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THUNDERBIRD
Thunderbird OD drawing on sailboatdata.com

Hull Type:  Fin w/spade rudder Rig Type:  Fractional Sloop
LOA:  25.98' / 7.92m LWL:  20.25' / 6.17m
Beam:  7.54' / 2.30m Listed SA:  309 ft2 / 28.71 m2
Draft (max.)  4.79' / 1.46m Draft (min.)  
Disp.  3650 lbs./ 1656 kgs. Ballast:  1530 lbs. / 694 kgs.
SA/Disp.:  20.91 Bal./Disp.:  41.91% Disp./Len.:  196.23
Designer:  Ben Seaborn
Builder:  
Construct.:  Plywood/FG Bal. type:  
First Built:  1958 Last Built:   # Built:  
RIG DIMENSIONS  KEY
I:  26.75' / 8.15m J:  8.00' / 2.44m
P:  31.00' / 9.45m E:  13.00' / 3.96m
PY:   EY:  
SPL:   ISP:  
SA(Fore.):  107.00 ft2 / 9.94 m2 SA(Main):  201.50 ft2 / 18.72 m2
Total(calc.)SA:   308.50 ft2 / 28.66 m2 DL ratio:  196.23
SA/Disp:  20.88 Est. Forestay Len.:  27.92' / 8.51m
DESIGNER
More about & boats designed by:   Ben Seaborn
RELATED LINKS
Thunderbird Class Association   thunderbirdsailing.org
NOTES
Some THUNDERBIRDS have been built of molded FG with aluminum spars. A "cruising deck" design was introduced. Most have been built from plans now supplied by the class association. See the class web site for details.
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