At the least some throttle needs to be maintained to keep the drone from the air. Adjusting the yaw Command spins the drone all over its vertical axis. Pitch angles forward and backward while roll tilts left and proper. With a combination of these controls, almost any flying is possible https://gaily715vfp1.ltfblog.com/27758173/java-institute-for-advanced-technology-kurunegala-things-to-know-before-you-buy