More-Electric Aircraft (MEA) underlines the utilization of the electrical power to power the nonpropulsive aircraft systems. The aircraft electric actuator (AEA) is an emerging aerospace technology that aims at replacing hydraulic systems with self-contained actuators operated solely by electrical power. This is one of the most important techniques of electric loads of the future more electric ...

Introduction F ORMATION flight of multiple aircraft has been an active research topic for many years. For the classical lead–follower configuration, when the follower is properly positioned with respect to the lead, the drag on the follower aircraft can be remarkably reduced due to strong wingtip vortices generated by the lead aircraft. Such close-formation flight configurations can lead to red...

The development of new technology enables the comfort service becoming an important requirement in the air travel industry. Long haul air travel may cause different physiological and psychological discomfort of aircraft passenger. Most of the aircraft company treats the passenger comfort as a main priority for the user’s acceptance of their airline. In order to improve the aircraft passenger bo...

This paper presents a novel formulation of the flight dynamic equations that permits a rapid solution for the design of trajectory following autopilots for nonlinear aircraft dynamic models. A robust autopilot control structure is developed based on the combination of the good features the Nonlinear Dynamic Inversion (NDI) method, Integrator Backstepping method, Time Scale separation and Contro...

As new aircrafts are inducted into the fleets of commercial airliners the vast airspace is becoming congested on certain routes and commercial hubs. Midair collision risks are increasing with the growth in air traffic volume and therefore; for the sake of safety aircrafts must be technically adept of monitoring the airspace and divert from a predetermined route, when traffic or weather conditio...

Next Generation Air Traffic Management will allow for the possibility of free flight, in which each aircraft chooses its own optimal route, altitude and speed. In a free flight environment, the trajectories of several aircraft may be conflicting, in which case aircraft may or may not cooperate in resolving the conflict. This paper presents a method for noncooperative conflict resolution in whic...

Distributed planning requires both architectures for structuring multiple planners and techniques for planning, communication, and cooperation. We describe a family of systems for distributed control of multiple aircraft, in which each aircraft plans its own flight path and avoids collisions with other aircraft. AUTOPILOT, the kernel planner used by each aircraft, comprises several processing "...

Aircraft con ict detection and resolution is currently attracting the interest of many air transportation service providers and is concerned with the following question: Given a set of airborne aircraft and their intended trajecto-ries, what control strategy should be followed by the pilots and the air traf c service provider to prevent the aircraft from coming too close to each other? This pap...

Results of a substantial body of ground-based simulation experiments indicate that a high degree of precision of operation for recovery aboard small ships in heavy seas and low visibility with acceptable levels of effort by the pilot can be achieved by integrating the aircraft flight and propulsion controls. The availability of digital fly-by-wire controls makes it feasible to implement an inte...

+2 (LQG), weighted-+2 and +∞ techniques are used to establish a nominal performance baseline for the vertical acceleration control of a B-52 aircraft model with flexibilities. The aircraft is assumed to be subjected to severe wind gusts causing undesirable vertical motion. The purpose of the controllers is to reduce the transient peak loads on the airplane caused by the gusts. Our designs accou...