Harbor 20

1997
insignia
Designer
Steven Schock
Builders
Schock W.D.
One Design Composites
Association
Harbor 20 Class Association
# Built
?
Hull Type
Fin w/bulb & spade rudder
Construction
FG

Dimensions

Length Overall
20 0 / 6.1 m
Waterline Length
16 11 / 5.2 m
Beam
6 11 / 2.1 m
Draft
3 6 / 1.1 m
Displacement
1,800 lbs / 816 kg
Ballast
900 lbs / 408 kg
drawing

Rig and Sails

Type
Fractional Sloop
Reported Sail Area
220 ft2 / 20.4 m2
Total Sail Area
220.1 ft2 / 20.5 m2
Mainsail
Sail Area
130 ft2 / 12.1 m2
P
25 11 / 7.9 m
E
10 0 / 3.1 m
Mast Height
?
Foresail
Sail Area
90.1 ft2 / 8.4 m2
I
25 9 / 7.9 m
J
6 11 / 2.1 m
Forestay Length
26 8 / 8.1 m

Auxilary Power

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

Accomodations

Water Capacity
?
Holding Tank Capacity
?
Headroom
?

Calculations

Hull Speed
5.52 knots
Sail Area/Displacement
23.79
high performance
Ballast/Displacement
50.0
stiffer, more powerful
Displacement/Length
163.56
light
Comfort Ratio
11.56
lightweight racing boat
Capsize Screening
2.3
better suited for coastal cruising

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