Beta Marine

Sailboat Specifications

Hull Type: Long Keel
Rigging Type: Masthead Ketch
LOA: 35.24 ft / 10.74 m
LWL: 28.21 ft / 8.60 m
S.A. (reported): 577.00 ft² / 53.61 m²
Beam: 10.50 ft / 3.20 m
Displacement: 16,535.00 lb / 7,500 kg
Ballast: 6,173.00 lb / 2,800 kg
Max Draft: 4.82 ft / 1.47 m
Construction: FG
First Built: 1972
Last Built: 1979
# Built: 60
Builder: Anne Wever Shipyard
Designer: E.G. van de Stadt

Auxiliary Power/Tanks (orig. equip.)

Make: Perkins
Model: 4-108
Type: Diesel

Sailboat Calculations

S.A. / Displ.: 14.28
Bal. / Displ.: 37.33
Disp: / Len: 328.81
Comfort Ratio: 36.78
Capsize Screening Formula: 1.65
Hull Speed: 7.12 kn
Pounds/Inch Immersion: 1,058.37 pounds/inch

calculation mobile

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Sailboat Links


In the UK, a number of yachts to this design (molded by Tyler Boat Co.) were finished by Frank Halls & Son. Another version, finished by Offshore Yachts (UK) was sold as the OFFSHORE T35. Besides the TRINTELLA IIIA, it is thought that at least 100 more were built.
See Mike Davies book,'Essex and Suffolk Boatyards & Boat Builders.
Thanks also to the Trintella Friends Association for assistance.