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APPENDIX ll: PRELIMINARY AIRPORT ASSESSMENT <br />APPENDIX <br />NPIAS airports are expected to adhere to current federal aviation standards for airport <br />design. Furthermore, any grant by the FAA to a NPIAS airport for new or improved airside <br />infrastructure must adhere to current standards, except as approved by the FAA. The ARC <br />is an airport designation that signifies an airport's highest Runway Design Code. The ARC is <br />used for planning and design only and does not limit the aircraft that may be able to operate <br />safely on an airport. The first component of the ARC, depicted by a letter, is the Aircraft <br />Approach Category (AAC) and relates to an aircraft's approach speed. Table 18 represents <br />the various Aircraft Approach categories. <br />Table 18: Aircraft Approach Categories (AAC) <br />The second component of the ARC, depicted by a Roman numeral, is the Aircraft Design <br />Group (ADG) and relates to either the aircraft wingspan or tail height (physical <br />characteristics); whichever is most restrictive, of the largest aircraft expected to operate <br />on the airport's runway and taxiways adjacent to the runway. Table 19 represents the <br />various Aircraft Design Group categories. <br />Table 19: Aircraft Design Group (ADG) <br />c. ATRPORT REFERENCE CODE (ARC) <br />A Approach speed less than 91 knots <br />B Approach speed 91 knots or more but less than 121 knots <br />c Aooroach soeed 121 knots or more but less than 141 knots <br />D Approach speed 141 knots or more but less than 166 knots <br />E Approach speed 166 knots or more <br />Approach SpeedAAC <br />I < 20'< 49' <br />il 20'to <30'49'lo <79' <br />ilt 30'to <45'79' to <1 18' <br />IV 45'to <60'118'lo <171' <br />V 60'to <66'171'lo <214' <br />VI 66'to <80'214'lo <262' <br />Tail Height (feet)Wingspan (feet)ADG <br />The third component of the ARC relates to the visibility minimums expressed by Runway <br />Visual Range (RVR)values in feet. Table 20 represents the various Aircraft Design Group <br />categories. <br />Table 20: Runway Visual Range (RBR) <br />vrs Visual aooroach use onlv <br />5000 Not lower than 1 mile <br />4000 Lower than 1 mile, but not lower than "/n mile <br />2400 Lower than Yomile, but not lowerthan Trmile <br />1600 Lower than /, mile, but not lower than To mile <br />1200 Lowerthan %mile <br />lnstrument F ht Visibility Gategory (statute mile)RVR <br />Airport Strategic Business Plan, 0712612021 51