Results published in Web-Only Document 54. (4) Guidelines for interpreting and presenting results to various stakeholders. (3) Guidelines for setting up runway length analysis cases and (2) Suggestions for data sources and/or assumptions to best characterize the unique operational features of subject airports (1) Step-by-step instructions for using the tool The user guide should include, at a minimum: (2) Account for performance engineering by aircraft type (e.g., takeoff weight, power settings). (1) Include active civil fixed-wing aircraft weighing less than 12,500 pounds and certificated under 14 CFR Part 23 and The Small Aircraft Performance Database should, at a minimum: (3) Allow users to evaluate various runway length scenarios based on guidance from FAA advisory circulars, varying levels of service, or what may be desired by the airport and community. (2) Consider both individual aircraft types and aircraft families and (1) Account for unique airport characteristics and conditions (e.g., temperature, elevation, gradient, wet runway) The Small Aircraft Runway Length Analysis Tool should: The objective of this research is to develop a Small Aircraft Runway Length Analysis Tool, Small Aircraft Performance Database, and user guide for the tool. Although the FAA is pursuing development of a runway length analysis tool for large aircraft, which will be integral to an update of the advisory circular, research is needed to develop a similar tool for small aircraft. Airports need confidence that the calculated runway length will meet their service needs. In addition FAA Advisory Circular 150/5325-4B, Runway Length Requirements for Airport Design has not been updated in nearly 15 years and may not reflect current small aircraft fleet performance data. Runway length requirements often are difficult to determine for small (i.e., under 12,500 pounds) aircraft, due to limited and hard-to-acquire aircraft data. Runway length is also important from a cost perspective, because longer runways generally cost more to maintain. One of the most important operational characteristics of an airport is the length of its longest runway, as this is a key factor in determining the types of aircraft that can use the airport and whether or not these aircraft can operate at maximum capabilities. “There are no other changes planned at present for other Irish airports, but the magnetic variation is continuously monitored.Small Aircraft Runway Length Analysis Tool “Assuming this remains constant, every runway will need to change its designation every 50 years,” he said. “It should be noted that the change in runway designator numbers will have no effect on aircraft movements.”Ī spokesman for the IAA said the rate of change of the magnetic variation is not linear or constant, but, for Ireland, is of the order of magnitude of one degree every five years. “Additionally, we will be replacing the taxiway signage and painting new designation numbers on runway thresholds. “There will also be an alteration of software systems, new airfield mapping and a change in communications with private and commercial pilots,” he said. It has resulted in confirmation from the airport yesterday that the main runway will be re-designated as runway 16/34 from April.Ĭiaran Carton, general manager of operations at Cork Airport, said a change in runway designation is an unusual move which only occurs approximately once in every 50 years. They now stand at 164°M and 344°M, respectively. The main runway at Cork Airport has, since 1961, been designated runway 17/35 - depending on which direction an aircraft approaches or departs.īut the drifting of Earth’s magnetic poles over the last half century has seen a shifting of the runway’s magnetic headings. The Left, Center, and Right designations are pretty self explanatory. If the heading is 060, it will be runway 6. For instance, if the heading down the centerline is, say, 300, the runway will be 30. Runway designators are vital pieces of information for pilots being cleared for take-off, landing and taxiing. Runway numbers are assigned based on the magnetic heading of the runway.
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