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Comparison of exhaust emission from the most commonly used aircrafts with implementation LTO cycle to operating conditions

The LTO cycle (Landing and Take–off cycle) is a research method used for jet engines certification. The measurements are performed in stationary conditions. With the development of aviation, the LTO test started to be carried out more often, but not for its’ original purpose. A new aim was an assessment impact of aircraft movement on environment in airports area. LTO cycle consists of four phases (according to ICAO Annex 16): take–off, climb out, approach and taxi/idle. Every airport has different infrastructure, what affects on time during basic flight operations like taxi or landing or approach. Duration time should be adjusted to every single airport. Poznań–Ławica Airport which is located in Poland was adopted as research area. Based on parameters calculated specially for Poznań–Ławica Airport it is possible to computed emission from the mostly used aircraft. The research confirms the validity of the thesis that parameters of flight phases adopted in the LTO test performed for the purpose of testing emissions in airport areas are not equal. For this type of research, individual parameters should be special for each airport to get results much closer to the actual local emission.
Topic: Emission measurements and aftertreatment
Author: Marta Maciejewska
Co-authors: Marta Galant Paweł Fuć