T.F. Green Airport Improvement Program - FEIS Chapters - PVD

T.F. Green Airport Improvement ProgramEnvironmental Impact Statement and Final Section 4(f) EvaluationCircular 150/5325-4B, Runway Length Requirements for Airport Design (see Appendix E.3, Comparison of Actual andForecast Airline Fleet Mix). Chart 2-5 includes a range of required runway lengths, because within each aircraft type,there are a variety of potential aircraft configurations and engine types made available by the manufacturer for useby an operator. Any of these variations can have an impact on the weight or thrust capacity of the aircraft which inturn affect the runway length requirements of a particular aircraft type. This analysis demonstrates that the currentprimary runway length at T.F. Green Airport does not provide adequate flexibility for airlines to provide non-stopservice to the West Coast with the forecast fleet of aircraft capable of serving that distance, and limits the efficiencyof existing airline operations. The alternatives screening and analysis process identifies the recommended andappropriate runway length to which Runway 5-23 should be extended (Chapter 3, Alternatives Analysis).Chart 2-5Range of Runway Length Requirements for Non-stop West Coast-Capable AircraftAssumptions:1 Based on methodology provided in FAA Advisory Circular 150/5325-4B, Runway Length Requirements for Aircraft Design, 2005.2 Data obtained from aircraft planning manuals provided by aircraft manufacturers.3 Average hot day (86°F), sea level, maximum takeoff weight, 2,300 nautical mile trip distance (T.F. Green Airport to West Coast destination).4 Shaded area depicts range of possible required runway lengths for each type of aircraft. (Actual required runway length will vary based on specificversion of aircraft series, engine type, and use of winglets.)5 Only aircraft that are included in the T.F. Green Airport forecast fleet mix and are capable of traveling non-stop to the West Coast from T.F. Green Airport(2,300 nautical miles) are included in this chart.Chapter 2 – Purpose and Need 2-26 July 2011\\mawatr\ev\09228.00\reports\FEIS_Final_July_2011\PVD_CH02_P&N_JUL_2011.doc