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...
Main Authors: | , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
National Institute for Aerospace Research “Elie Carafoli” - INCAS
2019-12-01
|
Series: | INCAS Bulletin |
Subjects: | |
Online Access: | http://bulletin.incas.ro/files/gonzaga-lopez_buchmann_ekstrand_linner_schaad_vol_.pdf |
id |
doaj-946c58ea42b94771bb6564e70e8a8a01 |
---|---|
record_format |
Article |
spelling |
doaj-946c58ea42b94771bb6564e70e8a8a012020-11-25T01:51:47ZengNational 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 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Carlos GONZAGA-LOPEZ Florian Michael BUCHMANN Henrik EKSTRAND Andreas LINNÉR Philipp Daniel SCHAAD |
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 |
author_facet |
Carlos GONZAGA-LOPEZ Florian Michael BUCHMANN Henrik EKSTRAND Andreas LINNÉR Philipp Daniel SCHAAD |
author_sort |
Carlos GONZAGA-LOPEZ |
title |
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_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_sort |
emulation of radius-to-fix legs in departure routes via fly-by turns |
publisher |
National Institute for Aerospace Research “Elie Carafoli” - INCAS |
series |
INCAS Bulletin |
issn |
2066-8201 2247-4528 |
publishDate |
2019-12-01 |
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. |
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 |
work_keys_str_mv |
AT carlosgonzagalopez emulationofradiustofixlegsindepartureroutesviaflybyturns AT florianmichaelbuchmann emulationofradiustofixlegsindepartureroutesviaflybyturns AT henrikekstrand emulationofradiustofixlegsindepartureroutesviaflybyturns AT andreaslinner emulationofradiustofixlegsindepartureroutesviaflybyturns AT philippdanielschaad emulationofradiustofixlegsindepartureroutesviaflybyturns |
_version_ |
1724996386000207872 |