Duet 25

1974
Designer
Thorkild Lind
Builder
Thorkild Lind
Associations
?
# Built
?
Hull Type
Fin w/transom hung rudder
Construction
FG

Dimensions

Length Overall
25 0 / 7.6 m
Waterline Length
20 6 / 6.3 m
Beam
8 4 / 2.6 m
Draft
4 7 / 1.4 m
Displacement
3,600 lbs / 1,633 kg
Ballast
850 lbs / 386 kg

Rig and Sails

Type
Fractional Sloop
Reported Sail Area
273 ft2 / 25.4 m2
Total Sail Area
272.5 ft2 / 25.3 m2
Mainsail
Sail Area
134.4 ft2 / 12.5 m2
P
28 3 / 8.6 m
E
9 6 / 2.9 m
Mast Height
?
Foresail
Sail Area
138.1 ft2 / 12.8 m2
I
32 6 / 9.9 m
J
8 5 / 2.6 m
Forestay Length
33 7 / 10.2 m

Auxilary Power

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

Accomodations

Water Capacity
?
Holding Tank Capacity
?
Headroom
?

Calculations

Hull Speed
6.08 knots
Sail Area/Displacement
18.6
good performance
Ballast/Displacement
23.61
less stiff, less powerful
Displacement/Length
184.38
light
Comfort Ratio
14.82
lightweight racing boat
Capsize Screening
2.19
better suited for coastal cruising

Notes

Variation of the Nordic Folkboat but with a separate fin keel. Thorkild Lind was a well known boat builder. His own ‘Tibbe’ was used to create a mold from which a number of glassfibre Nordic Folkboats were built.
Shoal Draft vers. draws 4.2’.


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