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Word: caa (lookup in dictionary) (lookup stats)
Dates: during 1940-1949
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Usage:

...installation of Very High Frequency radio ranges (VHF) on the airways. Their ultrashort waves can punch through most electrical disturbances, keep pilots from getting lost and slamming into mountains. Like television, VHF transmission is limited to the line of sight, necessitating a great many stations. But within two years CAA intends to blanket the country with...

Author: /time Magazine | Title: Science: Flying the Weather | 3/18/1946 | See Source »

Another forward step is the improved blind landing equipment which CAA is now installing at 100 commercial airports. At present, pilots bring their planes down out of the murk with the help of a simple four-directional radio range, radio position markers and the plane's own instruments...

Author: /time Magazine | Title: Science: Flying the Weather | 3/18/1946 | See Source »

...CAA system, far more elaborate, will do much more. It will guide the pilot down a glide path directly to the runway. At intervals, radio markers will tell him his position upon it. The new system will not only be safer but faster, reducing the tedious and dangerous "stacking up" which often clogs busy airports...

Author: /time Magazine | Title: Science: Flying the Weather | 3/18/1946 | See Source »

Radar. Some day radar will supply the key to all-weather flying, but not immediately. One reason: airline safety standards demand long service testing. Another: CAA has been remarkably slow in accepting military radar devices...

Author: /time Magazine | Title: Science: Flying the Weather | 3/18/1946 | See Source »

...CAA officials predict that G.C.A. will be a valuable aid to commercial and private flying-as soon as the new system is coordinated with other blind flying aids such as radio beams and airborne radar...

Author: /time Magazine | Title: Science: G.C.A. | 1/14/1946 | See Source »

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