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Journal articles on the topic 'Flight characteristics'

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1

PRISACARIU, Vasile. "ANALYSIS OF UAVs FLIGHT CHARACTERISTICS." Review of the Air Force Academy 16, no. 3 (2018): 29–36. http://dx.doi.org/10.19062/1842-9238.2018.16.3.4.

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Chen, Jiu Sheng, and Xiao Yu Zhang. "Modeling of Flight Arrival Scheduling Based on Fuzzy Programming." Applied Mechanics and Materials 313-314 (March 2013): 995–98. http://dx.doi.org/10.4028/www.scientific.net/amm.313-314.995.

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The issue of flight arrival in civil airport is a typical problem of discrete event dynamic system. IN Time is a random variable. According to the characteristics of arrival flights, flight delay cost as objective function, the fuzzy model for scheduling arrival flights is established. In the case of growing air traffic, the model is a better opinion for scientific optimum ordering matter in air traffic control system. It can improve flight operation on time.
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BRUDERER, BRUNO, and ANDREAS BOLDT. "Flight characteristics of birds:." Ibis 143, no. 2 (2001): 178–204. http://dx.doi.org/10.1111/j.1474-919x.2001.tb04475.x.

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4

Öznalbant, Zafer, and Mehmet Ş. Kavsaoğlu. "Flight control and flight experiments of a tilt-propeller VTOL UAV." Transactions of the Institute of Measurement and Control 40, no. 8 (2018): 2454–65. http://dx.doi.org/10.1177/0142331218754618.

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The purpose of this work is to present a study on the stability and control of an unmanned, fixed wing, vertical take-off and landing aerial vehicle. This airplane is driven by a fixed-pitch tilt-propeller system with the capability of vertical take-off and landing as well as conventional flight. The novelty of the vehicle is the use of a fixed-pitch propeller system instead of variable-pitch tilt-rotors. There are three flight modes: vertical, transitional and conventional flight modes. Each flight mode has different dynamic characteristics. Therefore, these modes each need dedicated flight c
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5

Yang, Zi-Yi, and Rong-Jiun Sheu. "EFFECTS OF FLIGHT ROUTE VARIATION AND GREAT-CIRCLE APPROXIMATION ON AVIATION DOSE ASSESSMENT FOR POPULAR FLIGHTS FROM TAIWAN." Radiation Protection Dosimetry 184, no. 1 (2018): 79–89. http://dx.doi.org/10.1093/rpd/ncy186.

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Abstract Galactic cosmic-ray-induced secondary particles in the atmosphere constitute an important source of radiation exposure to airline crews and passengers. In this study, a systematic dose assessment was conducted for 11 popular flights from Taiwan, with an emphasis on the effects of flight route variation and assumption. The case studies covered a broad range of commercial flights departing from Taipei, from a domestic flight of <1 h to a long-haul international flight of more than 14 h. For each route under study, information on 100 actual flight routes was retrieved from flight trac
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Kulba, P., V. Fedenko, O. Cherednikov, V. Chupryna, and O. Pankul. "TAKING INTO ACCOUNT THE REQUIREMENTS OF EUROPEAN CRITERIA FOR CERTIFICATION OF AIRWORTHINESS OF AIRCRAFT IN TECHNIQUES FOR TESTING THE FLIGHT-TECHNICAL CHARACTERISTICS OF HELICOPTERS." Наукові праці Державного науково-дослідного інституту випробувань і сертифікації озброєння та військової техніки, no. 10 (December 30, 2021): 108–16. http://dx.doi.org/10.37701/dndivsovt.10.2021.12.

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The article considers the problem of improving the methods of testing to determine the flight characteristics of helicopters, taking into account the requirements of European criteria for certification of airworthiness of military aircraft. To ensure interoperability with NATO standards, new standard methods for obtaining and evaluating the flight performance of helicopters have been developed. On the example of determining fuel consumption in assessing the range and duration of the flight considered the basic principles of development of advanced standard techniques.
 The test methods ar
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Burmistrov, V. I., E. I. Matkevich, and I. V. Ivanov. "Analysis of the Radiation Situation in Aviation Flights under Conditions of Solar Proton Events." MEDICAL RADIOLOGY AND RADIATION SAFETY 70, no. 3 (2025): 54–69. https://doi.org/10.33266/1024-6177-2025-70-3-54-69.

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With a general analysis of the levels of ionizing radiation characteristic of outer space and causing radiation hazard factors for astronauts, the issues of assessing the radiation situation in air travel also remain relevant. The purpose of the study was to analyze the types and characteristics of ionizing radiation in airspace up to heights of 20 km above the Ground and possible radiation doses to flight personnel during flights under these conditions. The composition of ionizing radiation and the energy characteristics of proton events are analyzed. The radiation dose rates are estimated de
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SUZUKI, Shota, Shinichiro ITO, and Masaki HIRATUKA. "Flight characteristics of flying discs." Proceedings of the Symposium on sports and human dynamics 2020 (2020): B—5–2. http://dx.doi.org/10.1299/jsmeshd.2020.b-5-2.

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9

Wilhelm, Frank H., and Walton T. Roth. "Clinical Characteristics of Flight Phobia." Journal of Anxiety Disorders 11, no. 3 (1997): 241–61. http://dx.doi.org/10.1016/s0887-6185(97)00009-1.

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10

Bader, Gail Byrne, Maureen Terhorst, Patricia Heilman, and Judith A. DePalma. "Characteristics of flight nursing practice." Air Medical Journal 14, no. 4 (1995): 214–18. http://dx.doi.org/10.1016/1067-991x(95)90005-5.

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11

TAKEOKA, Takumi, Masaki HURATSUKA, Shinichiro ITO, Kazuya SEO, and Junta KABAYA. "Volleyball flight trajectory aerodynamic characteristics." Proceedings of Mechanical Engineering Congress, Japan 2022 (2022): J233–04. http://dx.doi.org/10.1299/jsmemecj.2022.j233-04.

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12

Fiedler, Patrique, Jens Haueisen, Ana M. Cebolla Alvarez, et al. "Noise characteristics in spaceflight multichannel EEG." PLOS ONE 18, no. 2 (2023): e0280822. http://dx.doi.org/10.1371/journal.pone.0280822.

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The cognitive performance of the crew has a major impact on mission safety and success in space flight. Monitoring of cognitive performance during long-duration space flight therefore is of paramount importance and can be performed using compact state-of-the-art mobile EEG. However, signal quality of EEG may be compromised due to the vicinity to various electronic devices and constant movements. We compare noise characteristics between in-flight extraterrestrial microgravity and ground-level terrestrial electroencephalography (EEG) recordings. EEG data recordings from either aboard Internation
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Karmali, Faisal, and Mark Shelhamer. "The dynamics of parabolic flight: Flight characteristics and passenger percepts." Acta Astronautica 63, no. 5-6 (2008): 594–602. http://dx.doi.org/10.1016/j.actaastro.2008.04.009.

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14

Sherub, Sherub, Gil Bohrer, Martin Wikelski, and Rolf Weinzierl. "Behavioural adaptations to flight into thin air." Biology Letters 12, no. 10 (2016): 20160432. http://dx.doi.org/10.1098/rsbl.2016.0432.

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Soaring raptors can fly at high altitudes of up to 9000 m. The behavioural adjustments to high-altitude flights are largely unknown. We studied thermalling flights of Himalayan vultures ( Gyps himalayensis ) from 50 to 6500 m above sea level, a twofold range of air densities. To create the necessary lift to support the same weight and maintain soaring flight in thin air birds might modify lift coefficient by biophysical changes, such as wing posture and increasing the power expenditure. Alternatively, they can change their flight characteristics. We show that vultures use the latter and increa
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Natiq qızı Nurullazadə, Fidan. "Evaluation of flight conditions at tropopause level." NATURE AND SCIENCE 07, no. 02 (2021): 49–52. http://dx.doi.org/10.36719/2707-1146/07/49-52.

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High-quality organization of meteorological support along the flight routes, increasing its efficiency depends on many factors. These factors include the moderate and high intensity turbulence observed in the middle and upper flight echelons, icing, jet streams, volcanic ash clouds and their distribution areas, tropopause level, its altitude, and others. In the pre-flight preparation phase, the meteorological body provides meteorological support for all types of domestic and international flights planned in the middle and upper troposphere. The organization of flight efficiency and economic pr
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Babenko, Grigory, Vadim Efimov, Mikhail Kiselev, and Maksim Shkurin. "Results of the Study of the Influence of External Cargo Parameters on the Helicopter Controllability." Aerospace 9, no. 5 (2022): 229. http://dx.doi.org/10.3390/aerospace9050229.

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Helicopters are widely used for air transportation and aerial work with cargo on external cables, one of the most challenging and dangerous uses. The main reason for the flight complication is the change in the controllability characteristics of the helicopter because of the presence of cargo. As of today, flight tests are mainly conducted to determine the feasibility of aerial transportation and aerial work involving external cargo. In addition, they are conducted to determine safe flight regimes when performing such operations. From a flight safety perspective, it is always desirable to know
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Yuan, Yujie, and Xiushan Jiang. "Wireless Network-Aided Delay Information System Correlation with Airport Grid Distribution Based on Multideterminants Big Data." Mobile Information Systems 2023 (April 27, 2023): 1–11. http://dx.doi.org/10.1155/2023/1987326.

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The intelligent sensing and communication technology in the airports’ grid information system provides a multidimensional big data set for analyzing flight delays. These data from air traffic control, weather, and multiple determinants will cause initial flight delays. Due to the influence of adjacent flight time correlation, the initial delay causes the delay of subsequent flights, discovered by mining information sensing data, forming the phenomenon of flight delay diffusion. Different determinants will lead to the delay diffusion form of different regions, and more seriously, it will lead t
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18

Howell, Ryan G., Ryan R. Jensen, Steven L. Petersen, and Randy T. Larsen. "Measuring Height Characteristics of Sagebrush (Artemisia sp.) Using Imagery Derived from Small Unmanned Aerial Systems (sUAS)." Drones 4, no. 1 (2020): 6. http://dx.doi.org/10.3390/drones4010006.

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In situ measurements of sagebrush have traditionally been expensive and time consuming. Currently, improvements in small Unmanned Aerial Systems (sUAS) technology can be used to quantify sagebrush morphology and community structure with high resolution imagery on western rangelands, especially in sensitive habitat of the Greater sage-grouse (Centrocercus urophasianus). The emergence of photogrammetry algorithms to generate 3D point clouds from true color imagery can potentially increase the efficiency and accuracy of measuring shrub height in sage-grouse habitat. Our objective was to determine
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19

Woodrow, K. P., A. G. Gatehouse, and D. A. Davies. "The effect of larval phase on flight performance of African armyworm moths, Spodoptera exempta (Walker) (Lepidoptera: Noctuidae)." Bulletin of Entomological Research 77, no. 1 (1987): 113–22. http://dx.doi.org/10.1017/s0007485300011597.

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AbstractThe characteristics of the high and low density forms of noctuid moths, including Spodoptera exempta (Walker), exhibiting a density-dependent phase polyphenism have frequently been discussed in relation to migration. However, the only previous (unpublished) demonstration of an effect of larval phase on adult flight performance, using a tethered-flight technique, was invalidated by the recent discovery that the principal determinant of flight potential in S. exempta is genetic. When the incidence of prolonged flight was measured in moths derived from genetically-matched (full-sib) sampl
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20

Qin, Kun, Qixin Wang, Binbin Lu, Huabo Sun, and Ping Shu. "Flight Anomaly Detection via a Deep Hybrid Model." Aerospace 9, no. 6 (2022): 329. http://dx.doi.org/10.3390/aerospace9060329.

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In the civil aviation industry, security risk management has shifted from post-accident investigations and analyses to pre-accident warnings in an attempt to reduce flight risks by identifying currently untracked flight events and their trends and effectively preventing risks before they occur. The use of flight monitoring data for flight anomaly detection is effective in discovering unknown and potential flight incidents. In this paper, we propose a time-feature attention mechanism and construct a deep hybrid model for flight anomaly detection. The hybrid model combines a time-feature attenti
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21

Gómez-López, José Miguel, José Luis Pérez-García, Antonio Tomás Mozas-Calvache, and Jorge Delgado-García. "Mission Flight Planning of RPAS for Photogrammetric Studies in Complex Scenes." ISPRS International Journal of Geo-Information 9, no. 6 (2020): 392. http://dx.doi.org/10.3390/ijgi9060392.

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This study describes a new approach to Remotely Piloted Aerial Systems (RPAS) photogrammetric mission flight planning. In this context, we have identified different issues appearing in complex scenes or difficulties caused by the project requirements in order to establish those functions or tools useful for resolving them. This approach includes the improvement of some common photogrammetric flight operations and the proposal of new flight schemas for some scenarios and practical cases. Some examples of these specific schemas are the combined flight (which includes characteristics of a classic
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NEGAHBAN, Mir Hossein, and Ruxandra Mihaela BOTEZ. "Comparison of Aerodynamic Characteristics of Morphing and Conventional Wings." INCAS BULLETIN 17, no. 2 (2025): 47–58. https://doi.org/10.13111/2066-8201.2025.17.2.5.

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The present research investigates the advantages of a morphing versus a hinged flap. The morphing wing model is equipped with a morphing trailing edge, while the conventional wing has a hinged flap system. The aerodynamic and fight dynamics characteristics of both wings are evaluated, and a comparison is drawn to find out how the morphing wing enhances the flight performance in cruise flight conditions in terms of flight range increase. For this purpose, gradient-based aerodynamic optimization is performed to find the ideal configuration of a morphing flap in a cruise flight with the objective
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23

Munoz, Claudia, Henry Laniado, and Jorge Córdoba. "Airline choice model for an international round-trip flight considering outbound and return flight schedules." Archives of Transport 54, no. 2 (2020): 75–93. http://dx.doi.org/10.5604/01.3001.0014.2969.

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This paper quantified the impact of outbound and return flight schedule preferences on airline choice for international trips. Several studies have used airline choice data to identify preferences and trade-offs of different air carrier service attributes, such as travel time, fare and flight schedule. However, estimation of the effect return flight schedules have on airline choice for an international round-trip flight has not yet been studied in detail. Therefore, this study introduces attributes related to return flight characteristics and round-trip flight schedule interaction into the air
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Chiang, Kwo-Tsao, Hsin Chu, Min-Yu Tu, et al. "Analysis of Altitude Hypoxia Training and In-Flight Hypoxia Events among the Helicopter Aircrews." International Journal of Environmental Research and Public Health 18, no. 16 (2021): 8405. http://dx.doi.org/10.3390/ijerph18168405.

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All aircrews are required to undertake the altitude hypoxia training and be familiarized with the hypobaric effect on their physiological regulation. Due to the characteristics of the helicopter aircrafts, few researches have reported in-flight hypoxia events among the helicopter aircrews. The main goal of this study was designed to compare the hypoxia symptoms of helicopter aircrews between the altitude hypoxia training and during flight. We developed a questionnaire to collect the details of chamber flights and in-flight hypoxia events in 2019. All data were managed by the SPSS software and
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Miao, Zhang, Christopher Gomez, Yoshinori Shinohara, and Norifumi Hotta. "Drone LiDAR Occlusion Analysis and Simulation from Retrieved Pathways to Improve Ground Mapping of Forested Environments." Drones 9, no. 2 (2025): 135. https://doi.org/10.3390/drones9020135.

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Drone-mounted LiDAR systems have revolutionized forest mapping, but data quality is often compromised by occlusions caused by vegetation and terrain features. This study presents a novel framework for analyzing and predicting LiDAR occlusion patterns in forested environments, combining the geometric reconstruction of flight paths with the statistical modeling of ground visibility. Using field data collected at Unzen Volcano, Japan, we first developed an algorithm to retrieve drone flight paths from timestamped pointclouds, enabling post-processing optimization, even when original flight data a
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Volodymyr, Shmyrov, Merkulov Vyacheslav, and Loginov Vasyl. "PRINCIPLE OF MODERNIZATION OF THE AIRCRAFT AN-148, AN-158, AND AN-178 FOR IMPROVING THEIR FUEL EFFICIENCY AND INCREASING COMPETITIVENESS." Eastern-European Journal of Enterprise Technologies 3, no. 1 (105) (2020): 6–16. https://doi.org/10.15587/1729-4061.2020.204780.

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In order to create new competitive advantages for the medium-haul aircraft An-148 and An-158, the application of the D-436-148FM engine for these aircraft has been considered. This would expand the operational range of aircraft flights, reduce noise on the ground, and harmful emissions from the engine. A distinctive feature is the achieved thrust of the engine D-436-148FM undera maximum emergency mode, 19.4 % higher than the thrust of the engine D-436-148D. That was made possible by optimizing the fan, improving the combustion chamber, and turbine cascade. The required amount of bench and
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Potasman, I., O. Rofe, and B. Weller. "Flight-Associated Headaches—Prevalence and Characteristics." Cephalalgia 28, no. 8 (2008): 863–67. http://dx.doi.org/10.1111/j.1468-2982.2008.01601.x.

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Environmental factors in airplanes may precipitate headaches. We conducted a questionnaire-based study among consecutive travellers to determine the rate, severity and duration of flight-associated headaches (FAHA). Of the 906 eligible travellers (mean age 33.3 ± 13.8 years), 22.3% reported headaches at least once per month. FAHA occurred in 52 travellers (5.7%), of whom 34 were women ( P = 0.0023 vs. none FAHA). The duration of pain was 4.0 ± 10.2 h after takeoff and continued for 5.7 ± 14.2 h after landing. Migraine was diagnosed in 19.2% of those with FAHA. The magnitude of headache was 6 ±
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28

MIYATA, Takahiro, and Tomomi KOJO. "419 Flight Characteristics of Pantala flavescens." Proceedings of the JSME Bioengineering Conference and Seminar 2004.17 (2005): 169–70. http://dx.doi.org/10.1299/jsmebs.2004.17.0_169.

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29

Yeadon, M. R., M. A. King, and E. J. Sprigings. "Pre-flight characteristics of Hecht vaults." Journal of Sports Sciences 16, no. 4 (1998): 349–56. http://dx.doi.org/10.1080/02640419808559363.

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30

Cao, Yihua, Guozhi Li, and R. A. Hess. "Helicopter flight characteristics in icing conditions." Aeronautical Journal 116, no. 1183 (2012): 963–79. http://dx.doi.org/10.1017/s0001924000007375.

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Abstract A method to predict the effects of rotor icing on the flight characteristics of a UH-60A helicopter is presented. By considering both natural ice shedding and different types of ice accretion due to local temperature variations on the blade surface, an improved rotor icing model was developed. Next, the effects of icing on rotor force, torque and flapping were incorporated in a nonlinear helicopter dynamic model. Based upon icing design envelopes in cumuliform clouds, trim and stability characteristics were studied. Further development of the helicopter state-space model allowed contr
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Cao, Yihua, Zhenlong Wu, Yuan Su, and Zhongda Xu. "Aircraft flight characteristics in icing conditions." Progress in Aerospace Sciences 74 (April 2015): 62–80. http://dx.doi.org/10.1016/j.paerosci.2014.12.001.

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32

SUN, Ying, Mikhail Yu KUPRIKOV, and Elena L. KUZNETSOVA. "Effect of flight range on the dimension of the main aircraft." INCAS BULLETIN 12, S (2020): 201–9. http://dx.doi.org/10.13111/2066-8201.2020.12.s.19.

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The purpose of the article is to analyze the characteristics of aircraft, including aircraft of the Boeing and Airbus families, as well as to highlight the factors affecting the flight range depending on the dimension of the main aircraft. The possibilities of competition with Boeing and Airbus were considered and options for solving this problem were proposed. Formulas were used to identify the economic excellence of the aircraft and an analysis was made of the distribution of flights and major airports around the globe. A graphical model for the search for the rational appearance of the aero
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Berketova, L., and R. Iginova. "Nutrition on Aircrafts: a Menu Analysis (Part 1)." Bulletin of Science and Practice 6, no. 2 (2020): 170–81. http://dx.doi.org/10.33619/2414-2948/51/17.

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The organization of passenger service for air transport consists not only in the transportation of passengers to their destination, but also in the provision of various types of food, which can include hot meals according to the free choice menu or complete rations on board the aircraft, desserts, drinks. The range of dishes depends on the budget of the airline, season, flight duration, class of service, departure time, principles of healthy eating, national characteristics, specific tastes and age of the passenger. In this paper, the menu of the company Aeroflot — Russian Airlines is consider
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Zirka, Andrey, Mariia Zirka, and Natalia Kadet. "METHODOLOGICAL APPROACH TO THE ASSESSMENT OF SPATIAL AND TEMPORAL PARAMETERS OF AN UNMANNED AERIAL VEHICLE DURING FLIGHT TESTS." Science-based technologies 56, no. 4 (2023): 274–79. http://dx.doi.org/10.18372/2310-5461.56.17126.

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During flight tests of unmanned aerial vehicles (UAVs), the assessment of individual parameters, such as: range and flight duration (spatial and temporal parameters) is associated with the involvement of a significant resource (time, space, material and technical, etc.), which often raises problematic questions regarding their implementation. At the same time, in most cases, the customer usually puts forward fundamental and clear requirements to ensure the required range and duration of the flight. These indicators generally characterize the capabilities of complexes to perform tasks as intend
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Wang, Kang, Yuan Xue, Hongfeng Tian, Miaosen Wang, and Xiaolong Wang. "The Impact of Icing on the Airfoil on the Lift-Drag Characteristics and Maneuverability Characteristics." Mathematical Problems in Engineering 2021 (June 12, 2021): 1–16. http://dx.doi.org/10.1155/2021/5568740.

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Icing has now become an important factor endangering flight safety. This paper takes the icing data of the NACA 23012 airfoil as an example, establishes an icing influence model for real-time simulation based on icing time and aircraft angle of attack, and analyzes the influence of different icing geometry on aircraft characteristics. The two-dimensional interpolation method is used to improve the model of the aircraft’s stall area, which is mainly divided into the correction of the lift-drag coefficient linear area and the stall area and the correction of the aircraft stability derivative and
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LAUK, Peep, Karl-Erik SEEGEL, and Toivo TÄHEMAA. "IMPACT OF VARIABLE GEOMETRY MINIFLAPS ON SAILPLANE FLIGHT CHARACTERISTICS." Aviation 21, no. 4 (2017): 119–25. http://dx.doi.org/10.3846/16487788.2017.1415228.

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Miniflaps (also known as mini-TED, active Gurnay flaps, etc.) located at the wing trailing edge enable to increase wing lift and reduce the aerodynamic drag. Variable geometry miniflaps (VGMF) elaborated at the Estonian Aviation Academy enable to expand the wing area up to 6.5%, when extended, and, at the same time, deflect 16.7 degrees downwards. The use of VGMF is especially promising for reducing the airspeed and sink speed of modern high wing loading sailplanes flying in thermals. The VGMFs were built in cooperation with the Lithuanian company JSC “Sportine Aviacija ir Ko”. They were fixed
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Figat, Marcin, and Agnieszka Kwiek. "Aerodynamic optimisation of the rocket plane in subsonic and supersonic flight conditions." Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering 231, no. 12 (2017): 2266–81. http://dx.doi.org/10.1177/0954410017723672.

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This paper presents the results of a numerical study of the aerodynamic shape of the Rocket Plane LEX. The Rocket Plane is a main part of the Modular Airplane System – MAS; a special vehicle devoted to suborbital tourist flights. The Rocket Plane was designed for subsonic and supersonic flight conditions. Therefore, the impact of the Mach number should be considered during the aerodynamic design of the Rocket Plane. The main goal of the investigation was to determine the sensitivity of the Rocket Plane aerodynamic characteristics to the Mach number during the optimisation of the LEX geometry.
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WEI, Yuan, and Renliang CHEN. "Analysis influence of engine’s dynamic characteristics on helicopter’s flight quality." Xibei Gongye Daxue Xuebao/Journal of Northwestern Polytechnical University 42, no. 5 (2024): 838–46. https://doi.org/10.1051/jnwpu/20244250838.

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This article analyses the influence of an engine’s dynamic characteristics on a helicopter’s flight quality during hover/low speed forward flight. Firstly, based on the power matching relationship between the engine and the helicopter, a helicopter-engine coupling model was established. The torque response, altitude response, and collective yaw coupling characteristic in the ADS-33E-PRF flight quality criteria was used to quantitatively evaluate the influence of the dynamic characteristics. The results indicate that the lag in the engine’s output leads to deterioration in the flight quality of
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Yanagihara, Masaaki, Masashi Shigemi, and Takanobu Suito. "Estimating Aerodynamic Characteristics of Automatic Landing Flight Experiment Vehicle Using Flight Data." Journal of Aircraft 36, no. 6 (1999): 926–33. http://dx.doi.org/10.2514/2.2553.

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Watanabe, Shigeya, Shinji Ishimoto, and Yukimitsu Yamamoto. "Aerodynamic Characteristics Evaluation of Hypersonic Flight Experiment Vehicle Based on Flight Data." Journal of Spacecraft and Rockets 34, no. 4 (1997): 464–70. http://dx.doi.org/10.2514/2.3259.

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GAO, Honggang, Ao HE, Zhenghong GAO, Yang NA, and Yangping DENG. "Flight dynamics characteristics of canard rotor/wing aircraft in helicopter flight mode." Chinese Journal of Aeronautics 32, no. 7 (2019): 1577–87. http://dx.doi.org/10.1016/j.cja.2019.04.002.

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42

Nicholls, David G., and Christopher J. R. Robertson. "Assessing flight characteristics for the Chatham albatross (Thalassarche eremita) from satellite tracking." Notornis 54, no. 3 (2007): 168. https://doi.org/10.63172/809540eaqpte.

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From satellite tracking data, we recognised 5 major flight patterns in the annual cycles of 3 Chatham albatrosses (Thalassarche eremita) tracked in 1997 and 1998: foraging flights while the birds were breeding; eastward and westward migrations across the southern Pacific Ocean; northward migration along the South American coast; and localised foraging at low latitudes off the northwest coast of South America. We hypothesised that the 5 modes of flight indicated different biological activity. The associated speeds, point-to-point distances flown day-1, and other indices of activity were inferre
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Zang, Haipei, Jinfu Zhu, and Qiang Gao. "Deep Learning Architecture for Flight Flow Spatiotemporal Prediction in Airport Network." Electronics 11, no. 23 (2022): 4058. http://dx.doi.org/10.3390/electronics11234058.

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Traffic flow prediction is a significant component for the new generation intelligent transportation. In the field of air transportation, accurate prediction of airport flight flow can help airlines schedule flights and provide a decision-making basis for airport resource allocation. With the help of Deep Learning technology, this paper focuses on the characteristics of flight flow easily disturbed by environmental factors, studies the spatiotemporal dependence between flight flows, and predicts the spatiotemporal distribution of flight flows from the airport network level. We proposed a deep
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vanZanten, M. C., B. Stevens, G. Vali, and D. H. Lenschow. "Observations of Drizzle in Nocturnal Marine Stratocumulus." Journal of the Atmospheric Sciences 62, no. 1 (2005): 88–106. http://dx.doi.org/10.1175/jas-3355.1.

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Abstract In situ and radar data from the second field study of the Dynamics and Chemistry of Marine Stratocumulus (DYCOMS-II) have been used to study drizzle in stratocumulus. Measurements indicate that drizzle is prevalent. During five of seven analyzed flights precipitation was evident at the surface, and on roughly a third of the flights mean surface rates approached or exceeded 0.5 mm day−1. Additional analysis of the structure and variability of drizzle indicates that the macroscopic (flight averaged) mean drizzle rates at cloud base scale with H3/N where H is the flight-averaged cloud de
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Falk, Martin Thomas, and Eva Hagsten. "Characteristics of Middle European Holiday Highfliers." Urban Planning 6, no. 2 (2021): 246–56. http://dx.doi.org/10.17645/up.v6i2.3972.

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This article estimates a count-data model on the flight behaviour of Austrian holiday-makers based on information from a large representative quarterly survey spanning the years 2014–2016. On average, the number of holiday flights ranges between 0.6 and 1.2 per year for residents in the least populated region and the capital, respectively. Results of the estimations reveal that the number of holiday flights is highest for persons with tertiary degrees, of a young age (16–24 years) and capital city residents, while it is lowest for individuals with children and large households. Residents of th
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Alsadik, Bashar, and Fabio Remondino. "Flight Planning for LiDAR-Based UAS Mapping Applications." ISPRS International Journal of Geo-Information 9, no. 6 (2020): 378. http://dx.doi.org/10.3390/ijgi9060378.

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In the last two decades, unmanned aircraft systems (UAS) were successfully used in different environments for diverse applications like territorial mapping, heritage 3D documentation, as built surveys, construction monitoring, solar panel placement and assessment, road inspections, etc. These applications were correlated to the onboard sensors like RGB cameras, multi-spectral cameras, thermal sensors, panoramic cameras, or LiDARs. According to the different onboard sensors, a different mission plan is required to satisfy the characteristics of the sensor and the project aims. For UAS LiDAR-bas
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Windusari, A. A. Ayu Diah, and Hisar Manongam Pasaribu. "A Statistical Review of European Carriers’ Flight Delays and the Assessment of Delay Factors." Warta Penelitian Perhubungan 35, no. 2 (2024): 172–88. http://dx.doi.org/10.25104/warlit.v35i2.2313.

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Disruption is an inherent risk that might arise because of the complexity and dynamic nature of air transport operations. In the aviation business, disruption can happen for a variety of reasons, including poor weather, strikes, and political factors. This study aims to analyse flight delays that European airlines encounter and assess the dependencies between different operation parameters through correspondence analysis in contingency tables that are visually represented using correspondence maps. This study examined data from selected European airlines between 2018 and 2022, which contained
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Berketova, L., and R. Iginova. "Nutrition on Aircrafts: a Menu Analysis." Bulletin of Science and Practice 6, no. 2 (2020): 170–81. https://doi.org/10.33619/2414-2948/51/17.

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The organization of passenger service for air transport consists not only in the transportation of passengers to their destination, but also in the provision of various types of food, which can include hot meals according to the free choice menu or complete rations on board the aircraft, desserts, drinks. The range of dishes depends on the budget of the airline, season, flight duration, class of service, departure time, principles of healthy eating, national characteristics, specific tastes and age of the passenger. In this paper, the menu of the company Aeroflot — Russian Airlines
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Pham, Duy Long, Yasuto Ito, Ryuichi Okada, Hidetoshi Ikeno, and Michimasa Yamasaki. "Females invest more energy in flight: flight characteristics of Platypus quercivorus (Murayama) revealed by a flight mill." Journal of Forest Research 26, no. 2 (2021): 143–51. http://dx.doi.org/10.1080/13416979.2021.1872761.

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Thomson, D. G., and R. Bradleyt. "Prediction of the dynamic characteristics of helicopters in constrained flight." Aeronautical Journal 94, no. 940 (1990): 344–54. http://dx.doi.org/10.1017/s0001924000023307.

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Abstract In circumstances where a pilot is forced to follow a specified flight path, such as during a landing approach or in nap-of-the-earth conditions, it will be shown that there is an apparent modification of the helicopter's stability characteristics. This effect is identified in helicopter flight data from nap-of-the-earth agility trials where oscillations are observed in the time histories of the pilot's control inputs and the vehicle's response. A technique of predicting the nature of these oscillations using a linearised helicopter mathematical model is developed. The model is inverte
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