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NEW YORK AIRWAYS, INC.
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scientists of the Government at the United States Navel Air Engineering Facility in Philadelphia, the Forrestal Laboratory at Princeton University and the Grumman Aircraft Engineering Corporation. Each of the tests concluded that a convergent type vane would effectively control air flow over the roof lip. Design loads for the vane and supporting structure were developed and engineered by Grumman and the vane is installed around the complete rooftop perimeter. Mr. Grover Loening supervised these studies and represented NYA in this research and development work. 

Exhaustive noise studies including the sampling of actual helicopter noise readings as well as ambient noise level measurements for the immediate area surrounding the Building site were completed. Michael J. Kodaras, Inc. (Consultants in Acoustics) has concluded and reported to the Chairman of the City Planning Commission (letter dated 19 July 1691), that "it does not seem likely that any serious or justifiable noise complaints will come from occupants of neighboring buildings." The building nearest to the helicopter flight path will be the Chrysler Building. Mr. Kodaras concluded from his studies that "for a fraction of a minute when a helicopter passes, the noice level will be approximately