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The article presents the unique capabilities of the Hercules C-130 aircraft, which can be used during transport operations at the theater of war zone operations. Insufficient network of well-equipped airports with appropriate infrastructure may prevent other transport aircraft from delivering the necessary cargo for the military operations. The use of substandard quality landing zones may be a necessity,...
Addition of H2into high methane natural gas induce some technical and operational adversities. Hydrogen has different than natural gas chemical and thermodynamic properties influencing the combustion process and operation parameters of public network. Numerical simulations were applied to study on hydrogen influence on toxic compounds concentration, adiabatic flame temperature or laminar flame speed...
The phenomenon of icing on aircraft engines is particularly related to turbine engine inlet systems. In flight conditions at temperatures close to 0°C and with high air humidity in the inlet systems of the engines there are conditions favoring the deposition of ice. Frosting of the inlet violates the air flow conditions and may cause the compressor to pump out, shut down or damage the engine. Risks...
Environmental evaluation of technical objects has created the need of tools for its realization. Due to the great number of machines and devices in use and their total significant influence on environment, special concern should be focused on this group of objects. In this series of papers the main task is to present the methodology encompassing the whole life cycle of the objects, with the special...
The article presents elements of the aeronautical search and rescue (ASAR) system in Poland, its current state and operational challenges, which are caused mostly by its ASAR team-based structure. This makes addressing an aviation incident in Poland more challenging, especially when coupled with poor weather conditions or insufficient information available at the edges LZPR’s operational ranges. This...
The subject of the paper is a functioning of the Vehicle Maintenance System (VMS) in the Tactical Air Base (TAB). In 2013 a new stationary Military Logistic System (MLS) was introduced based on the territorial division of the country. Newly created Regional Logistics Bases (RLB) and subordinated Garrison Support Units (GSU) have been essential for the new MLS. Due to the reform, military units have...
F-16 is the most advanced aircraft in the Polish Air Forces. It has been equipped with the very modem, sophisticated and advanced turbofan engine F100-PW-229. Due to the fact, that there is only one engine, its reliability, durability, efficiency and performance are the crucial factors for the safety reasons. First time in the history of the Polish Air Forces 31st Tactical Air Force Base Poznań-Krzesiny...
In today's world, more and more importance is attached to the development of methods for diagnosing technical objects. Therefore, researches at the production and operation stage of machinery and equipment become increasingly important, taking into consideration the least involvement of forces and resources in the limited time for carrying out a diagnosis. It aims primarily at increasing the level...
The constructions of today's of internal combustion engines used in PC category vehicles require the use of exhaust gas aftertreatment systems in order to meet the emission standards. The oxidation or reduction reaction processes of toxic compounds in the system is directly related to the temperature of the medium and determines the operating efficiency. The temperature value is of particular importance...
The paper presents the process of modeling the phenomenon of noise propagation generated during the passage of a railway vehicle as a function of distance from the sound source. The basis for the development of models of sound propagation was experimental research. The experiment was conducted in the so-called "zero point", i.e. the location on a section of the route, where a railway road...
The operation of propeller propulsion systems is conditioned by the fulfillment of increasingly stringent admissible standards related to noise emission. Good drive parameters indicate the purposefulness of their use. On the other hand, the constraints in the form of noise reduction contribute to the search for ways to develop the geometry of the so-called "Silent propellers”. This geometry depends...
The article discusses the issue of crack propagation occurring in the surface of friction rings of spheroidical cast iron brake discs for railway applications. The first part describes the mechanism of crack formation as well as the maintenance procedures in the area of assesing technical condition of brake discs. Because most of used procedures do not include measurements of the depth of cracks which...
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