An experimental study was performed to compare the annoyances from civil-aircraft noise, military-aircraft noise, railway noise, and road-traffic noise. Two-way within-subjects designs were applied in this research. Fifty-two subjects, who were naive listeners, were given various stimuli with varying levels through a headphone in an anechoic chamber. Regardless of the frequency weighting networ...

Measurement of aircraft attitude is a necessary step for the autonomous control of the aircraft. Autonomous aircraft are useful for a range of military and civilian purposes. A method of very low computational complexity is presented that allows the pitch and roll angles of an aircraft to be measured onboard an unmanned aircraft from real-time video of the horizon. This method can be used for m...

The co-operation of multiple types of military aircraft has become one of the basic features in air combats. In order to improve comprehensive support capability, how to optimize the resources distribution of ground support equipment is an important content of the air force stations modernization construction. The uneconomic and unreasonable reasons of allocation approach are analyzed based on ...

Remotely piloted aircraft (RPA), commonly referred to as "drones," have emerged over the past decade as an innovative warfighting tool. Given there is a paucity of empirical research assessing drone operators, the purpose of this study was to assess for the prevalence of PTSD symptoms among this cohort. Of the 1084 United States Air Force (USAF) drone operators that participated, a total of 4.3...

Transport. Increasingly over the last few years, investigations have also been undertaken for insurance loss adjusters and as expert witnesses in litigation cases. While assisting in the investigation of accidents to both civil and military aircraft is an important aspect of the work, there are many examples of component failures and defects that were detected before an accident could occur, i....

The evolving network needs of both commercial and military aircraft are expanding the requirements from slow speeds (1 Mbps) to over 1 Gbps for many new aircraft designs driven primarily by advanced video technology. Low-cost Ethernet switch technology is a key enabler for advanced aircraft system interconnection. Our research focuses on the evaluation of several Gigabit Ethernet (GE) COTS swit...

This paper presents an overview of several missions that exploit the capabilities of a Low Energy Nuclear Reaction (LENR) aircraft propulsion system. LENR is a form of nuclear energy and potentially has over 4,000 times the energy density of chemical energy sources. It does not have any harmful emissions or radiation which makes it extremely appealing. The global reliance on crude oil for aircr...

Unmanned aerial vehicles (UAVs) are a critical component of many military operations. Over the last few decades, the evolution of UAVs has given rise to increasingly smaller aircraft. Along with the development of smaller UAVs, termed mini UAVs, has come issues involving the endurance of the aircraft. Endurance in mini UAVs is problematic because of the limited size of the fuel systems that can...