Middleton, Edgar Charles, 1894- [from old catalog] · New York, C. Scribner's sons · leaf 170
less without a good searchlight.Neither is dispensable to the other. The modusoperandi is for the distant listening post to givewarning of the approach of the Zepp, as will alsothe incessant barkings, or rather whimperings, of thedogs of the neighbourhood over which the Zepp mayhappen to be. The… … FIG. 7. TRIANGULAR METHOD OF OBTAINING RANGE ANDALTITUDE OF HOSTILE AIRCRAFT Thus far we have confined our attention to sta-tionary guns alone. Many of the A.A. guns, andpractically all those of the enemy, are mobile—that 240 AIRFARE is to say, they are mounted either on motor-lorriesor on railway…
Aeronautics · Aeronautics, Military
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