JACQ the jack of the bowsprit. See PAVILLON.

JALOUX, a name given in Provence to the quality of rolling violently at sea; or of being crank.

JAMBES de hune. See GAMBES de hune.

JARDEN, a name sometimes given to the gallery or balcony of a ship.

JARLOT, the rabbet, or channel, cut in the stem afore, and in the stern-post abaft, &c. and into the keel, to receive the ends or edges of the planks enveloping the sides and bottom of a ship.

JAS, or JOUAILS d'ancre, the anchor-stock; or the two pieces of which it is composed.

JATTE, the manger of a ship. See GATTE.

JAVEAU, a bank, or small island, formed in a river by a mass of gravel or mud.

JAUGE, the tonnage or burthen of a vessel.

JAUGER, to measure, or take the dimensions of a ship, in order to discover her burthen.

JAUMIÉRE, the hole in a ship's counter or stern, which contains the rudder-head, and in which it is turned by the tiller; the lower part of it is usually covered with a piece of tarred canvas nailed to the rudder, to prevent the entrance of the water.

JET de voiles, a complete suit of sails for all the masts, yards, stays, &c.

JET also implies any part of the cargo, &c. thrown over-board in a storm.

Faire le JET, to throw overboard the cargo, or any part of it, in a dangerous storm, in order to lighten the vessel, so as to prevent shipwreck or foundering; on which occasion the master usually draws up a protest against the weather, &c. on his arrival in port.

JETTÉE, a pier, or mole-head, formed by a heap of stones sunk at, or near, the entrance of a harbour. Also a great wharf or key.

JETTER à la mer, to throw any thing over-board.

JETTER dehors le fond du hunier, to foot the topsail out of the top.

Reference Works