But as time went on it became inevitable that the more a Q-ship operated the more likely would she be recognized and the less useful would be her work. By August, 1917, Q-ships were having a most difficult time, and during that month alone six Q-ships were lost. By September their success, broadly speaking, was on the wane. This, however, does not mean that their service had ceased to be productive or that they were no longer deemed worth while. On the contrary, as we shall see presently, they were to perform more wonderful work, and the number of Q-ships was actually increased, especially in respect of sailing ships in home waters; but those which happened to make an unsuccessful attack were at once ordered to return to their base and alter both rig and disguise. Similarly, in the Mediterranean, where the submarines were doing us so much harm, the number of Q-ships was increased, and one was cleverly included in the outward-bound convoys, to drop astern as soon as in the danger zone, after the manner of many a lame-duck merchantman whose engines had caused him to straggle. Then would come the Q-ship’s chance, when she revealed herself as a warship and fooled the submarine from attacking the convoy, which had just disappeared over the horizon in safety.
The converted ‘flower’ class sloops, originally built as minesweepers, but by the able work of the naval dockyard staff now made to resemble little merchantmen, were having a busy time. Tulip (Q 12), for instance, which had begun her Q-ship service at the end of August, 1916, was sunk eight months later by a submarine in the Atlantic and her captain taken prisoner, though eighty survivors were picked up by the British destroyer Mary Rose and landed in Queenstown.[4] The sloop Viola began this special work towards the end of September, 1916, and a month later was shelled by a submarine, who suddenly gave up the attack and made off to the northward, having evidently realized the sloop’s disguise, which none but an expert seafarer could have penetrated. Now, in each submarine there was usually carried as warrant navigating officer a man who had served in German liners and freighters and would be familiar with the shipping normally to be found in the area to which each U-boat was assigned. In this particular incident his practised eye had evidently been struck by the position of the above-water discharge being vertically under the imitation cargo hatch and derrick forward of the mainmast. These were important details which had to be watched if the disguise was to be successful.
Q-ship “Tulip”
This vessel was originally built as a sloop, but was given a false stern and generally altered to resemble a merchantman.
Q-ship “Tamarisk”
Like the “Tulip,” this vessel was originally built as a warship. She was cleverly altered so that both in hull and upperworks she resembled a merchant steamer.
To face p. 138
Another converted sloop was Tamarisk, who began that rôle at the end of July, 1916, and was commanded by Lieutenant John W. Williams, R.N.R. Towards the end of November she was shelled by a submarine at long range, so that the Q-ship had to declare herself and reply, whereupon the enemy beat a retreat and dived. Hitherto the excellent Q-ship gunnery had depended on the fact that first-class men had been selected who would be able at short range to score hits with the first or second rounds. But this incident of the Tamarisk, involving at least 6,000 yards range, showed that a small range-finder would be very useful, and this was accordingly supplied. Other sloops thus converted to resemble merchantmen were the Begonia, Aubrietia, Salvia, Heather, and so on.
The Q-ships operated not merely in the North Atlantic, English Channel, North Sea, and Mediterranean, but in such areas as off Lapland and the other side of the North and South Atlantic. For instance, the S.S. Intaba (Q 2), under Commander Frank Powell, on December 8, 1916, was in action with a submarine not far from the Kola Inlet, and had been sent to these northern latitudes inasmuch as German submarines for some time had been sinking our merchant ships off that coast. Another Q-ship operated with a British E-class submarine near Madeira and the Canaries; and another Q-ship was in the South Atlantic looking for a German raider, At other times there were the ocean-going submarines Deutschland and Bremen to be looked out for. There was thus plenty of work to be carried out by these decoy vessels in almost every sea.