XXI.  The ships appointed to protect and cover fireships, when ordered on service, or which, without being appointed, are in a situation to cover and protect them, are to receive on board their crews, and, keeping between them and the enemy, to go with them as near as possible to the ships they are directed to destroy.  All the boats of those ships are to be well armed, and to be employed in covering the retreat of the fireship’s boats, and in defending the ship from any attempts that may be made on her by the boats of the enemy.

XXII.  If the ship of any flag officer be disabled in battle, the flag officer may repair on board, and hoist his flag in any other ship (not already carrying a flag) that he shall think proper; but he is to hoist it in one of his own squadron or division if there be one near, and fit for the purpose.

XXIII.  If a squadron or any detachment be directed by signal to gain or keep the wind of the enemy, the officer commanding it is to act in such manner as shall in his judgment be the most effectual for the total defeat of the enemy; either by reinforcing those parts of the fleet which are opposed to superior force, or by attacking such parts of the enemy’s line as, by their weakness, may afford reasonable hopes of their being easily broken,

XXIV.  When the signal (30) is made to extend the line from one extremity of the enemy’s line to the other, though the enemy have a greater number of ships, the leading ship is to engage the leading ship, and the sternmost ship the sternmost of the enemy; and the other ships are, as far as their situation will admit, to engage the ships of greatest force, leaving the weaker ships unattacked till the stronger shall have been disabled.[8]

XXV.  If the admiral, or any commander of a squadron or division, shall think fit to change his station in the line, in order to place himself opposite to the admiral or the commander of a similar squadron or division in the enemy’s line, he will make the Signal 47 for quitting the line in his own ship, without showing to what other part of the line he means to go; the ships ahead or astern (as circumstances may require) of the station opposed to the commander in the enemy’s line are then to close and make room for him to get into it.  But if the admiral, being withdrawn from the line, should think fit to return to any particular place in it, he will make the signal No. 269 with the distinguishing signal of his own ship, and soon after he will hoist the distinguishing signal of the ship astern of which he means to take, his station.  And if he should direct by signal any other ship to take a station in the line, he will also hoist the distinguishing signal of the ship astern of which he would have her placed, if she is not to take the station assigned her in the line of battle given out.

XXVI.  When the Signal 29 is made for each ship to steer for her opponent in the enemy’s line, the ships are to endeavour, by making or shortening sail, to close with their opponents and bring them to action at the same time; but they must be extremely careful not to pass too near each other, nor to do anything which may risk their running on board each other:  they may engage as soon as they are well closed with their opponents, and properly placed for that purpose.