Beta Marine

Beta Marine

Sailboat Specifications

Hull Type: Fin w/transom hung rudder
Rigging Type: Fractional Sloop
LOA: 20.00 ft / 6.10 m
LWL: 17.50 ft / 5.33 m
S.A. (reported): 178.00 ft² / 16.54 m²
Beam: 7.00 ft / 2.13 m
Displacement: 950.00 lb / 431 kg
Ballast: 140.00 lb / 64 kg
Max Draft: 2.75 ft / 0.84 m
Construction: FG
Ballast Type: Iron
First Built: 1965
Builder: Hinterholler Ltd./Clarkcraft /Skene Boats Ltd. (CAN)
Designer: George Hinterhoeller

KLSC Leaderboard

KLSC Leaderboard

Sailboat Calculations

S.A. / Displ.: 29.52
Bal. / Displ.: 14.74
Disp: / Len: 79.13
Comfort Ratio: 6.02
Capsize Screening Formula: 2.85
S#: 6.71
Hull Speed: 5.61 kn
Pounds/Inch Immersion: 437.71 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Rig and Sail Particulars

I: 18.75 ft / 5.72 m
J: 6.33 ft / 1.93 m
P: 23.00 ft / 7.01 m
E: 10.33 ft / 3.15 m
S.A. Fore: 59.34 ft² / 5.51 m²
S.A. Main: 118.80 ft² / 11.04 m²
S.A. Total (100% Fore + Main Triangles): 178.14 ft² / 16.55 m²
S.A./Displ. (calc.): 29.55
Est. Forestay Length: 19.79 ft / 6.03 m

Sailboat Links

Designers: George Hinterhoeller
Builders: Hinterhoeller Yachts Ltd.
Skene Boats Ltd. (CAN)
Related Sailboats: CYGNUS 20
Download Boat Record:


A detachable coach roof/cuddy creates sitting headroom for four for camping.

This from CYGNUS owner 'barklakemike':
"George Hinterhoeller in Niagara actually designed and built the first the HR 20 as he called it, in 1963.... A class association formed in 1965 or 66 and the boat was renamed the Cygnus class. [Another early builder of the CYGNUS was Clarkecraft of St Catharines, Ontario]
The tooling was sold to Skene in Ottawa, (who also made Albacores); when Hinterhoeller became one of three boatbuilders (including Morch in Belleville and Bruckmann in Oakville) who combined forces to make up the manufacturing side of the new C and C yachts. ...the Cygnus was available with either a fixed cast iron keel and 2 ft 9 in draft, or with a fully retracting steel centerboard, when it weighed only 600 lbs."

Photo courtesy Adam Hunt.