We study the airplane refueling problem which was introduced by the physicists Gamow and Stern in their classical book Puzzle-Math (1958). Sticking to the original story behind this problem, suppose we have to deliver a bomb in some distant point of the globe, the distance being much greater than the range of any individual airplane at our disposal. Therefore, the only feasible option to carry ...

T. HE AIRPLANE holds a bright new hope in the farmers' uphill struggle with insects. Since 1922, when Department engineers and entomologists developed a practical method for dusting cottonfields with calcium arscnatc to protect the crop against the boll weevil, commercial airplane dusting has become routine, particularly in cultivated fields that spread over a wide area unbroken by trees or shr...

Finite element method (FEM) is frequently used in the seat industry, as well aircraft which a sub-branch of it, especially last 10-15 years. Developments finite (FE) analysis have enabled safer and cheaper designs to be created industry. The accuracy performed while using this extremely important. For reason, creating model, some important parameters must selected processed correctly for model ...

Air traffic management is a complex system that includes aircrafts, crew, air traffic controllers, automation, traffic rules and climatic conditions that can affect in decision making during the different flight phases (Callantine, 2004). The human factor is the most relevant aspect in this management process, involving controllers working under severe stress and an increasing flow of aircrafts...