F: a rope used to confine the foremost lower corners of the
courses and
stay sails
in a fixed position, when the wind crosses the ship's course obliquely. The same name is also
given to the rope employed to pull out the lower corner of a
studding sail or
driver to the extremity of its
boom. The
mainsail and
foresail of a ship are furnished with a tack on each side, which is formed
of a thick rope tapering to the end, and having a knot wrought upon the largest end, by which
it is firmly retained in the
clue of the sail. By this means one tack is always fastened to
windward, at the same time that the
sheet extends the sail
to leeward.
A ship is said to be on the
starboard or
larboard tack, when she is
close-hauled, with the wind
upon the starboard or larboard side; and in this sense the distance which the sails in that
position is considered as the length of the tack; although this is more frequently called a
board.
Tack is also applied, by analogy, to that part of any sail to which the tack is usually fastened.