keel

The Sailor's Word-Book

The lowest and principal timber of a ship, running fore and aft its whole length, and supporting the frame like the backbone in quadrupeds; it is usually first laid on the blocks in building, being the base of the superstructure. Accordingly, the stem and stern-posts are, in some measure, a continuation of the keel, and serve to connect the extremities of the sides by transoms, as the keel forms and unites the bottom by timbers. The keel is generally composed of several thick pieces placed lengthways, which, after being scarphed together, are bolted and clinched upon the upper side. In iron vessels the keel is formed of one or more plates of iron, having a concave curve, or limber channel, along its upper surface.


♦ To give the keel, is to careen.

♦ Keel formerly meant a vessel; so many "keels struck the sands." Also, a low flat-bottomed vessel used on the Tyne to carry coals (21 tons 4 cwt.) down from Newcastle for loading the colliers; hence the latter are said to carry so many keels of coals. [Anglo-Saxon ceol, a small bark.]

♦ False keel. A fir keel-piece bolted to the bottom of the keel, to assist stability and make a ship hold a better wind. It is temporary, being pinned by stake-bolts with spear-points; so when a vessel grounds, this frequently, being of fir or Canada elm, floats and comes up alongside.

♦ Rabbets of the keel. The furrow, which is continued up stem and stern-post, into which the garboard and other streaks fay. The butts take into the gripe ahead, or after-deadwood and stern-post abaft.

♦ Rank keel. A very deep keel, one calculated to keep the ship from rolling heavily.

♦ Upon an even keel. The position of a ship when her keel is parallel to the plane of the horizon, so that she is equally deep in the water at both ends.

The Sailor's Word-Book

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