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BOSTROM 31

Masthead Sloop • Fin with rudder on skeg • Built 1973

Dimensions

LOA
30.64 ft
LWL
25.98 ft
Beam
9.06 ft
Max Draft
5.91 ft
Displacement
7,782 lbs
Ballast
3,748 lbs

Performance Ratios

Capsize Ratio ⓘ
1.83 (offshore safe)
SA/D Ratio ⓘ
15.1
D/L Ratio ⓘ
198
Ballast Ratio ⓘ
48.2%

Sail Plan

Sail Area
370 sq ft
I
37.4 ft
J
11.98 ft
P
31.82 ft
E
9.19 ft

Construction

Hull Type
Fin with rudder on skeg
Rig Type
Masthead Sloop
Hull Material
FG
Ballast Type
—

Production

First Built
1973
Last Built
—
Number Built
—

Engine & Accommodations

Engine Make
Yanmar
Notes:

Also known as B-31, STAR BOAT 31.

Designer

Related Boats

Name LOA (ft) Year Rig
BOSTROM 31 MKII 30.61 1977 Masthead Sloop