SEAWANHAKA ONE-DESIGN

Main

Appendages
Fin Keel
Construction
Wood
First built hull
1939
Hull type
Monohull
Model
SEAWANHAKA ONE-DESIGN (S&S)
Sailboat builder
Henry B. Nevins
Sailboat designer
Sparkman & Stephens

Dimensions

Ballast Type
Lead
Ballast weight
1293.0
Beam
2.01
Displacement
3175.0
Draft
1.37
Max Draft
1.37
Overall length
9.45
Waterline length
6.4

Sails

E
4.42
Est. Forestay Length
9.01
Fore area
12.36
I
8.53
J
2.9
Mainsail area
22.77
P
10.3
Total area
33.17

Engine

Performance

Ballast ratio
40.71
Capsize Screening Formula
1.38
Comfort Ratio
36.62
Critical hull speed
6.14
Displacement-length ratio (DLR)
337.44
Upwind sail area to displacement
15.66

Accomodation

The Seawanhaka One-Design (S&S) sailing boat is a classic racing yacht that was designed by Sparkman & Stephens (S&S) in 1913. It was commissioned by the Seawanhaka Corinthian Yacht Club, located in Oyster Bay, New York, and was intended to be a strict one-design racing class.

The Seawanhaka One-Design is a 25-foot keelboat with a gaff-rigged sloop sail plan. It features a long overhang bow, a graceful sheerline, and a relatively narrow beam, giving it a sleek and elegant appearance. The boat's construction is primarily wooden, with a planked hull and a lead keel for stability.

Originally, the Seawanhaka One-Design was built using traditional boatbuilding methods, but over the years, some boats have been constructed using modern materials such as fiberglass. However, the class rules ensure that the boats remain true to the original design, maintaining their classic aesthetic and performance characteristics.

The Seawanhaka One-Design class has a rich racing history, with competitive fleets still actively racing today. The boats are known for their excellent upwind performance and their ability to handle a wide range of wind conditions. They require a skilled crew to sail effectively, as they are sensitive to weight distribution and sail trim.

The Seawanhaka One-Design class has a strong community of owners and enthusiasts who are dedicated to preserving the boat's heritage and promoting competitive racing. The class holds regular regattas and championships, providing opportunities for sailors to showcase their skills and enjoy the camaraderie of fellow enthusiasts.

Overall, the Seawanhaka One-Design (S&S) sailing boat is a timeless classic that combines elegant design with thrilling racing performance. It continues to be cherished by sailors who appreciate its historical significance and the joy of sailing a true classic yacht.

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