Beta Marine

Beta Marine

Sailboat Specifications

Hull Type: Keel/Cbrd.
Rigging Type: Masthead Yawl
LOA: 46.00 ft
LWL: 33.00 ft
S.A. (reported): 881.00 ft²
Beam: 12.00 ft
Displacement: 25,000.00 lb
Ballast: 9,000.00 lb
Max Draft: 10.33 ft
Min Draft: 5.16 ft
Construction: FG
Ballast Type: Lead
First Built: 1969
Last Built: 1976
# Built: 12
Builder: Grampian Marine
Designer: William H. Tripp Jr.

KLSC Leaderboard

KLSC Leaderboard

Sailboat Calculations

S.A. / Displ.: 16.55
Bal. / Displ.: 36.00
Disp: / Len: 310.56
Comfort Ratio: 38.26
Capsize Screening Formula: 1.64
S#: 1.44
Hull Speed: 7.70 kn
Pounds/Inch Immersion: 1,414.95 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Rig and Sail Particulars

I: 47.62 ft
J: 16.67 ft
P: 41.00 ft
E: 17.00 ft
PY: 26.50 ft
EY: 10.25 ft
S.A. Fore: 396.91 ft²
S.A. Main: 348.50 ft²
S.A. Total (100% Fore + Main Triangles): 745.41 ft²
S.A./Displ. (calc.): 14.00
Est. Forestay Length: 50.45 ft

Sailboat Links

Designers: William H. Tripp Jr.
Builders: Grampian Marine
Associations: Grampian Owners Marina
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With the exception of the unique feature of tandem centerboards,(offered as an option) the GRAMPIAN 46 seems to be nearly the same design as the US 46.
Both of these yachts are probably from the same tooling used to build the earlier US 41.