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...

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 ...

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.

The scheduling efficiency of carrier-based aircrafts on flight deck is an important factor improving the sortie rates aircrafts. Based key process deck-based aircrafts, main research directions in field are summarized, which path planning and collision detection integrated method aircraft fleets, coordinated strategies Then, researches dispatch system introduced. progress shortcomings existing ...

This paper describes third aircraft model with 2 degrees of freedom. The aim of this study is to develop a mathematical model for investigation of adoptable landing gear vibration behavior and to design Proportional Integration Derivative (PID) classical techniques for control of active hydraulic nonlinear actuator. The parameters of controller and suspension system are adjusted according to be...

A survey of line pilots' attitudes about flight deck automation was conducted by the Royal Air Force Institute of Aviation Medicine (RAF IAM, Farnborough, UK) under the sponsorship of the United Kingdom’s Civil Aviation Authority and in cooperation with IATA (the International Air Transport Association). Survey freehand comments given by pilots operating 13 types of commercial transports across...

Landing a helicopter to the ship flight deck is most demanding even for experienced pilots and modeling simulation of ship-helicopter dynamic interface substantially challenging technical problem. In this paper, coupling numerical method was developed simulate fully coupled flow-field under complete wind-over-deck conditions. The steady actuator disk model based on momentum source approach reso...

Landing impact and runway unevenness have proximate consequence on performance of landing gear system and conduce to discomfort of passengers and reduction of the pilot’s capability to control aircraft. Finally, vibrations caused by them result in structure fatigue. Fuzzy logic controller is used frequently in different applications because of simplicity in design and implementation. In the pre...