Beta Marine

Beta Marine

Sailboat Specifications

Definitions
Hull Type: Modified Full Keel
Rigging Type: Masthead Sloop
LOA: 31.17 ft / 9.50 m
LWL: 24.44 ft / 7.45 m
S.A. (reported): 416.00 ft² / 38.65 m²
Beam: 9.19 ft / 2.80 m
Displacement: 10,582.00 lb / 4,800 kg
Ballast: 4,409.00 lb / 2,000 kg
Max Draft: 4.69 ft / 1.43 m
Construction: FG
Ballast Type: Lead
First Built: 1964
Last Built: 1968
# Built: 50
Builder: Tyler Boat Co. Ltd. (UK)
Designer: E. G. van de Stadt

Sailboat Calculations

Definitions
S.A. / Displ.: 13.86
Bal. / Displ.: 41.67
Disp: / Len: 323.61
Comfort Ratio: 32.20
Capsize Screening Formula: 1.68
S#: 1.34
Hull Speed: 6.62 kn
Pounds/Inch Immersion: 802.53 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Rig and Sail Particulars

HELP
I: 38.38 ft / 11.70 m
J: 12.30 ft / 3.75 m
P: 32.32 ft / 9.85 m
E: 11.15 ft / 3.40 m
S.A. Fore: 236.04 ft² / 21.93 m²
S.A. Main: 180.18 ft² / 16.74 m²
S.A. Total (100% Fore + Main Triangles): 416.22 ft² / 38.67 m²
S.A./Displ. (calc.): 13.86
Est. Forestay Length: 40.30 ft / 12.28 m

Sailboat Links

Notes

(VDS design #140)
The first 64 HARMONY 31 hulls were molded by Tyler Boat Co. and completed by Southern Ocean Shipyards at Poole (UK). They were the predecessors to the fin and skeg TRINTELLA II, TRINTELLA IIA, SEACRACKER 33, and TUFGLAS 33. The latter two were also built by Tyler.
The HARMONY 31 was also finished and sold by Malo Yachts of Sweden (20 units between 1964-1968).