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The Classroom Is Dead
Published in Matthew J. W. Thomas, Training and Assessing Non-Technical Skills, 2017
For commercial aviation, the majority of these engineering and technical issues had been resolved by the early 1970s, and the modern commercial jet airliner was both safe and reliable. During the 1970s, the international accident rate in commercial aviation dropped to an average of approximately three accidents per million departures, from the 10 per million departures in the 1960s.2 The jet era brought rapid advances in technology, and in turn, safety. However, accidents still continued to occur. The spectre of so-called ‘pilot error’ became the focus of attention, and again, aviation safety was no longer a domain primarily for engineers and their technical solutions.
Review of Sequences and Infinite Series
Published in Russell L. Herman, An Introduction to Fourier Analysis, 2016
The average speed of a large commercial jet airliner is about 500 mph. If you flew for an hour (measured from the ground), then how much younger would you be than if you had not taken the flight, assuming these reference frames obeyed the postulates of special relativity?
An exploratory study on the effects of human, technical and operating factors on aviation safety
Published in Journal of Transportation Safety & Security, 2019
Joyce M. W. Low, Kum Khiong Yang
Other organizations that seek to collate data on air crashes and develop airlines safety indices include AirSafe, ICAO, and Jet Airliner Crash Data Evaluation Centre (JACDEC). For example, AirSafe.com provides a fact-gathering website (run by a former airline safety analyst in the United States) to provide consumers an indication of an airline's safety level by analyzing its historical performance. Airline safety and security information provided in the website includes crashes by airlines, aircraft models, regions, and regulations pertaining to flying with toys, batteries, computers and others. ICAO defines a trend indicator in the form of an adaptive moving average using analysis tools based on the theory of Bollinger Bands. In this computation, the accident rate is defined as a ratio between the number of accidents and the number of flights conducted during the same year. JACDEC establishes the JACDEC index (2014) for 60 airlines based on annual safety calculations that include all hull loss accidents and serious incidents in the last 30 years of operations relative to the revenue passsenger kilometers (RPK) accumulated in the same time. The index also takes into account the international safety benchmarks such as the IOSA Audit and the Universal Safety Oversight Audit Program (USOAP) country factor, and a time-weighted factor which increases the impact of recent accidents and weakens the impact of past accidents. Although different organizations have provided safety indices of different airlines, Skytrax (2017) suggests that an accurate Airline Safety Rating is impossible to develop.
Modelling strategies for numerical simulation of aircraft ditching
Published in International Journal of Crashworthiness, 2018
The simulations are based on an experimental test conducted by NACA [19] aimed to assess the response of a generic scale-size airplane during a controlled landing on water. According to the scaling law based on the Froude number similarity, the results obtained from these simulations can be extended to a wide range of full-scale ditching scenarios. For example, by assuming a scale factor of 1/20 as reported in Table 3, the results obtained from the simulation of the scaled aircraft are representative of a ditching of a twin-engine small commercial jet airliner.