Flying Bombs - Scale of Attack against Belgium and Holland Report by J.I.C.

13. Experience of the attacks against London in June has shown that rates of fire and serviceability of individual sites vary considerably under operational conditions, and that in assessing the average daily effort likely to be achieved over a period, information on the enemy's intentions and past achievements for the operating unit as a whole is of greater importance than date on individual sites. It is known from documents that the Germans planned to maintain a rate of fire of 192 flying bombs per day from the whole of Flak Regiment 155 (W); this rate was, in fact, finally reduced by operational factors, more particularly supply difficulties, to about half.