Airships in peace & war, being the second edition of Aerial warfare; (1910)
Hearne, R. P, Maxim, Hiram Stevens, Sir, 1840-1916 · London, J. Lane; New York, J. Lane Company · leaf 380
The Commercial Uses of Airships there is a definite limit to the number of vessels which can safely operate there at the same time. M 0 I ( 0 0 0 1 t 0 0 0 0 0 0 0 II ( 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 t 0 0 0 c |.>. 0 0 (I t 0 O 0 0 (I 0 flsta/ic i. .gvf ^ii-e » ' i( — SEA TRAFFIC LAND TRAFFIC 50… … AERIAL TRAFFIC Five layers, or a total of 250 vessels per square mile On land there will be a number of narrow and specially prepared strips for roads and railways ; 243
Aeronautics, Military
Internet Archive · Cornell University Library · Public domain (published before 1931). Free to use for anything.
