Centerboard

Also found in: Dictionary, Thesaurus, Wikipedia.

centerboard

[′sen·tər‚bȯrd]

(naval architecture)

A metal or wooden slab in a casing along the centerline of a sailboat which may be lowered to increase the boat's resistance to lateral motion, and raised when the boat is in shallow water or is beached.

The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Centerboard

a retractable keel made of metal sheet or, less often, wood, used on small sailing vessels, such as yachts; its primary function is to increase resistance to leeway. The center-board can be retracted into a watertight slot for sailing in shallow waters.

Mentioned in ?

References in periodicals archive ?

In fact, it was bombed conventionally no fewer than four times before the Fat Man was dropped, including a little more than a week before Operation Centerboard II began.

Nagasaki: Last Bomb

"I created a platform in front of the centerboard slot to keep the dog more comfortable and out of any water that enters the boat," Marek said.

A sailboat's second life: an old sloop gets another chance on Alaska's divers

He learned about lightweight balsa-wood rafts steered by guaras, various adjustable centerboards. One such raft, loaded with trade goods, was captured in 1526 by the first explorers to sail the Peruvian coast.

RAFTING FEVER

Glue (epoxy and silica) and clamp all the centerboard trunk pieces together (K, EE, KY, NN).

Sailing skiff; part three, the finale: building the centerboard, rudder and mast, and covering the boat with fiberglass

It's about making lists and buying charts and agonizing over who makes the fastest spinnaker and, yes, even putting that unnecessary coat of varnish on the centerboard cap ...

A life examined: whether it's a big race or a relaxed week of cruising, engaging in pre-sail rituals is an important part of the journey. Chris Caswell explains Zen and the art of boat preparation

In the lower hull, the bottom of the mast step, centerboard trunk and cockpit bailer were ground down until they were flush with the hull.

Doubling up: two old sailboats become one new duck boat

Some sailboats have permanent keels; many smaller designs have a centerboard that is pushed down through a narrow, open-ended trunk fastened in the center of the hull.

Power options for Puddle Duck: on the open water with wind, motor, or muscle

Cut out the centerboard slot in the bottom panel (B).

Sailing skiff

Since the 0.0007" copper thickness is significant with respect to the 0.006" centerboard thickness, an important feature of the program is that the effect of stripline trace thickness is included in the calculations.

Ten to 50 GHz ultra-flat response directional couplers

The Seawind 950 comes standard as a cruising model with fixed mini-keels, but there is also an optional racing model with a lowering centerboard for higher pointing performance.

On sail at the Cove: this year's Sanctuary Cove International Boat Show will celebrate Australia's boating industry with exhibitors showcasing the latest Yachting products

Sailing dinghies are tippy because they have only a short centerboard to provide lateral stability in the water.

SET SAIL, EUGENE!

The tree number and bolt number (vertical position in the tree) were marked on the 1-inch-thick centerboard that included the pith.

Evaluating the bending properties of clear wood specimens produced from small-diameter ponderosa pine trees