Reporting verbs are important in news articles on controversial events or issues because of the need to present one’s position topic at least indicate attitudes sources cited articles. The study investigated usage reporting MH370 and MH17 airplane catastrophe Malaysian English online newspapers. aspects analysed were for speaker stance writer stance. A total 80 catastrophes taken from tw...

Wind has a significant effect on the control of fixed-wing unmanned aerial vehicles (UAVs), resulting in changes in their ground speed and direction, which has an important influence on the results of integrated optimization of UAV task allocation and path planning. The objective of this integrated optimization problem changes from minimizing flight distance to minimizing flight time. In this s...

The construction of random distributions given by L. Dubins and D. Freedman [Proc. Fifth Berkeley Symposium Math. Statist. Probl., vol. 2 (1967), 183-214.] defines a mapping μ 7→ Pμ, where μ is a probability measure (“base” measure) on the unit square S = [0, 1]2, and Pμ is a probability measure on the space of all probability distributions on [0, 1]. Dubins and Freedman asked whether the mappi...

This study examines the usefulness of providing cockpit automation training to career-minded pilots using automation equipment commonly found in small training airplanes. After mastering a set of tasks and maneuvers of varying difficulty using a small-airplane GPS navigation computer, autopilot, and flight director system, eight student pilots were then tested on their ability to complete a sim...

Billings (1996) and other researchers (e.g., Vakil, Hansman, Midkiff, & Vaneck, 1995) have concluded that pilot models of flight automation systems are incomplete and that these models cause operation and training problems (e.g., Mangold & Eldredge, 1995). Sherry and Polson (in preparation) describe a complete model of the avionics. This report summarizes that model and its application to the d...

A quasi-tailless flight investigation was launched using the X-31A enhanced fighter maneuverability airplane. In-flight simulations were used to assess the effect of partial to total vertical tail removal. The rudder control surface was used to cancel the stabilizing effects of the vertical tail, and yaw thrust vector commands were used to restabilize and control the airplane. The quasi-tailles...