GRAMPIAN 46

Sailboat Specifications

both US imperial metric

Hull Type:

Keel/Cbrd.

Rigging Type:

Masthead Yawl

LOA:

46.00 ft / 14.02 m

LWL:

33.00 ft / 10.06 m

Beam:

12.00 ft / 3.66 m

S.A. (reported):

881.00 ft² / 81.85 m²

Draft (max):

10.33 ft / 3.15 m

Draft (min):

5.16 ft / 1.57 m

Displacement:

25,000 lb / 11,340 kg

Ballast:

9,000 lb / 4,082 kg

S.A./Disp.:

16.55

Bal./Disp.:

36.00

Disp./Len.:

310.56

Construction:

FG

Ballast Type:

Lead

First Built:

1969

Last Built:

1976

# Built:

12

Builder:

Grampian Marine

Designer:

William H. Tripp Jr.

Sailboat Calculations

Definitions

S.A./Disp.:

16.55

Bal./Disp.:

36.00

Disp./Len.:

310.56

Comfort Ratio:

38.26

Capsize Screening Formula:

1.64

S#:

1.44

Rig and Sail Particulars

help

I:

47.62 ft / 14.51 m

J:

16.67 ft / 5.08 m

P:

41.00 ft / 12.50 m

E:

17.00 ft / 5.18 m

PY:

26.50 ft / 8.08 m

EY:

10.25 ft / 3.12 m

S.A. Fore:

396.91 ft² / 36.87 m²

S.A. Main:

348.50 ft² / 32.38 m²

S.A. Total (100% Fore + Main Triangles)

745.41 ft² / 69.25 m²

S.A./Disp. (calc.):

14.01

Est. Forestay Len.:

50.45 ft / 15.38 m

Sailboat Links

Designers:

William H. Tripp Jr.

Builders:

Grampian Marine

Associations:

Grampian Owners Marina

Download Boat Record:

PDF

Notes

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.

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