NAUTICAL  DICTIONARY.                             [HAM

sailing before the wind. The sail may gybe by the efibrt of the
wind shifting suddenly, by bad steering, &c.: as this would run a
great risk of breaking the boom and doing other damage, it
should be carefully provided against by using a guy. This guy
gets the name of a luzy guy,   % i^^         i ^                                    ^    .

HAIL. To call out to another vessel, or to men in a different
part of the ship. A ship also is said to hail from the port where
she is registered.

HALF-BEAMS. Short beams introduced to support the deck
where there is no framing.    See Beams, 4.

HALF-BREADTH PLANS, or FLOOR-PLANS, in Ship¬
building, are sections upon a longitudinal plane, whereon are
represented the water-lines and the ribband-lines.

HALF-DECK. That portion of the ,sole continued forward
from the cabin bulkhead, or aft from the forecastle.    See Deck,

HALF-TIDE ROCK. A rock seen above water at half
ebb.           7'^ -                                                                              //"

HALF-WATCH TACKLE. A lufl'-tackle purchase with a
hook in the end of the single block and a tail to the upper end of
the double block.    See Tackle,

HALYARDS, or HALLIARDS. Ropes or tackles used for
hoisting and lowering yards and gaffs. The halyards for hoisting
and lowering any upper yard, respectively termed the topsail
halyards, topgallant halyards, and royal halyards (main, fore, and
mizen), are rove through the fly block at the extremity of the
tye, and through a block hooked to an eyebolt inside of a stan¬
chion abreast of the backstays, or through a block attached to
the backstay-stool. The halyards attached to the outer end (or
peak) of a gafi^, are called peak halyards: those attached to the
inner end, throat halyards. See Jeers, (Plates IIL IV.
and V.)

HAMBRO' LINE, or HAMBERLINE. Small line used for
any occasional purpose, such as seizings or lashings on board of a
ship. The topmast rigging of some small vessels is rattled down
with it.

HAMMOCK (Fr, Hamac, Branle). A piece of canvass slung
from both ends, for a seaman to sleep in. The cords by which it
is slung are called knittles or nettles, forming the head-clue and
foot-clue of the hammock.

HAMMOCK-BATTENS.    See Hammock-Racks,

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