Academic literature on the topic 'Total Flight-Hours'

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Journal articles on the topic "Total Flight-Hours"

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Wheeler, Brooke, Jessica Mumfrey, and Drew Dolan. "Examining Part 141 flight training: Flight hours and days to instrument rating." Journal of Management and Engineering Integration 14, no. 2 (2021): 43–49. http://dx.doi.org/10.62704/10057/24780.

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Understanding the efficiency of flight training in collegiate programs is essential as Part 141 training aims to create safe pilots with lower training times. The purpose of this study was to determine whether there is a relationship between the total flight hours and the total calendar days it takes to complete the FAA Part 141 instrument flight training course. We used a correlational design to analyze the relationship between the variables; the records used were those who had enrolled in the instrument course and successfully passed the instrument check ride. Examining the Part 141 flight s
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Fazlin Khuzaima, Retno Wibawanti, Agus Sugiharto, Wawan Mulyawan, M.  Ilyas, and Dewi S. Soemarko. "Relationship between Total Flight Hours and Individual Factors with Low Back Pain in Indonesian Military Helicopter Pilots." Indonesian Journal of Community and Occupational Medicine 3, no. 1 (2023): 9–16. http://dx.doi.org/10.53773/ijcom.v3i1.89.9-16.

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Introduction: Helicopter pilots are potentially at risk of Low Back Pain (LBP) and are twice as likely as fighter pilots to experience it. Helicopter pilots’ LBP is caused by a combination of risk factors: engine and rotor vibration, ergonomic risks due to cockpit design, static seating position due to operations, and individual factors. These factors are incorporated into cumulative aviation risk exposure, which can be measured by total flight hours. The prevalence of LBP in Caucasians is high, at 50.5%-92%. However, there has not been any research on Indonesian military helicopter pilots who
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He, Peng, and Ruishan Sun. "Research on Cross-Correlation, Co-Integration, and Causality Relationship between Civil Aviation Incident and Airline Capacity in China." Sustainability 14, no. 9 (2022): 4999. http://dx.doi.org/10.3390/su14094999.

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Aviation incident is a crucial approach for accident prevention and safety improvement. It is of remarkable practical significance to clarify the relationship between aviation incidents and airline capacity. In the present study, time-series analysis methods, such as cross-correlation, co-integration, and causality analysis are employed to explore the longitudinal relationship between airline capacity (measured by flight hours) and aviation incidents in seven different categories in China from 1994 to 2020. The obtained results indicate the existence of a substantial positive correlation betwe
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Tisera, Simplisius Cornelis, Amilya Agustina, and Dewi Sumaryani Soemarko. "Total Flight Hours and Other Factors Associated with Hyperuricemia in Civilian Pilots." Aerospace Medicine and Human Performance 93, no. 1 (2022): 22–25. http://dx.doi.org/10.3357/amhp.5785.2022.

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BACKGROUND: In the aviation world, hyperuricemia can endanger flight safety through the risk of incapacitation, either associated with gout disease or associated with an increased risk of cardiovascular disease. This study aims to determine the prevalence of hyperuricemia in civil pilots in Indonesia and the identification of risk factors for hyperuricemia in civil pilots in Indonesia.METHODS: The study used a cross-sectional method from the medical records of civil pilots at the Aviation Medical Center, Jakarta, who were examined on 1 November 2019 through 30 April 2020. Data collected from m
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Nuralfilail, Zakiah Nada, Pritha Maya Savitri, Niniek Hardini, et al. "FLIGHT HOURS AND BMI AGAINST TUC IN HYPOBARIC CHAMBER ALTITUDE 25.000 FEET." Journal of Vocational Health Studies 8, no. 1 (2024): 7–12. http://dx.doi.org/10.20473/jvhs.v8.i1.2024.7-12.

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Background: Time of Useful Consciousness (TUC) is the time interval a person can survive carrying out flight duties due to a decrease in oxygen pressure and the point at which there is a decrease in the level of consciousness. The TUC time interval is influenced by various factors including Body Mass Index (BMI) and flying hours which affect the increase in the duration of the body's exposure to hypoxic conditions in pilots. Purpose: This research was conducted to determine the relationship between total flight hours and BMI on TUC. Method: This research employed observational analytic researc
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Nurwiliani, Lia, Norma Nuromah, and Ratih Ayu Chusnul Chotimah. "The Relationship Between Flight Hours Duration And Menstruation Disturbances In Flight Attendant." Journal Midwifery Jurusan Kebidanan Politeknik Kesehatan Gorontalo 10, no. 1 (2024): 1. https://doi.org/10.52365/jm.v10i1.630.

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A Flight attendant has a higher risk of menstrual disturbances than a non-flight crew. Moreover, a flight attendant has high work pressure with flight duration of 225 hours (3 months) which will cause work stress and menstrual disturbance. The purpose of this study was to find out the relationship between flight hours and menstrual disturbances in flight attendants. This research method is quantitative study with a cross-sectional approach and was carried out to 51 respondents. The sampling technique used was total sampling, while the data collection used interview guidelines. In addition, the
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Mędrzycka, Justyna, Grzegorz Rotuski, Radosław Różycki, and Joanna Gołębiewska. "Retinal Vascularity in Military Pilots in Relation to the Type of Aircraft, Flight Altitude and Total Hours of Flight." Journal of Clinical Medicine 14, no. 8 (2025): 2671. https://doi.org/10.3390/jcm14082671.

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Background: The aim of the study was to assess retinal circulation in military pilots, as well as to determine the relationship between the type of aircraft, flight altitude, total hours of flight time and parameters of retinal circulation, using OCT angiography (OCT-A). Methods: This cross-sectional study enrolled 44 military pilots and 44 controls. The inclusion criteria encompassed healthy adult men. Due to the fact that military pilots cannot suffer from any vision defects or any other eye disease, the exclusion criteria concerned the control group and included refractive error exceeding −
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Han, Bok-Soon, Eun-Hi Choi, and Min-Seong Kim. "Association of Total Flight Hours and Health Conditions with Sick Leave Use Among Civilian Pilots." Aerospace Medicine and Human Performance 96, no. 1 (2025): 31–38. https://doi.org/10.3357/amhp.6469.2024.

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INTRODUCTION: In-flight medical incapacitation jeopardizes flight safety. To reduce such breakdown episodes, airlines have implemented a sick leave system. This study aimed to examine the association of total flight hours and health status with sick leave use among civilian pilots in South Korea and to identify the demand for a health promotion program. METHODS: For data collection, an online survey was conducted between August–November 2018, involving pilots of nine civil airlines in South Korea. A total of 456 pilots responded, of which data from 6 were excluded due to missing items; 450 pil
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Han, Bok-Soon, Eun-Hi Choi, and Min-Seong Kim. "Association of Total Flight Hours and Health Conditions with Sick Leave Use Among Civilian Pilots." Aerospace Medicine and Human Performance 96, no. 1 (2025): 31–38. https://doi.org/10.3357/amhp.6469.2025.

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INTRODUCTION: In-flight medical incapacitation jeopardizes flight safety. To reduce such breakdown episodes, airlines have implemented a sick leave system. This study aimed to examine the association of total flight hours and health status with sick leave use among civilian pilots in South Korea and to identify the demand for a health promotion program. METHODS: For data collection, an online survey was conducted between August–November 2018, involving pilots of nine civil airlines in South Korea. A total of 456 pilots responded, of which data from 6 were excluded due to missing items; 450 pil
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Petrikovsky, B., M. Terrani, and L. Sichinava. "Transatlantic Air Travel in the Third Trimester of Pregnancy: Does It Affect the Fetus?" American Journal of Perinatology Reports 08, no. 02 (2018): e71-e73. http://dx.doi.org/10.1055/s-0038-1641584.

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AbstractMost commercial airlines allow pregnant women to fly up to 36 weeks of gestation. Available information suggests that noise, vibration, and cosmic radiation present a small risk for the pregnant air traveler. The goal of the study was to assess the possible effect of transatlantic flights on the condition of the third-trimester fetus. In total, 112 patients were recruited into the study between January 2005 and June 2016. All underwent a transatlantic flight in the third trimester of pregnancy. All underwent nonstress test before and within 12 hours after the transatlantic flight, and
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Book chapters on the topic "Total Flight-Hours"

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B. Buila, Nathan, Gilbert K. Kabanda, Elysee M-C. Munyoka, Jean-Marc B. Bantu, and Jean René M’Buyamba-Kabangu. "Risk Factors for Cardiovascular Diseases in Aircrew." In Risk Factors for Cardiovascular Disease. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.99905.

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The relation of atherosclerotic cardiovascular disease (ASCVD) to not only traditional but also new and emergent risk factors has been assessed in aircrew. Total flight hours (TFH), high altitude and weightlessness exposure have been accounted among traditional risk factors for CVD among the aircrew. The risk factors do not perform in loneliness. To predict the 10 years global CV risk, several scores are being applied either based on traditional CVD risk factors only or also including new and emergent risk factors. To prevent aircrew from developing CVD, one should focus on the control of beha
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Conference papers on the topic "Total Flight-Hours"

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Rovedatti, Giulia, Paolo Marguerettaz, Francesco Battaini, Bram Renier, and Andrea Ragazzi. "Estimation of Height-Velocity Dual Engine Failure Diagram for a Twin-Engine Helicopter through Simulated Pilot-in-the-Loop Manoeuvres." In Vertical Flight Society 80th Annual Forum & Technology Display. The Vertical Flight Society, 2024. http://dx.doi.org/10.4050/f-0080-2024-1216.

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As per certification requirements, for a large rotorcraft that does not meet the Category A requirements, the Height-Velocity (HV) avoid region must be determined in total power failure condition. The development of a digital twin representative of the real rotorcraft behaviour allows to reduce flight testing hours and to increase flight tests safety, especially in such critical conditions, thus decreasing risks and costs. In this work, an extensive simulation activity has been carried out to generate HV charts for a medium twin-engine helicopter in case of loss of both engines. An in-house so
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Abbott, W. H. "Corrosion Monitoring of Air Force Field Sites and Effects of Lubrication on Corrosion Inhibition." In CORROSION 2000. NACE International, 2000. https://doi.org/10.5006/c2000-00713.

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Abstract Work has been in progress for several years to directly measure the corrosive severity of a variety of Air Force bases worldwide. The work has been done for several very diverse reasons. One has been in support of studies to examine the effects of lubricants/CPCs on avionics reliability using the F-16 aircraft as the test vehicle. In this case, corrosion monitoring has been done at ground level to document the external conditions in which the aircraft are based. A second reason has been to provide a test for current mathematical models which attempt to predict corrosion rates based on
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Decker, Ryan, Andrew Baines, Dave Carlson, James Kooiman, Keith Stanney, and Doug Wolfe. "Affordable Design and Manufacturing of the V-280 Wing." In Vertical Flight Society 73rd Annual Forum & Technology Display. The Vertical Flight Society, 2017. http://dx.doi.org/10.4050/f-0073-2017-12100.

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The development of Bell's third-generation tiltrotor, the V-280, places great focus on achieving low cost and robust design simplicity and is demonstrated on the Joint Multi-Role (JMR) Air Vehicle Concept Demonstrator (AVCD). The design and manufacture of the V-280 AVCD wing structure is an example that achieves significant recurring and development cost savings through the infusion of Design for Manufacturing (DFM) principles, advanced materials, robust manufacturing processes, and low-cost developmental tooling. To drive simplicity through all aspects of the design, the V-280 AVCD wing emplo
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Yoo, Donghyun, Bill Deng Pan, Dennis Vincenz, and Dahai Liu. "Investigating Relationships Between First Solo Hours and Overall Flight Training Performance for Part 141 Flight Students." In 16th International Conference on Applied Human Factors and Ergonomics (AHFE 2025). AHFE International, 2025. https://doi.org/10.54941/ahfe1006488.

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Advancing to a professional pilot career involves successfully completing key flight training milestones, specifically obtaining the Private Pilot License (PPL), Instrument Rating (IR), and Commercial Pilot License (CPL). This study investigated how the number of flight hours needed to achieve the first solo flight correlates with overall flight training performance indicators, such as the total flight hours required to complete each licensing course and practical test outcomes, including whether students passed on the first attempt. Data from a Part 141 flight school in Florida was analyzed u
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Hewitt, John, and Dr Loan. "Appropriate Calculation of Risk per Flight Hour for Rotorcraft Safety Risk Management." In Vertical Flight Society 76th Annual Forum & Technology Display. The Vertical Flight Society, 2020. http://dx.doi.org/10.4050/f-0076-2020-16347.

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Quantitative Risk Assessment has become essential in rotorcraft safety risk management. Measures of risk include Cumulative Fleet Risk (also called Risk Factor), Risk per Flight, and Risk per Flight Hour. Each measure applies to a different situation and can produce the same or different predictions of future risk. Risk for a large fleet of aircraft might be accurately predicted by Cumulative Fleet Risk, whereas Risk per Flight or Risk per Flight Hour might be best for a small fleet of rotorcraft, a flight test program, or a fleet with low flight hours. Calculating risk per flight hour seems a
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Russom, Dennis, Jeffrey Patterson, and Ivan Pineiro. "Analysis of U.S. Navy Rolls Royce 501-K34 Turbine Engine Removals 2008 to 2018." In ASME Turbo Expo 2019: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/gt2019-91535.

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Abstract The Rolls Royce 501-K34 gas turbine engine serves as the prime mover in the Ship Service Gas Turbine Generators (SSGTGs) of the U.S Navy’s USS ARLEIGH BURKE (DDG 51) Class Flight I and Flight II ships. At the time of this writing, there are 65 ships and 195 shipboard 501-K34 turbine engines which operate a total of about 400,000 hours per year. Engines periodically require removal from ships for depot repair. This paper discusses the guidelines that govern the removal process then discuss the 156 engine removals that occurred between January 2008 and November 2018.
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Stanzione, Kaydon, Daniel Schrage, and Apinut Sirirojvisuth. "Jaunt: Design, Build, and Test of an eVTOL Aircraft for Urban Air Mobility." In Vertical Flight Society 75th Annual Forum & Technology Display. The Vertical Flight Society, 2019. http://dx.doi.org/10.4050/f-0075-2019-14492.

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Jaunt Air Mobility LLC is developing an all-electric Vertical Take-off and Landing (VTOL) aircraft suitable for Urban Air Mobility (UAM) and On-Demand Mobility (ODM) markets. Salient features of Jaunt include the quietest, safest, and most efficient hovering and cruise flight air vehicle than any other configuration suitable for UAM missions. Jaunt represents a Reduced Rotor Operating Speed Aircraft (ROSA™) with core technologies proven in over 250 hours of successful demonstration flights. Jaunt represents the metamorphosis of the best features available from helicopters and fixed-wing airpla
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Uehara, Daiju, Larry Matthies, and Jayant Sirohi. "Flight Power Modeling of VTOL Aircraft for Exploration of Titan." In Vertical Flight Society 75th Annual Forum & Technology Display. The Vertical Flight Society, 2019. http://dx.doi.org/10.4050/f-0075-2019-14495.

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Flight power and energy requirement models were developed for Titan Aerial Daughtercraft (TAD) mission concepts, in which a small-scale (e.g. ≤ 10 kg) VTOL aircraft would conduct multiple sorties on Titan from a mothership (lander or balloon), recharging batteries from a radioisotope power source (RPS) on the mothership between sorties. The current study considers two design configurations for the TAD, a quadcopter and a tailsitter, and examines potential f light duration and range for lander-based scenarios, as well as allowable payload mass fraction and surface exploration range for balloon-
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Csavina, Frank L., and Russell K. Denney. "A Global Approach in Evaluating Inlet/Engine Compatibility." In ASME 1991 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1991. http://dx.doi.org/10.1115/91-gt-402.

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Modern weapon systems demands are forcing engine designers to draw a finer line in their trades between performance and compatibility. Next generation smart engine controls also have the flexibility to optimize (real-time) either performance or compatibility knowing the flight condition and aircraft attitude. This paper presents a global statistical approach for the evaluation of installed aircraft/engine compatibility. The proposed methodology uses a Monte Carlo simulation to analyze the complex interaction of randomly occurring destabilizing events. Planned or projected aircraft operational
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Anderson, Kaare, Mark Ray, and Darren Jackson. "Optical Ice Detector: Measurement Comparison to Research Probes." In International Conference on Icing of Aircraft, Engines, and Structures. SAE International, 2023. http://dx.doi.org/10.4271/2023-01-1428.

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<div class="section abstract"><div class="htmlview paragraph">The Collins Aerospace Optical Ice Detector is a short-range polarimetric cloud lidar designed to detect and discriminate among all types of icing conditions with the use of a single sensor. Recent flight tests of the Optical Ice Detector (OID) aboard a fully instrumented atmospheric research aircraft have allowed comparisons of measurements made by the OID with those of standard cloud research probes. The tests included some icing conditions appropriate to the most recent updates to the icing regulations. Cloud detection
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