The tiltrotor aircraft consists of three primary flight modes, which are helicopter mode in low forward speed flight, airplane high and conversion mode. This paper presents an active disturbance rejection controller for flight. First, a dynamics model is developed verified. Then, control laws, designed via the (ADRC) sliding (SMC) techniques, proposed with uncertainties external disturbance, es...

the limits of airplane performance. Recent accidents and incidents have resulted in new flight crew training programs, which in turn have raised interest in AOA in commercial aviation. Awareness of AOA is vitally important as the airplane nears stall. It is less useful to the flight crew in the normal operational range. On most Boeing models currently in production, AOA information is presented...

− Since the GPS/MET mission was launched in 1995, an extensive dataset of spaceborne GPS radio occultation (RO) soundings have been derived and compared to in-situ measurements and numerical model analyses. The launch of the Constellation Observing System for Meteorology Ionosphere and Climate (COSMIC) introduces several thousand more profiles daily, which has attracted much wider attention in ...

(j) Engine condition monitoring. (1) The certificate holder must establish an engine-condition monitoring program to detect deterioration at an early stage and to allow for corrective action before safe operation is affected. (2) This program must describe the parameters to be monitored, the method of data collection, the method of analyzing data, and the process for taking corrective action. (...