OFFSHORE 31 (CHEOY LEE)

OFFSHORE 31 (CHEOY LEE)
OFFSHORE 31 (CHEOY LEE)

Beta Marine

Beta Marine

Sailboat Specifications

Definitions
Hull Type: Long Keel
Rigging Type: Masthead Sloop
LOA: 31.00 ft
LWL: 23.33 ft
S.A. (reported): 403.00 ft²
Beam: 8.75 ft
Displacement: 10,700.00 lb
Ballast: 3,800.00 lb
Max Draft: 3.67 ft
Construction: FG
Ballast Type: Iron
First Built: 1968
# Built: 150
Builder: Cheoy Lee Shipyard Ltd.(HK)
Designer: Herreshoff/Cheoy Lee Shipyard

KLSC Leaderboard

KLSC Leaderboard

Sailboat Calculations

Definitions
S.A. / Displ.: 13.32
Bal. / Displ.: 35.51
Disp: / Len: 376.18
Comfort Ratio: 35.88
Capsize Screening Formula: 1.59
S#: 1.03
Hull Speed: 6.47 kn
Pounds/Inch Immersion: 729.41 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Rig and Sail Particulars

HELP
I: 33.00 ft
J: 12.16 ft
P: 30.00 ft
E: 13.50 ft
S.A. Fore: 200.64 ft²
S.A. Main: 202.50 ft²
S.A. Total (100% Fore + Main Triangles): 403.14 ft²
S.A./Displ. (calc.): 13.33
Est. Forestay Length: 35.17 ft

Sailboat Links

Designers: L. Francis Herreshoff
Builders: Cheoy Lee Shipyard
Associations: Cheoy Lee Association Web Site
Download Boat Record:

Notes

It is thought that the OFFSHORE 31 is based on the BERMUDA 30 (in turn based on the HERRESOFF 28) with an extended counter and inboard rudder. Available as a sloop, sloop w/bowsprit or ketch.

Dimensions for ketch rig:
I: 31.50'/9.60m
J: 9.50'/2.90m
P: 27.50'/8.38m
E: 13.08'/ 3.99m
PY: 18.00'/5.49m
EY: 8.75'/2.67m
Tot. SA: 408.23 ft2/37.92m2

Dimensions for sloop w/bowsprit:
I: 33.00'/10.06m
J: 14.40'/4.39m
P: 30.00'/9.14m
E: 13.50'/4.11m
Tot. SA: 440.10 ft2/40.89m2
Dimensions (not rig) from orig. brochure. Dimensions and especially displacement reported by others vary.