An ultra light displacement boat (or ULDB) is a modern form of
watercraft
Any vehicle used in or on water as well as underwater, including boats, ships, hovercraft and submarines, is a watercraft, also known as a water vessel or waterborne vessel. A watercraft usually has a propulsive capability (whether by sail, ...
with limited
displacement
Displacement may refer to:
Physical sciences
Mathematics and Physics
*Displacement (geometry), is the difference between the final and initial position of a point trajectory (for instance, the center of mass of a moving object). The actual path ...
relative to the
hull
Hull may refer to:
Structures
* Chassis, of an armored fighting vehicle
* Fuselage, of an aircraft
* Hull (botany), the outer covering of seeds
* Hull (watercraft), the body or frame of a ship
* Submarine hull
Mathematics
* Affine hull, in affi ...
size (
waterline length
A vessel's length at the waterline (abbreviated to L.W.L)Note: originally Load Waterline Length is the length of a ship or boat at the level where it sits in the water (the ''waterline''). The LWL will be shorter than the length of the boat over ...
).
ULDBs are competitive, even after 35 years with open ocean racing participation and podium finishes even today. The relative low cost to obtain, tough construction and readily easy modifications make an Olson or a Hobie an extremely competitive and fun boat. The boats do lack comfort, and are not designed for cruising; however, with multiple transpac races, and multiple Bermuda 1-2 entries, they are proving to be a stalwart competitor despite their older design.
See also
*
Bill Lee (yacht designer)
Bill Lee is the designer of noted ocean racing yachts, and one of the founders of the Santa Cruz school of boatbuilding. Known to many as ''the Wizard, Lee's'' designs achieved notoriety in the 1970s, with ''Chutzpah'' and ''Merlin'' having won th ...
*
George Olson (yacht designer)
George may refer to:
People
* George (given name)
* George (surname)
* George (singer), American-Canadian singer George Nozuka, known by the mononym George
* George Washington, First President of the United States
* George W. Bush, 43rd Presiden ...
*
Olson 30
The Olson 30 is a sailboat designed by George Olson of Santa Cruz, CA around 1978. Olson was a surfer and surfboard shaper who decided to design a 30' ultra light displacement boat while on a delivery from Honolulu to Santa Cruz on ''Merlin'', ...
*
Hobie 33
The Hobie 33 is an American trailerable sailboat that was designed by Hobie Alter and Phil Edwards as one-design racer and first built in 1982. It was the first monohull design for Alter and his company, after establishing their reputations ...
*
International Offshore Rule
The International Offshore Rule (IOR) was a measurement rule for racing sailboats. The IOR evolved from the Cruising Club of America (CCA) rule for racer/cruisers and the Royal Ocean Racing Club (RORC) rule.
Rule context - past and present rating ...
*
Ron Moore (boat builder)
Ron Moore is largely credited, along with George Olson and Bill Lee, to
have given rise to the modern ULDB, or ultralight displacement boat.
This yacht type revolutionized sailing as the modern world knows it, especially
in downwind races as are ...
*
Sportsboat
The term sportsboat first appeared in the late 1980s and early 1990s to describe trailer sailers that were optimised for high performance at the expense of accommodation and ballast. The very definition of the term "sportsboat" is evolving.
There ...
References
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