FIRE-ARROW, a steel dart used by privateers and pirates to fire the sails of the enemy in battle: these machines are particularly described in the article Engagement.
FIRE-SHIP, brulot, an old vessel filled with combustible materials, and fitted with grappling-irons to hook, and set fire to, the enemies ships in battle, &c.
As there is nothing particular in the construction of this ship, except the apparatus by which the fire is instantly conveyed from one part to another, and from thence to the enemy, it will be sufficient to describe the fire-room, where these combustibles are enclosed, together with the instruments necessary to grapple the ship intended to be destroyed.
The fire-room is built between-decks, and limited on the after-part by a bulk-head, I, behind the main-mast, from which it extends quite forwards, as represented in fig. 2, plate [IV]. The train enclosed in this apartment is contained in a variety of wooden troughs, D, G, which intersect each other in different parts of the ship’s length; being supported at proper distances by cross-pieces and stanchions. On each side of the ship are six or seven ports, H, about eighteen inches broad, and fifteen inches high, and having their lids to open downward, contrary to the usual method.
Plate. iv.
Against every port is placed an iron chamber[[24]], which, at the time of firing the ship, blows out the port-lid, and opens a passage for the flame. Immediately under the main and fore shrouds is fixed a wooden funnel, M; whose lower-end communicates with a fire-barrel[[25]], by which the flame passing through the funnel is conducted to the shrouds. Between the funnels, which are likewise called fire-trunks, are two scuttles, or small-holes in the upper-deck, serving also to let out the flames. Both funnels must be stopped with plugs, and have sail-cloth, or canvas, nailed close over them, to prevent any accident happening from above to the combustibles laid below.
The ports, funnels, and scuttles, not only communicate the flames to the out-side and upper-works of the ship, and her rigging, but likewise open a passage for the inward air, confined in the fire-room, which is thereby expanded so as to force impetuously through those out-lets, and prevent the blowing up of the decks, which must of necessity happen, from such a sudden and violent rarefaction of the air as will then be produced.
On each side of the bulk-head behind is cut a hole L, of sufficient size to admit a trough of the same dimensions as the others. A leading trough, L I, whose foremost-end communicates with another trough within the fire-room, is laid close to this opening, from whence it extends obliquely to a sally-port, I, cut through the ship’s side. The decks and troughs are well covered with melted rosin. At the time of firing either of the leading troughs, the flame is immediately conveyed to the opposite side of the ship, whereby both sides burn together.
The spaces N, O, behind the fire-room, represent the cabins of the lieutenant and master, one of which is on the starboard, and the other on the larboard side. The captain’s cabin, which is separated from these by a bulk-head, is exhibited also by P.