The US1, sometimes written US 1, is an American
sailing dinghy that was designed by
Ralph Kuppersmith
Ralph (pronounced ; or ,) is a male given name of English, Scottish and Irish origin, derived from the Old English ''Rædwulf'' and Radulf, cognate with the Old Norse ''Raðulfr'' (''rað'' "counsel" and ''ulfr'' "wolf").
The most common forms ...
and
Clark Mills as a
one-design racer and first built in 1973.
[Sherwood, Richard M.: ''A Field Guide to Sailboats of North America, Second Edition'', pages 56-57. ]Houghton Mifflin Company
Houghton Mifflin Harcourt (; HMH) is an American publisher of textbooks, instructional technology materials, assessments, reference works, and fiction and non-fiction for both young readers and adults. The company is based in the Boston Financ ...
, 1994.
The design is most likely a
catboat-rigged derivation of the Mills-designed
Windmill of 1953.
Production
The design was initially built by Kuppersmith's company, the
Advance Sailboat Corporation
Advance commonly refers to:
*Advance, an offensive push in sports, games, thoughts, military combat, or sexual or romantic pursuits
* Advance payment for goods or services
* Advance against royalties, a payment to be offset against future royalty p ...
of
Parkville, Missouri and later of
Independence, Missouri,
United States. That company went out of business in 1980 and the boat design was then built by
Continental Sailcraft
Continental may refer to:
Places
* Continent, the major landmasses of Earth
* Continental, Arizona, a small community in Pima County, Arizona, US
* Continental, Ohio, a small town in Putnam County, US
Arts and entertainment
* ''Continental'' ( ...
. A total of 450 boats were completed, but it is now out of production.
Design
The US1 is a recreational
sailboat, built predominantly of
fiberglass. It has a catboat rig with a loose-footed
mainsail and foam-filled
aluminum spars to reduce the risk of
turtling. The hull features a rounded foredeck, a
plumb stem, a vertical
transom
Transom may refer to:
* Transom (architecture), a bar of wood or stone across the top of a door or window, or the window above such a bar
* Transom (nautical), that part of the stern of a vessel where the two sides of its hull meet
* Operation Tran ...
, a transom-hung, kick-up
rudder controlled by a
tiller and a retractable
centerboard
A centreboard or centerboard (US) is a retractable hull appendage which pivots out of a slot in the hull of a sailboat, known as a ''centreboard trunk'' (UK) or ''centerboard case'' (US). The retractability allows the centreboard to be raised t ...
. It displaces .
The boat has a
draft of with the centerboard extended and with it retracted, allowing
beaching or ground transportation on a
trailer or car roof rack.
For sailing the design is equipped with a dual
Cunningham and an
outhaul.
The class rules allow specific modifications to the boat, including the installation of two bailers, centerboard gaskets, four inspection ports, changes to the
sheeting
A bed sheet is a rectangular piece of cloth used either singly or in a pair as bedding, which is larger in length and width than a mattress, and which is placed immediately above a mattress or bed, but below blankets and other bedding (such as ...
, the
boom vang, the Cunningham,
mainsheet traveler, outhaul, as well as the rudder and tiller and the centerboard control lines.
At one time the class rules allowed the use of a three-piece mast as an alternative to the standard two-piece mast, but this change was repealed.
The design has a
Portsmouth Yardstick racing average handicap of 91.5 and is normally raced with a crew of one or two
sailors, who are limited by the class rules to total weight.
Operational history
In 1994 there were active fleets racing in
Missouri,
Ohio,
Pennsylvania and
Texas.
See also
*
List of sailing boat types
The following is a partial list of sailboat types and sailing classes, including keelboats, dinghies and multihull ( catamarans and trimarans).
Olympic classes
World Sailing Classes
Historically known as the IYRU (International Yacht Racing ...
References
{{Sailing dinghies and skiffs
Dinghies
1970s sailboat type designs
Sailboat type designs by Ralph Kuppersmith
Sailboat type designs by Clark Mills
Sailboat types built by Advance Sailboat Corporation
Sailboat types built by Continental Sailcraft