Emulation of Radius-to-Fix legs in Departure Routes via Fly-By Turns
The results of a preliminary study on the emulation of radius-to-fix legs in turning departures by means of standard track-to-fix legs are presented in this technical note. While radius-to-fix equipage rates keep gradually increasing over time, a traffic mix containing aircraft with and without this...
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| Format: | Article |
| Language: | English |
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National Institute for Aerospace Research “Elie Carafoli” - INCAS
2019-12-01
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| Series: | INCAS Bulletin |
| Subjects: | |
| Online Access: | http://bulletin.incas.ro/files/gonzaga-lopez_buchmann_ekstrand_linner_schaad_vol_.pdf |
| _version_ | 1819211217491722240 |
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| author | Carlos GONZAGA-LOPEZ Florian Michael BUCHMANN Henrik EKSTRAND Andreas LINNÉR Philipp Daniel SCHAAD |
| author_facet | Carlos GONZAGA-LOPEZ Florian Michael BUCHMANN Henrik EKSTRAND Andreas LINNÉR Philipp Daniel SCHAAD |
| author_sort | Carlos GONZAGA-LOPEZ |
| collection | DOAJ |
| description | The results of a preliminary study on the emulation of radius-to-fix legs in turning departures by means of standard track-to-fix legs are presented in this technical note. While radius-to-fix equipage rates keep gradually increasing over time, a traffic mix containing aircraft with and without this navigation capability can impede an optimal management of the traffic flows whenever precise and repeatable curved flight paths are required. After test-flying various sequences of track-to-fix segments to emulate a reference constant-radius arc in a typical departure environment, the deviations to the desired flight path and the flyability aspects were assessed. The first results for a given scenario and aircraft type show an adequate path conformance for a navigation specification RNAV/RNP 1 within a certain range of aircraft performances and weather conditions. However, the reduced predictability of the roll steering when transitioning between track-to-fix segments and the high frequency in the oscillations of the bank angle may pose a problem to flight crews and passengers, respectively. |
| first_indexed | 2024-12-23T06:23:34Z |
| format | Article |
| id | doaj.art-946c58ea42b94771bb6564e70e8a8a01 |
| institution | Directory Open Access Journal |
| issn | 2066-8201 2247-4528 |
| language | English |
| last_indexed | 2024-12-23T06:23:34Z |
| publishDate | 2019-12-01 |
| publisher | National Institute for Aerospace Research “Elie Carafoli” - INCAS |
| record_format | Article |
| series | INCAS Bulletin |
| spelling | doaj.art-946c58ea42b94771bb6564e70e8a8a012022-12-21T17:57:07ZengNational Institute for Aerospace Research “Elie Carafoli” - INCASINCAS Bulletin2066-82012247-45282019-12-011149310610.13111/2066-8201.2019.11.4.9Emulation of Radius-to-Fix legs in Departure Routes via Fly-By TurnsCarlos GONZAGA-LOPEZ0Florian Michael BUCHMANN1Henrik EKSTRAND2Andreas LINNÉR3Philipp Daniel SCHAAD4Department Air Traffic Management - Austro Control GmbH, Wagramer Straße 19, A-1220, Vienna, Austria, carlos.gonzaga-lopez@austrocontrol.atDepartment Air Traffic Management - Austro Control GmbH, Wagramer Straße 19, A-1220, Vienna, AustriaATM Projects and Research - Nova Airlines AB (Novair), Box 454 39, SE-104 31, Stockholm, SwedenATM Projects and Research - Nova Airlines AB (Novair), Box 454 39, SE-104 31, Stockholm, Sweden, andreas.linner@novair.seDepartment Engineering Services - Austro Control GmBH, Wagramer Straße 19, A-1220, Vienna, Austria, daniel.schaad@austrocontrol.atThe results of a preliminary study on the emulation of radius-to-fix legs in turning departures by means of standard track-to-fix legs are presented in this technical note. While radius-to-fix equipage rates keep gradually increasing over time, a traffic mix containing aircraft with and without this navigation capability can impede an optimal management of the traffic flows whenever precise and repeatable curved flight paths are required. After test-flying various sequences of track-to-fix segments to emulate a reference constant-radius arc in a typical departure environment, the deviations to the desired flight path and the flyability aspects were assessed. The first results for a given scenario and aircraft type show an adequate path conformance for a navigation specification RNAV/RNP 1 within a certain range of aircraft performances and weather conditions. However, the reduced predictability of the roll steering when transitioning between track-to-fix segments and the high frequency in the oscillations of the bank angle may pose a problem to flight crews and passengers, respectively.http://bulletin.incas.ro/files/gonzaga-lopez_buchmann_ekstrand_linner_schaad_vol_.pdfradius-to-fix (rf)standard instrument departure (sid)multiple-tf turn (mtt)track adherencefly-by |
| spellingShingle | Carlos GONZAGA-LOPEZ Florian Michael BUCHMANN Henrik EKSTRAND Andreas LINNÉR Philipp Daniel SCHAAD Emulation of Radius-to-Fix legs in Departure Routes via Fly-By Turns INCAS Bulletin radius-to-fix (rf) standard instrument departure (sid) multiple-tf turn (mtt) track adherence fly-by |
| title | Emulation of Radius-to-Fix legs in Departure Routes via Fly-By Turns |
| title_full | Emulation of Radius-to-Fix legs in Departure Routes via Fly-By Turns |
| title_fullStr | Emulation of Radius-to-Fix legs in Departure Routes via Fly-By Turns |
| title_full_unstemmed | Emulation of Radius-to-Fix legs in Departure Routes via Fly-By Turns |
| title_short | Emulation of Radius-to-Fix legs in Departure Routes via Fly-By Turns |
| title_sort | emulation of radius to fix legs in departure routes via fly by turns |
| topic | radius-to-fix (rf) standard instrument departure (sid) multiple-tf turn (mtt) track adherence fly-by |
| url | http://bulletin.incas.ro/files/gonzaga-lopez_buchmann_ekstrand_linner_schaad_vol_.pdf |
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