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Airships past and present, together with chapters on the use of balloons in connection with meteorology, photography and the carrier pigeon (1908)

Hildebrandt, A. (Alfred), b. 1870, Story, W. H. tr · New York, D. Van Nostrand company · leaf 168

An illustration from Airships past and present, together with chapters on the use of balloons in connection with meteorology, photography and the carrier pigeon, 1908, leaf 168
eft, and to R on theright (5, 9). Then the range hasbeen too long. (5) Both observers report that ithas fallen on the left or on the right.This is a doubtful case, and must bemarked as such. In cases (3) and (4), the more theshot appears to one of the observersto lie to the one side, the greater… … Fig. 90.—Sketch illustrating themethod of aiming at a balloon. 148: AIRSHIPS PAST AND PRESENT. within range of the gun, the sights must be so set as to con-tinually diminish the range, till it is found that successive shotsfall, the one in front and the other behind the^balloon. It is thuspossible…

Aeronautics

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