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Sailboat Guide

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Sailboat

Adams 21

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

Dimensions

Length Overall
21.16 ft / 6.45 m
Waterline Length
17.49 ft / 5.33 m
Beam
7.91 ft / 2.41 m
Draft
1.51 ft / 0.46 m 4.00 ft / 1.22 m
Displacement
1,964 lb / 891 kg
Ballast
? (Lead)
drawing

Rig and Sails

Type
Fractional Sloop
Reported Sail Area
220.00 ft2 / 20.44 m2
Total Sail Area
?
Mainsail
Sail Area
?
P
?
E
Mast Height
Foresail
Sail Area
?
I
J
Est. Forestay Len.
?

Spinnaker

SPL/TPS
ISP

Auxilary Power

Make
?
Model
?
HP
?
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
less stiff, less powerful
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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