Nondestructive evaluation technologies have recently been challenged to inspect thick, layered, conducting materials for fatigue and corrosion damage. Structures that fall into this class, such as airframe wings, pose significant difficulties for conventional inspection techniques. Reflections of ultrasound at layer boundaries cause serious problems for the application of ultrasonic inspection ...

Abstract Alongside the increase in air traffic and number of aircraft, reported aviation events has also been increasing. We processed data included European Coordination Centre for Aviation Incident reporting Systems (ECCAIRS), analyzing small large aircraft reliability safety their operations, covering according to ICAO occurrence categories. Airframe systems are largest contributor total whi...

Abstra t. In order to optimise maintenan e and in rease safety, the Royal Netherlands Navy initiated the development of a multihannel on-board data a quisition system for its Lynx heli opters. This AIDA (Automati Inight Data A quisition) system re ords usage and loads data on main rotor, engines and airframe. We used re nement in ombination with model he king to arrive at a formally veri ed pro...

Simulation and the resulting prediction of the dynamic behavior of an aircraft and its landing gear system during ground maneuvers is an essential part in the design process. A realistic estimation of unwanted oscillations, such as gear walk and shimmy, for the landing gear and whole aircraft can be readily obtained with an MBS-model. It is then possible to adjust the model for changes in the s...

In the last decade, drone market has grown rapidly for both civil and military purposes. Due to their versatility, demand drones is constantly increasing, with several industrial players joining venture transfer urban mobility air. This exacerbated problem of noise pollution, mainly due relatively lower altitude these vehicles proximity routes extremely densely populated areas. particular, aero...

1. Financial support of The National Centre for Research and Development, European Union, PZL Mielec A Sikorsky Company in the framework Regional Development Fund Project “Advanced techniques fabrication airframe structures using innovative friction stir welding (FSW) technology”, Nr INNOLOT/I/4/NCBR/2013 is gratefully acknowledged.

engine and airframe manufacturers for decades have cited the direct relationship between engine wear and high exhaust gas temperature (EGT) in recommending that operators use less than maximum takeoff thrust whenever possible. While the cost benefits of reduced-thrust takeoffs are thoroughly documented, the safety benefits are not as well understood. Thus, there is a common perception that usin...