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FACILITY REQUIREMENTS <br />As described below, there are two primary means for determining the Airport’s recommended runway <br />lengths: <br />Guidance A FAA Recommended Runway Length: General runway length guidance based on FAA <br />computer modeling software and Advisory Circular performance graphs for composite <br />5 <br />aircraft groups, as adjusted for EUG mean maximum temperature (82.8°F), field elevation <br />6 <br />(374 feet above mean sea level), difference in runway centerline elevations <br /> (2.79 feet for <br />Runway 16R-34L) and aircraft flight range of greater than 500 nautical miles. <br /> <br />Guidance B Critical Aircraft Planning Manual (Performance Curves): Determines runway length for <br />specific aircraft models and engines based on data from the aircraft manufacturer, as <br />adjusted for Eugene Airport to the extent possible based on aircraft operating (payload) <br />weights, flight range, non-standard temperatures, and field elevation. <br /> <br />Guidance A provides sufficient information to recommend no additional runway length is needed <br />throughout the planning period, making Guidance B unnecessary at this time. This is based on the <br />8,009-foot length of Runway 16R-34L, the forecast of aircraft operations, and the projected aircraft stage <br />lengths. Table 3-6 provides the FAA recommended runway length requirements. <br /> <br />TABLE 3-6 <br />RUNWAY LENGTH REQUIREMENTS <br />FAA Recommended <br />Aircraft Category <br />Runway Length <br />Existing Runway 16R-34L Length8,009' <br />Existing Runway 16L-34R Length 6,000' <br />Small Airplanes with approach speeds of less than 50 knots830' <br />Small Airplanes (< 12,500 lbs) <br />100% of Fleet (< 10 seats)3,690' <br />100% of Fleet (> 10 seats)4,210' <br />Large Airplanes (12,501 lbs - 60,000 lbs) <br />75% of Fleet @ 60% Useful Load4,750' <br />75% of Fleet @ 90% Useful Load6,340' <br />100% of Fleet @ 60% Useful Load5,330' <br />100% of Fleet @ 90% Useful Load7,920' <br />Large Airplanes (> 60,000 lbs) <br />500 Mile Stage Length5,140' <br />1,000 Mile Stage Length (e.g. Tucson, Arizona)6,110' <br />1,500 Mile Stage Length (e.g. Chicago, Illinois )6,990' <br />2,000 Mile Stage Length (e.g. Augusta, Georgia)7,800' <br />Sources: FAA Advisory Circular 150/5325-4, R unway Length Requirements for Airport Design, <br />FAA Airport Design Microcomputer Program 4.2D <br /> <br /> <br />5 <br /> National Oceanic and Atmospheric Administration, National Weather Service, Portland Office. <br />6 <br /> Runway Survey – 9-13-2016. <br />EUGENE AIRPORT MASTER PLAN 3-10 <br /> <br />