Trajectory tracking and con guration stabilization for the VTOL aircraft (vertical take o and landing) in the literature has been only considered for the case of slight or zero input coupling. In this paper, our main contribution is to address global con guration stabilization for the VTOL aircraft with a strong input coupling using a smooth static state feedback.

As the demand for the civil aviation has been growing for decades and the system becoming increasingly complex, the use of systems engineering and operations research tools have shown to be of further use in managing this system. In this study, we apply such tools in managing landing operations on runways (as the bottleneck and highly valuable resources of air transportation networks) to handle...

During its near-ground hovering phase a Short Take-Off and Vertical Landing (STOVL) aircraft creates a complex three-dimensional flow field between jet streams, the airframe surface and the ground. A proper understanding and numerical prediction of this flow is important in the design of such aircraft. In this paper an experimental facility, used to gather validation data suitable for testing C...

In the integrated aircraft routing, crew scheduling and flight retiming problem, a minimum-cost set of aircraft routes and crew pairings must be constructed while choosing a departure time for each flight leg within a given time window. Linking constraints ensure that the same schedule is chosen for both the aircraft routes and the crew pairings, and impose minimum connection times for crews th...

The paper discusses the possible use of binocular cues by aircraft pilots in the final landing phase through a review of literature. The review includes medical and psychophysical literature, as well as works on pilot training, certification and flight experiments. It was found that stereopsis can be used as a depth cue up to several hundred meters. However, in situations where monocular cues a...

In this paper, the phase of aircraft landing associated to the lateral-directional plane is discussed and a new automatic control system is developed; it takes into consideration the crosswind and the sensor errors. H-inf control and the dynamic inversion concept are used because the first mentioned technique handles very well the system uncertainties providing robust stability, while the good ...

Management and scheduling of flights and assignment of gates to aircraft play a significant role to improve the performance of the airport, due to the growing number of flights and decreasing the flight times. This research addresses the assignement and scheduling problem of runways and gates simultaneously. Moreover, this research is the first study that considers the constraint of unavailabil...

This document is disseminated under the sponsorship of the Department of Transportation in the interest of information exchange. The United States Government assumes no liability for its contents or use thereof. This " report..is. an attempt to define the interrogation scheduling.proble " rn which arises ill the implementation of the discrete address beacon idea. The interfaces of this problem)...

Trajectory tracking and connguration stabilization for the VTOL aircraft (vertical take oo and landing) in the literature has been only considered for the case of slight or zero input coupling. In this paper, our main contribution is to address global connguration stabilization for the VTOL aircraft with a strong input coupling using a smooth static state feedback.

Midair collsions between birds and aircraft pose a hazard for both. While observing migrating birds with a tracking radar, we find that birds often react, by taking evasive maneuvers, at distances of 200-300 m to both searchlight beams and the approach of a small airplane with its landing lights on. Appropriately arranged lights on aircraft should decrease the hazard of collisions with birds.