What is the forward force produced by the power plant/propeller or rotor that sets a UA in motion?

Thrust is the forward force generated by the power plant, be it a propeller or rotor, that propels an Unmanned Aircraft (UA) in motion. Understanding thrust is crucial as it counteracts drag, allowing the UAV to achieve forward velocity. It is a fundamental principle of aerodynamics: when thrust exceeds drag, the aircraft accelerates forward.

Every UAS operates on the relationship between these forces to maintain stable flight. Thrust is instrumental in not only initiating movement but also executing maneuvers and maintaining altitude. While lift refers to the force that holds the aircraft in the air, and weight acts as the gravitational pull downward, thrust is essential for forward motion. Therefore, recognizing thrust's role is vital for understanding how unmanned systems operate effectively in various environments.