London Heathrow Airport is a very popular and busy airport. Indeed it is one of the busiest airports in the world. In order to control noise for residents on flight paths, only one of Heathrow’s two parallel runways can be used for departures at any given time. We aim to increase the throughput of the departure system, and in particular the runway, which is a bottleneck for the whole system. Mi...

To operate in civil airspace, unmanned aircraft systems (UAS) are expected to maintain safe separation from other aircraft. Self-separation and Collision Avoidance Systems (CAS) designed for unmanned aircraft are under development to meet this requirement. To maintain airspace safety, these systems must interoperate safely with CAS onboard manned aircraft. Whereas manned aircraft CAS such as TC...

  In this paper an Ant Colony (ACO) algorithm is developed to solve aircraft recovery while considering disrupted passengers as part of objective function cost. By defining the recovery scope, the solution always guarantees a return to the original aircraft schedule as soon as possible which means least changes to the initial schedule and ensures that all downline affects of the disruption are ...

As the aircraft industry is moving towards the all electric and More Electric Aircraft (MEA), there is increase demand for electrical power in the aircraft. The trend in the aircraft industry is to replace hydraulic and pneumatic systems with electrical systems achieving more comfort and monitoring features. Moreover, the structure of MEA distribution system improves aircraft maintainability, r...

This paper presents results for the aeroelastic stability and LCO behavior for a complete aircraft. Comparison are presented between the results predicted by a cantilevered wing model, an untrimmed aircraft model (no gravity or drag) and a trimmed aircraft model. It is seen that the stability behavior is predicted accurately only if the correct trim loads are applied to the wing. The LCO behavi...

The More-Electric Aircraft (MEA) underlines the utilization of the electrical power to power the non-propulsive aircraft systems. Adopting the MEA achieves numerous advantages such as optimizing the aircraft performance and decreasing operating and maintenance costs. Moreover, the MEA reduces the emission of the air pollutant gases from the aircraft, which can contribute in solving the problem ...

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...

W ind and temperature data from radiosondes and aircraft are main sources of in situ information to data assimilation systems for NWP (see Table 1 for acronym definitions). Currently, there are about 150,000 automated aircraft reports per day, used at the NCEP, with approximately 3 times as many temperature observations than there are from radiosondes. NCEP operational analyses use automated ai...

In the book “Optimal inventory modeling of systems: multi-echelon techniques” the author Craig Sherbrooke, who has developed several important model in this area, describes a part of the model cosidered in this manuscript as follows (in “aircraft language”): “When a malfunction is diagnosed on an aircraft, the malfuncioning item is removed from the aircraft and brought into base supply. If a sp...

Two human-in-the-loop simulation experiments were conducted in coordinated fashion to investigate the allocation of separation assurance functions between ground and air and between humans and automation. The experiments modeled a mixed-operations concept in which aircraft receiving groundbased separation services shared the airspace with aircraft providing their own separation service (i.e., s...