Beta Marine

Beta Marine

Sailboat Specifications

Definitions
Hull Type: Fin w/spade rudder
Rigging Type: Masthead Sloop
LOA: 24.00 ft / 7.32 m
LWL: 17.25 ft / 5.26 m
S.A. (reported): 214.00 ft² / 19.88 m²
Beam: 6.25 ft / 1.91 m
Displacement: 2,250.00 lb / 1,021 kg
Ballast: 1,120.00 lb / 508 kg
Max Draft: 3.50 ft / 1.07 m
Construction: FG
Ballast Type: Iron.
First Built: 1962
Last Built: 1977
# Built: 500
Builder: Tidewater Boats (USA)
Designer: Sparkman & Stephens

Sailboat Calculations

Definitions
S.A. / Displ.: 19.99
Bal. / Displ.: 49.78
Disp: / Len: 195.69
Comfort Ratio: 15.69
Capsize Screening Formula: 1.91
S#: 3.10
Hull Speed: 5.57 kn
Pounds/Inch Immersion: 385.23 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Rig and Sail Particulars

HELP
I: 24.00 ft / 7.32 m
J: 8.80 ft / 2.68 m
P: 21.70 ft / 6.61 m
E: 10.00 ft / 3.05 m
S.A. Fore: 105.60 ft² / 9.81 m²
S.A. Main: 108.50 ft² / 10.08 m²
S.A. Total (100% Fore + Main Triangles): 214.10 ft² / 19.89 m²
S.A./Displ. (calc.): 20.00
Est. Forestay Length: 25.56 ft / 7.79 m

Sailboat Links

Designers: Sparkman & Stephens
Builders: Tidewater Boats (USA)
Related Sailboats: WEEKENDER 24
Download Boat Record:

Notes

S&S design #1701. Originally designed in 1961 for the Annapolis Sailing School. A version with extended coach roof was called the RAINBOW WEEKENDER. Another version without any cuddy or cabin was built for the U. S. Naval Academy and called the KNOCKABOUT. Including all variants, it is thought that around 500 hulls were built.
(The first few boats were found to be somewhat tender and ballast was increased to 1120 lbs.)
(A small cruiser, the ANNAPOLIS 25 uses the RAINBOW hull with an entirely different different deck and coach roof. A small but unknown number of these were built.)