There are a number of systems in which supercritical cryogenic fluids are used as coolants or propellant fluids. In some modern military aircraft, the fuel is pressurized above its critical point and used as a coolant to remove heat from the aircraft engine. Accurate prediction of heat transfer coefficients to turbulent flows of supercritical fluids is essential in design of such systems. One o...

Logistics support is a key element of aircraft transportation systems. This paper is concerned with the impact of aircraft spares provisioning decisions on the availability of aircraft. Spares provisioning in this context is complicated by the fact that spares may be shared across aircraft and that aircraft may have redundant systems. In addition, decisions concerning aircraft spares support re...

In the process of aircraft assembly, various parts have an important impact on among which fasteners play role in affecting stability assembly and service life aircraft. Standardized fastener installation surface quality affect quality. Proper guaranteed are conducive to reducing risk assembly. However, characteristics standard need be studied urgently. This paper analyzes parts, information co...

This paper presents a survey of engine health monitoring systems for commercial aircraft. The state of practice is explored first, with the purpose of identifying the shortcomings of current systems. The state of the research to address these shortcomings is them surveyed to explore the alternatives. Research and monitoring applications for various other types of engines provide a good basis fo...

The article presents pr ocess application of the rapi d prototyping (RP) for manufacturing of blades of aircraft turbine in monocrystallization and also directional crystallization of casting process. It is describing the method of modelling of the chosen elements of casting model kit with the usage of RP and RT system s. The article presents the analysis of additive rapid prototyping methods (...

ILS receivers used for conventional flight inspection purposes are normally not dedicated measurement equipment. Some parts of a receiver are sensitive to dynamic signal changes caused by multipath propagation effects, e.g. those components which apply timedependent parameters such as gain control or filters. Measurement results may suffer from degradation effects and tend to be unreproducible....

Within a national research and development program funded by the german ministry of education and research (BMBF) new fly by wire flight control system has been developed and is in the process of certification according to JAR 25. Technology readiness was demonstrated for those technologies which are potential candidates for a new aircraft. New equipment was developed and demonstrated in severa...