In the old Mark I. tank it was necessary to detach the sponsons, or armoured "bow-windows," on either side before the tank could be moved by rail. This was no easy matter. The tank was driven into two shallow trenches. A stout four-wheeled trolley was run alongside, and a sort of crane was fitted, to which slings were secured. The sponson was girt about with these slings, the bolts which secured the sponson to the body of the tank were taken out, and the sponson was lowered on to the trolley.
My men, of whom the majority were inexperienced, carried out the reverse process on a dark night in a blizzard. Their fingers were so blue with cold that they could scarcely handle their tools. The climax was reached when we discovered that we should be compelled to drill new holes in several of the sponsons, because in certain cases the holes in the sponsons did not correspond with the holes in the tanks.
If the men never had a harder night's work, they certainly never worked better. Half the tanks fitted their sponsons and reached Behagnies by dawn. The remainder, less one lame duck, were hidden in Achiet-le-Grand until darkness once more allowed them to move.
Every precaution was taken to conceal the tanks from the enemy. My troop of Glasgow Yeomanry, under the direction of Talbot, who had been a sergeant-major in the Dragoons, rode twice over the tracks which the tanks had made in order to obliterate them by hoof-marks. At Behagnies the tanks were drawn up against convenient hedges and enveloped in tarpaulins and camouflage nets. In spite of our efforts they appeared terribly obvious as we surveyed them anxiously from one point after another. Our subtle devices were soon tested. An enterprising German airman flew down out of the clouds and darted upon two luckless observation balloons to right and left of us. He set them both on fire with tracer bullets, came low over our camp, fired down the streets of Bapaume, and disappeared into the east. The sporting instinct of my men responded to the audacity of the exploit, and they cheered him; but for the next twenty-four hours I was wondering if the camouflage of my tanks had been successful, or if the attention of the airman had been concentrated solely on the balloons. Presumably we were not spotted, for while at Behagnies we were neither shelled nor bombed.
The preparations for my first essay in tank-fighting were beginning to bear fruit. Eleven tanks lay within two short marches of any point from which they were likely to attack, and my crews were busy overhauling them. One crippled tank was hidden at Achiet-le-Grand, but the mechanical defect which had developed in her must have escaped the notice of central workshops. Cooper[6] was engaged night and day in taking up supplies and making forward dumps. The Corps had provided us with a convoy of limbered waggons drawn by mules—the forward roads were not passable for lorries—and the wretched animals had little rest. We were ordered to be ready by the 6th, and the order meant a fight against time. Tanks consume an incredible quantity of petrol, oil, grease, and water, and it was necessary to form dumps of these supplies and of ammunition at Mory Copse, our half-way house, and at Noreuil and Ecoust. Night and day the convoy trekked backwards and forwards under Cooper or Talbot. Mules cast their shoes, the drivers were dog-tired, the dumps at Noreuil and Ecoust were shelled, both roads to Mory were blocked by the explosion of delayed mines,—in spite of all difficulties the dumps were made, and on the morning of the battle the convoy stood by loaded, ready to follow the tanks in the expected break through.
Haigh had ridden forward to Ecoust with a handful of Glasgow yeomen in order to keep an eye on the dump and reconnoitre the country between Ecoust and the Hindenburg Line. He started in the afternoon, joining an ammunition column on the way. They approached the village at dusk. The enemy was shelling the road and suspected battery positions short of the first houses. The column made a dash for it at full gallop, but a couple of shells found the column, killing a team and the drivers.
Haigh and his men wandered into a smithy and lit a small fire, for it was bitterly cold. The shelling continued, but the smithy was not hit. They passed a wretched night, and at dawn discovered a cellar, where they made themselves comfortable after they had removed the bodies of two Germans.
The reconnaissances were carried out with Haigh's usual thoroughness. Tank routes and observation posts were selected—"lying-up" places for the tanks were chosen. Everything was ready if the tanks should be ordered to attack Bullecourt from the direction of Ecoust.
On April 4th I was introduced to the Higher Command. The Vth Corps had moved forward from Acheux to the ruined chateau at Bihucourt. There I lunched with the General, and drove with him in the afternoon to an army conference at Fifth Army Headquarters in Albert. The block of traffic on the road made us an hour late, and it was interesting to see how an Army commander dealt with such pronounced, if excusable, unpunctuality in a Corps commander.
The conference consisted of an awe-inspiring collection of generals seated round a table in a stuffy room decorated with maps. The details of the attack had apparently been settled before we arrived, but I understood from the Army commander's vigorous summary of the situation that the Third Army would not attack until the 7th. The greatest results were expected, and the Fifth Army would join in the fray immediately the attack of the Third Army was well launched. As far as I was concerned, my tanks were to be distributed along the fronts of the Australian and Vth Corps. The conference broke up, and the colonel and I were asked to tea at the chateau. It was a most nervous proceeding, to drink tea in the company of a bevy of generals; but the major-general on my right was hospitality itself, and the colonel improved the occasion by obtaining the promise of some more huts from the major-general, who was engineer-in-chief of the Army. Eventually we escaped, and the colonel[7] drove me back to Behagnies, where battalion headquarters lay close by my camp.