British air superiority continued into the second day of the offensive. Early this morning RFC reconnaissance aircraft detected German troop trains bringing reinforcements from Douai towards the Somme front and this was reported to hear quarters.
At the same time 21 Squadron RFC sent several flights of aircraft to bomb an infantry division headquarters and multiple ammunition dumps. Each RE7 aircraft carried six 336lb bombs. 27 Squadron provided support with four Martinsydes. The mission was successful and several ammunition dumps were engulfed in flames and burned out of control for most of the day.
Only four air combats took place over the Fourth Army front, and only seven over the Third Army Front.