Beta Marine

Beta Marine

Sailboat Specifications

Hull Type: Swing Keel
Rigging Type: Masthead Sloop
LOA: 22.00 ft
LWL: 19.00 ft
S.A. (reported): 202.00 ft²
Beam: 8.00 ft
Displacement: 2,200.00 lb
Ballast: 700.00 lb
Max Draft: 4.50 ft
Min Draft: 1.16 ft
Construction: FG
First Built: 1971
Builder: Helsen Yachts (USA)
Designer: Johannes Helsen

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Sailboat Calculations

S.A. / Displ.: 19.15
Bal. / Displ.: 31.82
Disp: / Len: 143.19
Comfort Ratio: 10.70
Capsize Screening Formula: 2.46
S#: 3.78
Hull Speed: 5.84 kn
Pounds/Inch Immersion: 543.11 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Rig and Sail Particulars

I: 24.00 ft
J: 9.50 ft
P: 20.00 ft
E: 8.80 ft
S.A. Fore: 114.00 ft²
S.A. Main: 88.00 ft²
S.A. Total (100% Fore + Main Triangles): 202.00 ft²
S.A./Displ. (calc.): 19.15
Est. Forestay Length: 25.81 ft

Sailboat Links

Designers: Johannes "Jopie" Helsen
Builders: Universal Marine Corp. (USA)
Related Sailboats: WATKINS 23 XL
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A later adaptation of this design became the WATKINS 23.
Thanks for 'PAR' for providing updated information.
Another boat that appears to come from this same tooling is the APOLLO 21.(specifics unknown).