Beta Marine

Beta Marine

Sailboat Specifications

Hull Type: Keel/Cbrd.
Rigging Type: Masthead Sloop
LOA: 27.00 ft
LWL: 21.42 ft
S.A. (reported): 376.00 ft²
Beam: 8.62 ft
Displacement: 7,400.00 lb
Ballast: 2,400.00 lb
Max Draft: 6.33 ft
Min Draft: 3.17 ft
Construction: FG
Ballast Type: Lead
First Built: 1961
Last Built: 1980
# Built: 712
Builder: Tartan Marine (USA)
Designer: Sparkman & Stephens

KLSC Leaderboard

KLSC Leaderboard

Auxiliary Power/Tanks (orig. equip.)

Make: Universal
Model: Atomic 4
Type: Gas
Fuel: 20 gals


Water: 30 gals

Sailboat Calculations

S.A. / Displ.: 15.89
Bal. / Displ.: 32.43
Disp: / Len: 336.14
Comfort Ratio: 28.09
Capsize Screening Formula: 1.77
S#: 1.42
Hull Speed: 6.20 kn
Pounds/Inch Immersion: 659.74 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Rig and Sail Particulars

I: 34.65 ft
J: 9.83 ft
P: 30.50 ft
E: 13.50 ft
S.A. Fore: 170.30 ft²
S.A. Main: 205.88 ft²
S.A. Total (100% Fore + Main Triangles): 376.18 ft²
S.A./Displ. (calc.): 15.90
Est. Forestay Length: 36.02 ft
Mast Height from DWL: 38.00 ft

Sailboat Links

Designers: Sparkman & Stephens
Builders: Douglass & McLeod
Schock W.D.
Tartan Marine
Related Sailboats: TARTAN 27-2
Download Boat Record:


S&S design #1617.
The TARTAN 27 was the first boat built by Tartan Marine and was produced continuously for 19 years. An updated version was introduced in 1979. of which 64 were produced,(referred to as TARTAN 27-2) Most noticeably this boat has more freeboard and a retooled deck and coach roof.
An original brochure from Douglass & McLeod reports displacement as 6,875 lbs.
In 1967 the ballast was changed from external to internal and increased by 400 lbs.
Was available with a yawl rig.
A few TARTAN 27'S were built by W.D. Schock on the west coast USA.