Efficiency Analysis of Speed Managed Descent in the Presence of Wind Prediction Error*

1Citations
Citations of this article
8Readers
Mendeley users who have this article in their library.

Abstract

Efficient flight operations are crucial for the sustainable development of aviation. Continuous descent is a potential solution in a terminal airspace. At present, descent is evaluated based on the length or duration of level flight segments only. Typically, modern flight management systems calculate optimal descent profiles with level segments added only for necessary deceleration. If no wind disturbance is present, the aircraft can follow the path calculated and achieve the optimal descent. In practice, however, differences between the predicted and actual wind require changes to the descent profile such as adding thrust, drag, or flying additional level segments. This research analyses different descent control strategies and investigates their effects on fuel burn, flight time and path deviation. Monte Carlo simulations are conducted to account for various wind conditions. Results show that even strategies with level segments increased by an average of 22% can result in lower fuel burn. Therefore, it is concluded that level segments by themselves are not a sufficient metric for descent efficiency and a strategy for lower fuel burn descents is proposed.

Cite

CITATION STYLE

APA

Andreeva-Mori, A., & Uemura, T. (2018). Efficiency Analysis of Speed Managed Descent in the Presence of Wind Prediction Error*. Transactions of the Japan Society for Aeronautical and Space Sciences, 61(1), 1–11. https://doi.org/10.2322/tjsass.61.1

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free