Seawanhaka one design ss


The Seawanhaka one design ss is a 31.0ft fractional sloop designed by Sparkman & Stephens and built in wood by Nevins Inc. since 1939.

The Seawanhaka one design ss is a heavy sailboat which is slightly under powered. It is very stable / stiff and has an excellent righting capability if capsized. It is best suited as a bluewater cruising boat.

See all sailboats built by Nevins Inc.

See all sailboats designed by Sparkman & Stephens

Seawanhaka one design ss for sale elsewhere on the web:

Main features


Model Seawanhaka one design ss
Length 31 ft
Beam 6.58 ft
Draft 4.50 ft
Country United states (North America)
Estimated price $ 0 ??

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Ratios


Sail area / displ. 15.66
Ballast / displ. 40.71 %
Displ. / length 337.44
Comfort ratio 36.62
Capsize 1.38

Hull


Hull type Monohull fin keel
Construction Wood
Waterline length 21 ft
Maximum draft 4.50 ft
Displacement 7000 lbs
Ballast 2850 lbs
Hull speed 6.14 knots

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Rigging


Rigging Fractional Sloop
Sail area (100%) 357 sq.ft
Air draft 0 ft ??
Sail area fore 133 sq.ft
Sail area main 245.05 sq.ft
I 28 ft
J 9.50 ft
P 33.80 ft
E 14.50 ft

Engine


Nb engines 1
Total power 0 HP
Fuel capacity 0 gals

Accommodations


Water capacity 0 gals
Headroom 0 ft
Nb of cabins 0
Nb of berths 0
Nb heads 0

Builder data


Builder Nevins Inc.
Designer Sparkman & Stephens
First built 1939
Last built 0 ??
Number built 0 ??