| Show U S exposes air secrets crets but 1 1 ASHINGTON american W V aviation turned an important corner here authorities agree with the unprecedented public showing of the united unite d states army air corps most advanced vance d equipment which hitherto has been shrouded in mystery conceived originally to inform congress of the latest developments of military aviation the demonstration was so convincing to president roosevelt that at his instigation it was kept open for three additional days giving thousands of average citizens a chance to see the results of the close operation cooperation co between the military branch of uncle sams defense forces and the american aircraft supply industries held at bolling boiling field near here the army air exhibit consisted of two feature attractions a three quarter mile lineup of ships in which one or more of each type of plane used in the army was featured and two hangars jammed with an array of camouflaged pursuit ships and enough aviation instruments and tricky equipment to make a would be spy deliriously happy despite shrouds of taped canvas which blanketed certain vital mechanisms show Alys mystery tery ship A headliner was the ardys amys mystery ship the much discussed air interceptor pursuit plane said to have flown more than mph in test flights nearby was a garish group of weirdly camou camo t E t A N J va t wa e A ON PARA PARADE DE spectators looking over a standard douglas bomber B with special armament armar nent equipment during the army air corps exhibit at bolting bolling field new equipment still in the secrecy or experimental stage was concealed by tarpaulins president roosevelt spent 50 minutes at the field flagel pursuits including the P 39 which has a tricycle landing gear some were covered with blobs of dark dusty green and foggy gray others were black and dull green while a flying fortress was a nightmare of shocking pink and weary blue certain to have a effect on future support for americas military aviation was the evidence of the publics keen interest in understanding many of the features which hitherto have been regarded as in telli gible only to most advanced aeronautic engineers both government officials and the public took ample time to digest information presented to them in the forni form of animated displays charts and c cutout ut models newest t methods of testing wing strength and stress and the famous Goodr goodrich ch deicer de icer an ingenious 1 air and rubber device which h cl officials said has done more tl than any other single development ian to make high altitude altitude and winter flying safe were pres prescott itald d |