Definition of waiver. 1  1 : the act of intentionally relinquishing or abandoning a known right, claim, or privilege; also : the legal instrument evidencing such an act.
Roll, pitch and yaw. Roll, pitch and yaw are rotations along the natural axes of the helicopter (or any aircraft). A rolling movement is where the helicopter rotates along a line along its length using lateral cyclic inputs (aileron), eventually turning from right way up to inverted while maintaining the helicopter's heading.
The RQ-11B Raven (Raven B) is a lightweight and low-altitude remote-controlled unmanned air vehicle (UAV) system designed and developed by AeroVironment, US. The RQ-11B Raven is powered by a single Aveox 27/26/7-AV electric motor. The engine is manufactured by US-based Aveox.. Developed for the US Armed Forces, the UAV performs intelligence, surveillance, target acquisition and reconnaissance (ISTAR) operations. It is also known as a man-portable UAV.