[+Fernandez Duro, Armada Española i. App. 12+.]
Chapter III.—Of a Battle between One Fleet and Another.
[Extract.]
… When the time for battle is at hand the captain-general should order the whole fleet to come together that he may set them in order, since a regular order is no less necessary in a fleet of ships for giving battle to another fleet than it is in an army of soldiers for giving battle to another army.
Thus, as in an army, the men-at-arms form by themselves in one quarter to make and meet charges, and the light horse in another quarter to support, pursue, and harass[3] so in a fleet, the captain-general ought to order the strongest and largest ships to form in one quarter to attack, grapple, board and break-up the enemy, and the lesser and weaker ships in another quarter apart, with their artillery and munitions to harass, pursue, and give chase to the enemy if he flies, and to come to the rescue wherever there is most need.
The captain-general should form a detachment of his smaller and lighter vessels, to the extent of one-fourth part of his whole fleet, and order them to take station on either side of the main body. I mean that they should always keep as a separate body on the flanks of the main body, so that they can see what happens on one side and on the other.
He should admonish and direct every one of the ships that she shall endeavour to grapple with the enemy in such a way that she shall not get between two of them so as to be boarded and engaged on both sides at once.[4]
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Having directed and set in order all the aforesaid matters, the captain-general should then marshal the other three-quarters of the fleet that remain in the following manner.
He should consider his position and the direction of the wind, and how to get the advantage of it with his fleet.