The work of the submarines on the anti-submarine patrols, minelaying trips, etc., was useful, and at times exciting; but it must be remembered that the main duty of the flotillas lay in watching for the enemy's fleet, and that this duty continued throughout the war. Boats were stationed watching both the entrance to the Baltic and the several exits from the Bight right up to the date of the signing of the Armistice. For the first two years of the war the duty of these boats was to attack the enemy if seen, and to signal afterwards that the enemy had been met. The signalling question then was a secondary consideration. The boats were considered less as scouts than as torpedo-boats, especially in view of the fact that in the early part of the war their wireless range was limited. When "E 23" (Lieut.-Commander Turner) torpedoed the _Westfalen_ in August 1916, he rose to the surface as the enemy drew out of sight and signalled the enemy's position to the Commander-in-Chief. It is true that no decisive result came of the signal, as the enemy turned home when barely clear of the Bight, and the Grand Fleet's attempt to cut him off, as usually happened, failed again; but that signal was the first clear "enemy report" given by a unit of the Bight Patrol. It was then that new long-range wireless sets were installed in all boats, amid the curses of the submarine officers, who at that date were distinctly narrow-minded on the question of how their boats could be most usefully employed. They looked upon it as a personal insult that their limited accommodation should be cut down by the extra instruments supplied, and also that (this was where the shoe pinched) their splendid independence on patrol should be lost to them now that Their Lordships could call them up direct from the wireless at Whitehall. But they soon discovered that the idea was right, and that their loss of independence weighed nothing against the new strategic use which had been found for the submarine as a fleet scout. Orders were issued that the boats were on no account to fire at the enemy if he was seen coming out, until a wireless signal had been made to Commander-in-Chief. This, of course, implied that the boat could not attack the outward-bound High Sea Fleet at all, as the signal would have to be made from surface trim, and by the time it was acknowledged the chance of a torpedo attack would have gone by. If the enemy was seen homeward bound, the submarines were at liberty to fire at them; but outward-bound squadrons were safe from under-water attack. A submarine officer was heard to explain the reason for these orders by the light of his own logic: "The Commander-in-Chief won't let us fire at them coming out, because he wants 'em for himself, and thinks if we butt in it discourages them and they lose their enthusiasm; I suppose he's right, but it looks a bit selfish...."