* 1949 – The keel for the aircraft carrier is laid down at Newport News Drydock and Shipbuilding.

This stability is provided in multihulls by the weight of the boat itself, in contrast to monohull sailcraft which typically use an underwater counterweight, a ballasted keel for this purpose, especially on larger sailboats.

The forces on the sails as well as those from below the water line on the keel, centerboard, and other underwater foils including the hull itself ( especially for catamarans or in a traditional proa ) combine and partially cancel each other to produce the motive force for the vessel.

The classic ' long keel ' yacht, where the keel is integrated into the lower portion of the hull and extends for all or most of the hull's length, rather than being a single fin attached to the hull at the centre, is still being built in small numbers.

** The keel is laid for the U. S. nuclear submarine USS Nautilus.

* Horn timber, a slanted timber extension of the keel for mounting a counter transom.

Huckins also granted permission for Elco, Higgins and the Philadelphia Navy Yard to use their patented laminated keel, which increased hull strength.

Participants are restricted to a measurement formula for the boats, and the rules concerning the same have been controversial ever since Australia II took the cup away from the U. S. with a secret winged keel.

The Kakapo cannot fly, having short wings for its size and lacking the pronounced keel bone ( sternum ) that anchors the flight muscles of other birds.

The keel is made of beech, but the rest of the ship is made of oak, although no reason for this has yet been suggested.

A shipyard was constructed and the keel for the Sultana was laid in October 1998.

The Creek was wide enough for settlers to use to build, dock and outfit numerous flat boats, keel boats, and other river craft.

A typical sailing rig for a dinghy is a gunter with a two-piece folding mast stepped through a thwart and resting on the keel.

Unlike other flightless birds, the ratites have no keel on their sternum — hence the name from the Latin ratis ( for raft ).

In 1799 the keel of USS Chesapeake, one of the first six frigates authorized by Congress, was laid, making her the first ship built in Gosport for the U. S. Navy.

Galleons were constructed from oak ( for the keel ), pine ( for the masts ) and various hardwoods for hull and decking.

Not needing a keel catamarans are more suitable for DIY construction.

Inboard keel hung rudders ( which are a continuation of the aft trailing edge of the full keel ) are traditionally deemed the most damage resistant rudders for off shore sailing.

Dragon boaters in Portland OR USA first used Taiwanese dragon boats fitted with sweep oars for steering that were mounted over the centre line or keel line of the boat, rather than of to the side and off centre.

The center beam acts as the keel with another beam attached on each side of it acting like a pair of sponsons for stability, preventing the center beam from otherwise rolling.

The keel length of koch was about 10 – 25 meters ( about 30 – 70 feet ).

Her keel was laid on 30 July 2004, christened 11 February 2006, and commissioned in Miami on 10 February 2007

The sexual organs, enclosed by the keel, comprise 10 stamens, of which 9 are joined and 1 is free, and an ovary topped by a style upon which is located the stigma which receives pollen during fertilisation.

In Australia, the best known and most popular pocket cruiser is the locally produced Savage Nautilus, a shoal draft yacht of 19 ft 4 in length overall with a 7 ft 10 in beam and a full length keel that draws only 2 ft 9 in.

The early 4 ' 4 " shoal keel has been replaced by the modern 3 ' 10 " deep wing keel.

Remains of a 10 meters long ship from the 1st century BC, were found in Zaton near Nin ( Aenona in Classical Liburnia ), a ship keel with bottom planking made of 6 rows of the wooden boards on each side, specifically joined together, sewn with resin cords and wooden wedges, testifying the Liburnian shipbuilding tradition style, therefore named " Serilia Liburnica ".

She was over 500 tons burthen with a keel of over 32 m ( 106 ft ) and a crew that consisted of 200 sailors, 185 soldiers, and 30 gunners.

The Catalina 30 was the largest and longest continuous production keel boat in the world, with over 6, 500 hulls produced.

He looked as if he was going to keel over.

The economy seems to be sailing along on an even keel and the 1961 hurricane season and auto strikes are at an end so they can't be blamed in November.

A 50-inch width is used on each side and it laps the keel line by about three inches.

When the whole bottom has hardened, use a disk sander to feather the edges of the cloth at the keel line and near the spray rail.

Then lay a three-inch-wide strip of cloth along the keel line from the transom to the point of the stem.

Before the resin has hardened, screw a one-inch mahogany keel strip along the centerline.

The keel is a strong median ridge running down the length of the sternum.

Thus, all flying birds have a pronounced keel.

Ratites, all of whom are flightless, lack a strong keel.

Estonian ( eesti keel ; ) is the official language of Estonia, spoken natively by about 1. 1 million people in Estonia and tens of thousands in various migrant communities.

A " skeg " ( an upright, streamlined, often raked keel ) typically denotes one centrally-mounted stabilizer foil mounted perpendicularly to the riding surface, at the rear of the surfboard.

Often but not always there is a centerline longitudinal member called a keel.

Hydrofoils can be artificial, such as the rudder or keel on a boat, the diving planes on a submarine, a surfboard fin, or occur naturally, as with fish fins, the flippers of aquatic mammals, the wings of swimming seabirds, or other creatures like the sand dollar.

The keel was a flattened plank about twice as thick as a normal strake plank, but not considered strong enough to withstand the downwards thrust of a mast.

The ship had a light keel plank but pronounced stem and stern deadwood.

The raised prow extended about 3. 7m above the keel and the hull was estimated to draw 750mm when lightly laden.

There is no evidence of a mast, sail or strengthening of the keel amidships but a half sized replica, the Soe Wylfing, sailed very well with a modest sail area.

It is the first with a true keel.

The shipbuilder pictured the longship before its construction, based on previous builds, and the ship was then built from the keel up.

The keel and stems were made first.

The keel was an inverted T shape to accept the garboard planks.

In the longships the keel was made up of several sections spliced together and fastened with treenails.