The Germans possessed an excellent practice ground in Kiel Bay, with every appliance for carrying out gunnery exercises, and I felt sure that they had rendered it safe from any hostile attack, and that the German Fleet would be able to maintain and improve its efficiency as time progressed.
We were not in so fortunate a position. There had been no recent opportunity for carrying out gunnery and torpedo exercises and practices; Scapa Flow had not been used as a base for such work in peace time, except for destroyers, and consequently no facilities existed there, although the proximity of Cromarty, which had been a Fleet practice base, neutralised this disadvantage to a certain extent at a later period. But there was no protected area outside the harbour where practices could be carried out in safety, and the harbour itself was not at first secure against submarine attack. Much use, however, was made of the Moray Firth outside Cromarty later when submarine obstructions had been provided, and the Germans had obligingly laid a mine-field which protected the practice area from seaward. At the commencement of the War, then, it was necessary to depend on fleet resources for the provision of targets for gunnery practices, and the practices themselves were carried out under conditions which laid the ships open to submarine attack. This was most unsatisfactory, and the work suffered considerably as the result. The opportunity provided by constant sea work in the first months of the War was, however, utilised to carry out such gunnery practices as the conditions admitted.
At first the custom was for the Fleet to use small targets which the ships carried with them. These were unsuitable; their small size rendered them frequently invisible at even moderate ranges in any sea, and I felt that the Fleet could not make progress under such conditions.
Practice at rocks or small islands was next resorted to, but no really suitable rocks existed, and, in any case, practice at them eventually involved too much risk of submarine attack, as the German submarines began to find their way to the westward of Scotland. Towards the end of 1915 it became possible, owing to the increase in the number of destroyers attached to the Fleet, and to the provision of submarine obstructions at Cromarty, to carry out gunnery practices at long ranges at targets in the Moray Firth, and real improvement dated from that period.
Later still, battle practice targets were brought to Scapa Flow, and the long-range firing was carried out in the Pentland Firth, a still more convenient place.
Meanwhile Scapa Flow itself had been developed for all the preliminary gunnery practices which could be carried out with guns up to 6-inch in calibre, and also for night firing and for torpedo work. The fine stretch of water was secure from submarine attack after the obstructions had been provided, and ships could practise by day and night without danger of attack. The Flow was simply invaluable for this purpose. Ships were firing, running torpedoes, practising fire control exercises, carrying out experiments and exercising in dealing with attacks by destroyers, day after day, from daylight until dark.
After dark, night firing was frequently carried out, and occasionally a division of battleships was exercised in steaming in company, without lights, in order to give the officers of watches practice. When the constant sea work of the earlier months of the War gave place to occasional cruises, the seagoing and fighting efficiency of the Fleet was maintained at a remarkably high standard as a result of the work in Scapa Flow.
During the period 1914–16 a marked advance was undoubtedly made in gunnery efficiency. At an early period of the War a memorandum was issued pointing out the necessity for increased attention to drill and organisation. Absolute perfection was insisted upon, and it was obtained, by the strenuous efforts of officers and men. I knew that we had to deal with an enemy who would be as perfect as constant drill could ensure.
A great extension of the system of Director Firing, by which one officer or man could lay and fire all the guns, was made. The situation in this respect before the War was that a few ships had been fitted for the system, which had been devised by Admiral Sir Percy Scott. But a very large number of officers were sceptical as to its value compared with the alternative system; there was considerable opposition to it, and the great majority of the ships were not fitted. In some cases the system was not favoured even in the ships provided with it.
It had fallen to my lot in 1912 to carry out competitive trials of the Director System and the alternative system already in use, and the results of these trials had fully confirmed me in my previous opinion of the great value of the Director System. I was able to press these views on my return to the Admiralty at the end of 1912 as Second Sea Lord, and it was then decided to provide all the later ships with the arrangement. Little progress had, however, been made when the War broke out, only eight battleships having been fitted.