SAN JUAN 21-2

SAN JUAN 21-2
SAN JUAN 21-2

Beta Marine

Beta Marine

Sailboat Specifications

Definitions
Hull Type: Swing Keel
Rigging Type: Fractional Sloop
LOA: 6.25 m
LWL: 5.18 m
S.A. (reported): 17.93 m²
Beam: 2.13 m
Displacement: 567 kg
Ballast: 181 kg
Max Draft: 1.22 m
Min Draft: 0.21 m
Construction: FG
First Built: 1974
Builder: Clark Boat Co. (USA)
Designer: Don Clark

Sailboat Calculations

Definitions
S.A. / Displ.: 26.66
Bal. / Displ.: 32.00
Disp: / Len: 113.58
Comfort Ratio: 8.01
Capsize Screening Formula: 2.60
S#: 5.40
Hull Speed: 5.52 kn
Pounds/Inch Immersion: 425.20 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Rig and Sail Particulars

HELP
I: 6.86 m
J: 2.50 m
P: 7.01 m
E: 2.67 m
S.A. Fore: 8.58 m²
S.A. Main: 9.35 m²
S.A. Total (100% Fore + Main Triangles): 17.93 m²
S.A./Displ. (calc.): 26.66
Est. Forestay Length: 7.30 m

Sailboat Links

Builders: Clark Boat Company
Associations: San Juan 21 Class Association
Download Boat Record:

Notes

The SAN JUAN MARK II was introduced in 1974 after nearly 1000 of the earlier versions had been built. The MARK II, is a raised deck version of the MARK I with the companionway moved aft to allow for more interior space. The Mark I and Mark II were produced concurrently, until the last Mark I was produced in 1977.