BOSTROM 31 MKII

BOSTROM 31 MKII photo BOSTROM 31 MKII drawing

Sailboat Specifications


Hull Type:
Fin with rudder on skeg
Rigging Type:
Masthead Sloop
LOA:
30.61 ft / 9.33 m
LWL:
25.98 ft / 7.92 m
Beam:
9.06 ft / 2.76 m
S.A. (reported):
370.00 ft2 / 34.37 m2
Draft (max):
5.91 ft / 1.80 m
Displacement:
7,275 lb / 3,300 kg
Ballast:
3,638 lb / 1,650 kg
S.A./Disp.:
15.82
Bal./Disp.:
50.01
Disp./Len.:
185.21
Construction:
FG
First Built:
1977
Last Built:
1984
Designer:
Bruno Boström/Grandinsson

Auxiliary Power/Tanks (orig. equip.)

Make:
Yanmar

Sailboat Calculations

S.A./Disp.:
15.82
Bal./Disp.:
50.01
Disp./Len.:
185.21
Comfort Ratio:
21.81
Capsize Screening Formula:
1.87
S#:
2.74

Rig and Sail Particulars

I:
37.40 ft / 11.40 m
J:
11.98 ft / 3.65 m
P:
31.82 ft / 9.70 m
E:
9.19 ft / 2.80 m
S.A. Fore:
224.03 ft2 / 20.81 m2
S.A. Main:
146.21 ft2 / 13.58 m2
S.A. Total (100% Fore + Main Triangles)
370.24 ft2 / 34.40 m2
S.A./Disp. (calc.):
15.83
Est. Forestay Len.:
39.27 ft / 11.97 m

Notes

Same hull as BOSTROM 31 but with more freeboard and new deck.

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