The Sailor's Word-Book / An Alphabetical Digest of Nautical Terms, including Some More Especially Military and Scientific, but Useful to Seamen; as well as Archaisms of Early Voyagers, etc.

by W. H. Smyth

FLANCHING. The bellying out; synonymous with flaring.

FLANGE. In steamers, is the projecting rim at the end of two iron pipes for uniting them. (See [Port-flange].)

FLANK, To. To defend that part; incorrectly used sometimes for firing upon a flank.

FLANK of an Army. The right or left side or end, as distinguished from the front and rear—a vulnerable point. Also, the force composing or covering that side. In fortification, a work constructed to afford flank defence.

FLANK-COMPANIES. The extreme right and left companies of a battalion, formerly called the grenadiers and light infantry, and wearing distinctive marks in their dress; now the title, dress, and duties of all the companies of a battalion are the same.

FLANK-DEFENCE. A line of fire parallel, or nearly so, to the front of another work or position.

FLANKED ANGLE. In fortification, a salient angle formed by two lines of flank defence.

FLAP. The cover of a cartridge-box or scupper.

FLAPPING. The agitation of a sail with sheet or tack carried away, or the sudden jerk of the sails in light winds and a heavy swell on.

FLARE. In ship-building, is flanching outwards, as at the bows of American ships, to throw off the bow-seas; it is in opposition to tumbling home and wall-sided.