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 News Archive  2017 

Neuigkeiten/Termine

> March 2017: Determination of glare probabilities during approach and departure at Freiburg airport caused by photovoltaic systems
> March 2017: Further electromagnetic compatibility studies (ILS and ASR) concerning a building’s renovation in the vicinity of the apron at Frankfurt/Main airport completed
> February 2017: Electromagnetic compatibility studies (ILS and ASR) concerning new fire station at Frankfurt/Main airport completed
> January 2017: Development of innovative flight planning software for commercial airliners – research project „ProfiFuel“ funded by BMWI launched with project partners JEPPESEN and TU Dresden
> January 2017: Norwegian ANSP AVINOR assigns update of runway capacity assessment for Oslo airport
> January 2017: DFS approves flight profile analysis tool ETAS being extended by new features (Version 2.1)



March 2017: Determination of glare probabilities during approach and departure at Freiburg airport caused by photovoltaic systems

On behalf of the city Freiburg im Breisgau GfL analyzes possible glare of flight crews during approach and departure procedures at Freiburg airport within a risk assessment. Cause for this is the planned installation of photovoltaic modules within close proximity of the airport. The general aim is to calculate reflection frequencies of sunlight in approach and departure areas taking into consideration the PV-modules’ exact position and alignment as well as the sun’s position depending on time of day and season. Hereafter, the probabilities of glare for aircrew during these periods of time are determined. Based on empirical analyzes possible damage severities caused by glare are identified and resulting operational risks are finally inspected for acceptance. Potential risk mitigation measures include alternative locations and alignment of PV-modules in regards to azimuth and elevation. For consideration of such questions, GfL’s in-house developed software GlareTech is applied. GlareTech is able to calculate glare effects induced by reflecting sunlight in a precise and rapid way, even for extensive PV-module areas. Thus, our customers benefit from short project durations. First results are expected in May.

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March 2017: Further electromagnetic compatibility studies (ILS and ASR) concerning a building’s renovation in the vicinity of the apron at Frankfurt/Main airport completed

The renovation planning of an office building located in the apron’s vicinity at Frankfurt/Main airport recently required electromagnetic compatibility studies of CNS facilities on the basis of § 18a LuftVG (german air traffic act) and requirements of the competent authority as well as Federal Supervisory Authority for Air Navigation Services (BAF). Once again the proven methodology was applied in cooperation with our partner FCS Flight Calibration Services GmbH (refer to news post February 2017). In order to guarantee detailed input data additional electromagnetic analyzes were conducted at measuring facilities of Physikalisch-Technische Bundesanstalt (PTB, Germany's national metrology institute). The aim was to measure the damping behavior of specific facade materials and the results were subsequently implemented into the electromagnetic simulations of stray fields. Thereby, an unique accuracy concerning the implementation of radar facility parameters and their reflection behavior when impinging the building’s surface is achieved and ensured.

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February 2017: Electromagnetic compatibility studies (ILS and ASR) concerning new fire station at Frankfurt/Main airport completed

Within the scope of the construction planning of a new fire station in the south of Frankfurt/Main airport an electromagnetic compatibility study for relevant CNS facilities has to be carried out according to § 18a LuftVG (german air traffic act) and requirements of the competent authority as well as Federal Supervisory Authority for Air Navigation Services (BAF). In cooperation with our partner FCS Flight Calibration Services GmbH, being specialized in high frequency technology, and on behalf of Fraport AG potential interferences between the fire station and the operation of radar and navigation facilities were analyzed. Especially the runways’ localizer and glide slope antennas (ILS), the airport surveillance radar (ASR) and in particular the secondary surveillance radar (SSR) can be affected by disruptive interferences. The assessment of radar facilities is based on state-of-the-art solver software for near and far field simulations permitting the determination of electromagnetic stray fields by using a hybrid method consisting of the Method of Moments (Mom) and Physical Optics (PO). By this technical testing procedure we can offer the currently most modern and most reliable methodology. In the course of the stray field analyzes risk mitigation measures concerning façade construction and material selection were examined. Furthermore, the assessment’s approach was co-ordinated with Deutsche Flugsicherung GmbH (DFS) as operator of the CNS facilities in the project’s early stage. Thus, an unique accuracy concerning the implementation of radar facility parameters is achieved and ensured.

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January 2017: Development of innovative flight planning software for commercial airliners – research project „ProfiFuel“ funded by BMWI launched with project partners JEPPESEN and TU Dresden

Within the scope of the federal aviation research program (LuFo) the consortium lead by JEPPESEN has been awarded the contract to research and develop new flight planning solutions for on-board supporting systems (Electronic Flight Bag, EFB). With ProfiFuel, GfL aims at specifically refining its software products for on-board application, being already successfully introduced to the market. Along ProfiFuel we will develop special avionic tools allowing real-time displaying of environmental and economical flight trajectories especially for airlines resp. cockpit crews in order to support decision making. JEPPESEN is market leader for EFB systems and TU Dresden has been developing multi-criteria optimization software for flight planning purposes for years. ProfiFuel will run for three years – we keep you informed!

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January 2017: Norwegian ANSP AVINOR assigns update of runway capacity assessment for Oslo airport

In 2006 GfL first assessed the capacity of the parallel runway system at Oslo. At that time, the planning vision of a third runway for Norway’s largest airport was focused. This masterplan ist still valid, however several extensions on the airside were realized in the meantime. Furthermore innovative approach and departure procedures were implemented, inter alia the Point Merge System (PMS) and RNP AR approach procedures. GfL has been awarded the contract by Norwegian ANSP AVINOR (also operating the Oslo airport) to extensively update the capacity values of the runway system. Therefore, analytical Statistical Queuing Models as well as fast-time simulations will be used. Results are expected for May 2017.

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January 2017: DFS approves flight profile analysis tool ETAS being extended by new features (Version 2.1)

After successfully delivering ETAS 2.0 (fuel consumption calculation of jet aircraft) to DFS in September 2016 (see news September 2016) GfL has been providing the tool’s expansion to DFS by adding further features. Now version 2.1 also permits calculations of fuel consumption for aircraft with turboprop engines. In addition, calculation routines were implemented allowing to determine pollutant emissions (e.g., NOX, COX, soot etc.) for both kinds of engines. Thus DFS has now an efficient computing environment for analyzing and evaluating specific fuel consumption as well as pollutant emissions for daily conducted flights. Consequently the current version ETAS 2.1 can help to optimize flight trajectories towards fuel and all other relevant emissions thus allowing to reduce greenhouse gas emissions.

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