This is from 'Flying Guns – World War 1: Development of Aircraft Guns, Ammunition and Installations 1914-32' by Emmanuel Gustin and myself:
"The German attacks of March 1918 were supported by CL and J planes, and countered by British fighters dropping bombs and strafing. RFC doctrine saw Camels and Bristol Fighters being mainly used for ground attack, covered by S.E.5a and Dolphin fighters. The air attacks proved very effective (particularly against horses, which panicked), but the RFC suffered heavy casualties once more as the non-specialised aircraft were not really suitable for the task.
This conflict saw the first successful anti-tank missions, when the aircraft of 34 (Bavaria) Jagdstaffel attacked a column of advancing British tanks, stopping them with machine-gun fire."
Tony Williams: Military gun and ammunition
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