Show 41 play in the A ir L i za 3 V 4 A america observes army day april aas 6 as uncle sam turns attention to his air corps an important arm of defense at march field cam calif aerial bombs are loaded with sand and water preparatory to defense maneuvers the ithe bottles contain smoke chemicals that leave a trail and enable the pilot to check his alm aim A mechanic adjusts pound bombs beneath an army plane piano before takeoff tor to practice at duroc dry lake 5 while one branch ot of the army anny develops the offensive side ot of aerial warfare another places emphasis emp hasia on defensive tactics to combat com bat enemy planes at fort monroe va vai this 1938 model soldier works on an antiaircraft anti aircraft director |