Adams 21

1977
Designer
Joe Adams
Builder
Jarkan Yachts (AU)
Associations
?
# Built
?
Hull Type
Keel/Cbrd.
Construction
FG

Dimensions

Length Overall
21 1 / 6.5 m
Waterline Length
17 5 / 5.3 m
Beam
7 10 / 2.4 m
Draft
1 6 / 0.5 m 4 0 / 1.2 m
Displacement
1,960 lbs / 891 kg
Ballast
? (Lead)
drawing

Rig and Sails

Type
Fractional Sloop
Reported Sail Area
220 ft2 / 20.4 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
5.6 knots
Sail Area/Displacement
22.44
high performance
Ballast/Displacement
?
Displacement/Length
163.88
light
Comfort Ratio
10.32
lightweight racing boat
Capsize Screening
2.53
better suited for coastal cruising

Notes

Originally called the SEAHORSE 6.


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