In this article the importance of professional qualities, competence and their increase, directly dependent on the training of aviation technical maintenance personnel and determination the level of flight safety is covered. This publication analyses necessary training and requirements for aviation technical personnel involved in aircraft maintenance, as well as the requirements for aviation training organizations, defined as per Part-147, for such personnel preparation and training.
This paper presents a natural experiment of the spectral processing of 4.3 GHz Frequency Modulated Continuous Wave Radar (FMCWR) converted signal. The FMCWR antennas are fixed above a smooth reflective surface. The converted signal spectrum is theoretically calculated and compared with the experimental data.
Aleksandrs Urbahs, Jurate Suziedelyte Visockiene, Yen-Chen Liu, Kristīne Carjova and Sergey Kravchenko
Paper is related to development of flying robot system. The main objective is to mingle the professional backgrounds in three research directions: development of the aerial vehicle and localization, development of the tele-interaction framework and control system, development of the image fusion system and photogrammetry. Block diagrams give brief description of the systems and sub-systems under the proposed environmental system. Structure of the monitoring UAV adapted for the hand launch given.
The scientific article addresses the dependence of aircraft fleet safety on the human factor. The article demonstrates the significance of information exchange concerning the open fatigue cracks, which is necessary to bring a new type of aircraft into operation. The article provides numerical examples obtained by means of the Monte Carlo method and considers the dependences of failure probability on various factors.
Aleksandrs Urbahs, Kristīne Carjova, Aleksejs Nasibullins and Dmitry Nedelko
The paper contains results of experimental research carried out helicopter bench. In order to create an attenuation chart for AE signal amplitude in helicopter fuselage, a number of experiments were performed on the frame and stringers, inside the fuselage. Later helicopter test bench was used to develop defect localization methodology of helicopter structure fatigue damage technical diagnostics. Analysing helicopter structural defects for different helicopters types it is concluded that the joint elements of helicopter tail boom are still exposed to fatigue crack formation. AE method shows highly effective results predicting fracture of helicopter joint elements.
ACMI flight crews spend considerable time away from home on outstations. This manuscript suggests that long term stay carries its own considerations in regards to rest recovery with practical implications for Fatigue Risk Management. Four recovery factors are identified and are to be correlated with 28 crew behaviors. The end result might indicate improvement considerations for airline management organizing a long term contract with ACMI crews.
Most flight delays in aviation enterprises are related to air traffic management and technical centers. This can happen for various reasons: untimely removal of defects, lack of spare parts, deficiencies in maintenance scheduling, etc. Another reason may be inefficient management in the system of preparing the aircraft for departure. The article suggests a possible option of such an assessment as well as the results obtained from the use of this methodology applied to a specific airline.
Mareks Slihta, Irina Lazareva and Vladimirs Sestakovs
This article summarizes the results of aircraft lateral drift parameter estimation. The lateral drift of an aircraft may occur in extreme and dangerous situations when the aircraft lands in crosswind conditions. Such a situation is developing with great dynamics in a small period of time. Within seconds, the aircraft can drastically change the flight path or position. The article highlights the results obtained in a calculation made during the flight phase of the aircraft landing in crosswind.
The aim of this paper was to analyze how different techniques of production of fibrous composite materials affect the quality and strength properties of composite laminates. In this study, we use experimental data concerning a composite fabricated with the by hand lay-up and vacuum bagging method. The composites have a polyester matrix (Firestop 8175-w-1) reinforced with mate-glass fiber fabric [0/90/0/90] E glass fiber, respectively. The process parameters and criteria were determined before the samples were cut, namely the amount and soaking time of the composite with the polymer resin.