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: 21.00 ft
LWL: 16.75 ft
S.A. (reported): 200.00 ft²
Beam: 7.92 ft
Displacement: 2,150.00 lb
Ballast: 700.00 lb
Max Draft: 4.08 ft
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: 28.00 ft
J: 8.33 ft
P: 25.60 ft
E: 9.00 ft
S.A. Fore: 116.62 ft²
S.A. Main: 115.20 ft²
S.A. Total (100% Fore + Main Triangles): 231.82 ft²
S.A./Displ. (calc.): 22.32
Est. Forestay Length: 29.21 ft

Sailboat Links

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

Notes

Also available with a swing keel.