BOSTROM 31 MKII

BOSTROM 31 MKII
BOSTROM 31 MKII

Beta Marine

Beta Marine

Sailboat Specifications

Definitions
Hull Type: Fin with rudder on skeg
Rigging Type: Masthead Sloop
LOA: 30.61 ft
LWL: 25.98 ft
S.A. (reported): 370.00 ft²
Beam: 9.06 ft
Displacement: 7,275.00 lb
Ballast: 3,638.00 lb
Max Draft: 5.91 ft
Construction: FG
First Built: 1977
Last Built: 1984
Designer: Bruno Boström/Grandinsson

KLSC Leaderboard

KLSC Leaderboard

Auxiliary Power/Tanks (orig. equip.)

Make: Yanmar

Sailboat Calculations

Definitions
S.A. / Displ.: 15.82
Bal. / Displ.: 50.01
Disp: / Len: 185.21
Comfort Ratio: 21.81
Capsize Screening Formula: 1.87
S#: 2.74
Hull Speed: 6.83 kn
Pounds/Inch Immersion: 841.03 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Rig and Sail Particulars

HELP
I: 37.40 ft
J: 11.98 ft
P: 31.82 ft
E: 9.19 ft
S.A. Fore: 224.03 ft²
S.A. Main: 146.21 ft²
S.A. Total (100% Fore + Main Triangles): 370.24 ft²
S.A./Displ. (calc.): 15.83
Est. Forestay Length: 39.27 ft

Sailboat Links

Designers: Bruno Boström
Download Boat Record:

Notes

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