead Sloop
Ballast Ratio21.91


Overall Length (LOA) 5.61 m / 18.42 ft
Waterline Length (LWL)4.88 m / 16.00 ft
Beam (width)1.96 m / 6.42 ft
Draft0.91 m / 3.00 ft
Light Displacement (MLC) 2550 kg / 5622 lb
Maximum Displacement2550 kg / 5622 lb
Ballast Weight559 kg / 1232 lb


Capsize Screening Formula (CSF)1.45
Comfort Ratio43.61
Displacement-Length Ratio (DLR)612.75
Ballast Ratio21.91
Sail Area to Displacement9.03

Above Deck

Reported Sail Area16.54 m² / 178.00 ft²
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