Beta Marine

Sailboat Specifications

Definitions
Hull Type: Fin Keel w/bulb
Rigging Type: Masthead Sloop
LOA: 6.40 m
LWL: 4.72 m
S.A. (reported): 17.19 m²
Beam: 1.93 m
Displacement: 771 kg
Ballast: 227 kg
Max Draft: 0.91 m
Construction: FG
Ballast Type: Iron
First Built: 1959
Last Built: 1970
# Built: 600
Builder: Henry McCune/Wesco Marine/Coronado Yachts
Designer: Ted Carpentier

Sailboat Calculations

Definitions
S.A. / Displ.: 20.83
Bal. / Displ.: 29.41
Disp: / Len: 203.80
Comfort Ratio: 13.10
Capsize Screening Formula: 2.12
S#: 3.13
Hull Speed: 5.28 kn
Pounds/Inch Immersion: 350.58 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Rig and Sail Particulars

HELP
I: 7.44 m
J: 2.23 m
P: 6.32 m
E: 2.96 m
S.A. Fore: 8.27 m²
S.A. Main: 9.35 m²
S.A. Total (100% Fore + Main Triangles): 17.62 m²
S.A./Displ. (calc.): 21.36
Est. Forestay Length: 7.76 m

Sailboat Links

Designers: Ted Carpentier
Builders: Coronado Yachts
Henry R. McCune, Shipbuilders
Related Sailboats: VICTORY 21
Download Boat Record:

Notes

The AURORA 21 has the same hull as the VICTORY 21 but with a larger cabin. Both were first manufactured by Henry R. McCune in 1959. The operation was sold to Wesco Marine (founded by Frank Butler who later founded Catalina Yachts). Wesco began their production in 1964. By 1969 the boats were being built under the name of Coronado Yachts as a division of the Whittaker Corporation.