Aircraft noise perceived on the ground can be reduced by decelerating the aircraft during the landing approach. As an additional benefit the lower thrust settings existing during a part of the approach and the shorter approach time result in reduced fuel consumption as compared to a conventional approach. An experiment on decelerating approach procedures was carried out with a moving-base flight simulator. During the decelerating approaches the constant deceleration (0.5 kt/s) initiated (with or without autothrottle) at a speed appreciably above the final approach speed was executed with an increasing flap deflection (constant rate). Results of performance measurements, pilot effort ratings, and comments are given. A comparison was made with a fixed-base simulation and an in-flight experiment. During the decelerating approaches, considered as acceptable, more effort was spent in obtaining a performance comparable to the performance obtained during a conventional approach.
Exploratory Investigation of Decelerating Approaches of a Twin-Engined Jet Transport. Volume 2: Moving-Base Simulation and Comparison with Related Experiments
1976
85 pages
Report
No indication
English
Air Transportation , Aircraft , Noise Pollution & Control , Jet aircraft noise , Noise reduction , Transport aircraft , Approach control , Deceleration , Flaps (Control surfaces) , Flight simulation , Fuel consumption , Pilot performance , Ratings , Statistical analysis , Throttling , Noise pollution , Netherlands
Largest twin-engined civil transport
Engineering Index Backfile | 1940
Engineering Index Backfile | 1941