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Mr. David Brook March 11, 1988 Page -2- questionable whether one would be able to see the aimraft In its flight pattern. Similarly with an aircraft taking off toward the south, the aircraft would be more than one mile away and east of 1-85 before turning. The aircraft would likefy have a westedy destination before one would poten- tially see the aircraft; east and southern destinations would turn lee and not be visible frqm Favoni and northern destinations would not likely use that departure end except when the winds fa- vored that departure direction. To test oumelves, we developed a computer program to estimate per- ceived size of an aircraft on approach, departure, or flight pattern. The typical aircraft used for the analysis was the turboprop. Perceived aircraft size in the sky ranged on approach to tje size of a nickel to the size of a halt dollar in the flight pattern. In terms of approaches to the airport and the visibility of aircraft in flight pattern, the rela- tive location of Favoni 1500 feet west of the northern end of the runway and being parallel, i.e., one side to the runway rather than in its approach, one would find that the general one retie'flight pattern radius of the runway would most always find aimraft 1/2 mile to the west of Favoni. Again, the likelihood of the visual impact being as great at this distadce given topography/foliage as tl~e repute~ continuous overtlights by commercial aircratt enroute to the Charlotte Douglas Inter- national Airport is questionable. The Airport Master Plan describes a 20 year scenario noise curve of Ldn 65 not to excee~l airport proparty. The same ~nalysis would not place Favoni in the Ldn 60 curve. Therefore, the Ldn 55 im- pact of the proposed airport reiative to the Historic register-listed site should be acceptable. We hope that this In[ormation will further clarify the issue. Noise and aesthetics of Favoni should not be affected by the proposed Poplar Tent Airport, a general aviation facility. From re- ports of residents nearby, the current commemlal air traffic and its attendant noise enroute Char- Iotte Douglas presents a greater threat of disturbance today than the proposed Cabarrus County Air- port would be both in the near and long term future. Sincerely, WILBUR SMITH ASSOCIATES, INC, Gary D. Lp"~ston, AICP ( / Senior Av~tion Specialist '~' GDL/fd cc: Mr. Chades McGtnnis, County Manager V/ Mr. William S. Fisher, Airport Commission Mr. James F. Owens, County Planner Mr. Thomas Roberts, FAA, ADO/Atlanta Mr. John CaldweII, Division of Aviation .