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BLANCHARD KNOCKABOUT SR. built by Blanchard Boatworks (USA) and designed by Norman Blanchard Sr.. Her first hull was built in 1935 with an overall lengh of 7.92 m or 26.00 ft long

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BLANCHARD KNOCKABOUT SR. Sailboat Specifications​


Overall Length (LOA) m / ft7.92 m / 26.00 ft
Builder(s)Blanchard Boatworks
Designer(s)Norman Blanchard Sr.
CountryUnited States
Hull TypeFin with rudder on skeg
Number of Hulls Built97
First Hull Built1935
Ballast TypeIron
Rigging TypeFractional Sloop
Ballast Ratio48


Overall Length (LOA) 7.92 m / 26.00 ft
Waterline Length (LWL)6.40 m / 21.00 ft
Beam (width)1.98 m / 6.50 ft
Draft1.07 m / 3.50 ft
Light Displacement (MLC) 1134 kg / 2500 lb
Maximum Displacement1134 kg / 2500 lb
Ballast Weight544 kg / 1200 lb


Capsize Screening Formula (CSF)1.92
Comfort Ratio14.18
Displacement-Length Ratio (DLR)120.51
Ballast Ratio48
Sail Area to Displacement21.77

Above Deck

Reported Sail Area23.23 m² / 250.00 ft²
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