Grahame-White, Claude, 1879-, Harper, Harry, b.1880 · Toronto : Bell and Cockburn · leaf 164
as this will, un-doubtedly, prove of very considerable value as anadjunct to survey work with an aeroplane. At the end of August, 1911, several militaryofficers in France carried out special tests with aerialphotography. They made flights over fortresses,for example, and secured excellent pictures.… … bi r? — — .r?J 5 i£ o o NINTH SECTION DEVELOPMENT OF ALL-WEATHER WAR AEROPLANES I Flig-hts in thirty-five-mile-an-hour winds—Arguments ofsceptics—What the great contests of 1911 proved. Reference has been made to the fact that, as soonas engines became reHable, and airmen gainedconfidence, winds of…
Airplanes · Aeronautics, Military
Internet Archive · York University Libraries · Public Domain Mark 1.0. Free to use for anything.
