Beta Marine

Beta Marine

Sailboat Specifications

Hull Type: Fin with rudder on skeg
Rigging Type: Masthead Sloop
LOA: 9.16 m
LWL: 7.01 m
S.A. (reported): 39.95 m²
Beam: 2.74 m
Displacement: 3,946 kg
Ballast: 1,873 kg
Max Draft: 1.52 m
Construction: FG
Ballast Type: Lead
First Built: 1970
Last Built: 1975
# Built: 130
Builder: Yankee Yachts Inc. (USA)
Designer: Sparkman & Stephens

KLSC Leaderboard

KLSC Leaderboard

Auxiliary Power/Tanks (orig. equip.)

Make: Universal
Model: Atomic 4
Type: Gas
HP: 30


Water: 83 L

Sailboat Calculations

S.A. / Displ.: 16.32
Bal. / Displ.: 47.47
Disp: / Len: 319.22
Comfort Ratio: 28.68
Capsize Screening Formula: 1.75
S#: 1.56
Hull Speed: 6.43 kn
Pounds/Inch Immersion: 739.63 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Rig and Sail Particulars

I: 12.19 m
J: 3.89 m
P: 10.64 m
E: 3.05 m
S.A. Fore: 23.69 m²
S.A. Main: 16.22 m²
S.A. Total (100% Fore + Main Triangles): 39.91 m²
S.A./Displ. (calc.): 16.30
Est. Forestay Length: 12.80 m

Sailboat Links

Designers: Sparkman & Stephens
Builders: Yankee Yachts Inc. (USA)
Related Sailboats: YANKEE 30 MKIII (3/4 TON)
Download Boat Record:


S&S design #1999.
After Yankee Yachts went out of business in 1975, a few boats were built by Heritage Boat Works (OR) and Vashon Island Boat Works (WA),USA.
From this latter builder also came the VASHON ISLAND 30 or VASHON 30, a Pilot House cruiser that appears to share the same hull.

The MK I, II, and III, were differentiated primarily by incrementally taller rigs as well as a few details in the interior layout.
(Hulls after #98 are designated MK II).
The MK III, has an additional 1000 lbs. of internal ballast. (Rig dimension as well as other details are not always consistent within a particular version.)

Available engines:
Universal Atomic 4 (gas)
Albin 2-cyl Diesel
Bukh 2-cyl Diesel

The S&S 30, built by Swarbrick Brothers of Australia is based on the same design (S&S No. 1999-C1).