NORTHWEST 21

NORTHWEST 21
NORTHWEST 21

Beta Marine

Beta Marine

Sailboat Specifications

Definitions
Hull Type: Fin with rudder on skeg
Rigging Type: Masthead Sloop
LOA: 6.40 m
LWL: 5.11 m
S.A. (reported): 18.58 m²
Beam: 2.41 m
Displacement: 975 kg
Ballast: 318 kg
Max Draft: 1.24 m
Construction: FG
Ballast Type: Lead
First Built: 1975
# Built: 140
Builder: Northwest Yacht Constructors Ltd. (USA)
Designer: Gary Lundy

Sailboat Calculations

Definitions
S.A. / Displ.: 19.25
Bal. / Displ.: 32.56
Disp: / Len: 204.24
Comfort Ratio: 11.70
Capsize Screening Formula: 2.46
S#: 3.22
Hull Speed: 5.48 kn
Pounds/Inch Immersion: 474.01 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Rig and Sail Particulars

HELP
I: 8.53 m
J: 2.54 m
P: 7.80 m
E: 2.74 m
S.A. Fore: 10.83 m²
S.A. Main: 10.70 m²
S.A. Total (100% Fore + Main Triangles): 21.54 m²
S.A./Displ. (calc.): 22.32
Est. Forestay Length: 8.90 m

Sailboat Links

Builders: Northwest Yacht Constructors Ltd. (USA)
Download Boat Record:

Notes

Also available with a swing keel.