Herreshoff Seawanhaka One-Design

1916
Designer
Nathaniel G. Herreshoff
Builder
Herreshoff Mfg. Co.
Associations
?
# Built
?
Hull Type
Long keel w/trans. hung rudder
Construction
Wood

Dimensions

Length Overall
20 0 / 6.1 m
Waterline Length
16 0 / 4.9 m
Beam
6 11 / 2.1 m
Draft
3 2 / 1 m
Displacement
3,800 lbs / 1,724 kg
Ballast
1,200 lbs / 544 kg (Lead)
drawing

Rig and Sails

Type
Fractional Sloop
Reported Sail Area
262 ft2 / 24.3 m2
Total Sail Area
?
Mainsail
Sail Area
?
P
?
E
?
Mast Height
?
Foresail
Sail Area
?
I
?
J
?
Forestay Length
?

Auxilary Power

Make
?
Model
?
HP
?
Fuel Type
?
Fuel Capacity
?

Accomodations

Water Capacity
?
Holding Tank Capacity
?
Headroom
?

Calculations

Hull Speed
5.36 knots
Sail Area/Displacement
17.21
good performance
Ballast/Displacement
31.58
less stiff, less powerful
Displacement/Length
414.17
ultraheavy
Comfort Ratio
25.4
coastal cruiser
Capsize Screening
1.79
better suited for ocean passages

Notes

aka SEAWANHAKA 16.


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