The radiations produced by airplane fling in clouds were measured by using the New Mexico Tech Lightning Mapping Array (LMA) system during STEPS in 2000. The results indicated that the source powers of airplane radiations follow an approximate Pdistribution. This is a kind of radiation produced by a discharge. The maximum powers vary from minimum locatable values of about 1W typically up to 10k...

The paper is focused on practical application of Cambridge Correlator. The goal is to propose a traffic signs inventory system by using excellent characteristics of correlator in the rapid optical correlation. The proposal of this inventory system includes obtaining of traffic signs to create the database either collecting the GPS coordinates. It is necessary to know the traffic signs position ...

The general trend towards ubiquitous networking has reached the realm of airplanes. E-enabled airplanes with wired and wireless network interfaces offer a wide spectrum of network applications, in particular electronic distribution of software (EDS), and onboard collection and off-board retrieval of airplane health reports. On the other hand, airplane safety may be heavily dependent on the secu...

The next-generation commercial airplane models have networking facilities that enable onboard systems to communicate between themselves as well as with offboard systems. This new feature allows network applications to realize many benefits for airplane manufacturing, operations and maintenance processes. However, at the same time vulnerabilities are introduced that can threaten the onboard syst...

The goal of this investigation is to study the effect of wing sweep angle on the horizontal wing-body- tail configurations in subsonic flow. For this purpose, a series of wind tunnel tests were conducted on a model having a moveable horizontal tail and a wing planform with different sweep angles. Tests were performed at different tail deflection angles. Static surface pressure distribution over...

In this work, the enhanced correction factor technique (ECFT) is modified for a subsonic wing–body interference model, which can consider forces on both lifting boxes and body elements of an idealized airplane, termed advanced ECFT method. A passenger aircraft model chosen as simulation longitudinal static aeroelasticity at transonic situation two-degree freedom, including α (angle attack) degr...

A process modeling method was raised based on cooperation pattern in airplane design, aiming at the difficulty of complexity and enormous magnitude of airplane design process. Investigating design steps, tools and organization of airplane design experienced, summarized four cooperation patterns. Feature of these patterns were analyzed, by distinguish their application backgrounds and scenarios....