Compare this with Montgomery Martin's photograph below:
Thursday, 19 April 2018
Reconstructing the First World War Aerodrome at Croydon / Beddington in Detail: Bombing Observation Tower
One of the new training procedures brought in was target practice for pilots to bomb designated locations. In the field these would mainly be trenches, army camps or Zeppelin bases. Roger Potten has reconstructed the bombing observation tower that was used in this training - one side of the airfield seems to have been effectively used for target practice.