Description: Longitudinal stability in drones refers to the ability of the unmanned aerial vehicle to maintain its flight trajectory along its length, that is, in the axis that runs from the front to the back of the drone. This feature is crucial for ensuring controlled and safe flight, as it allows the drone to maintain a stable attitude during takeoff, flight, and landing. Longitudinal stability is achieved through appropriate aerodynamic design and control systems that continuously adjust the position and angle of the propellers or rotors. A drone with good longitudinal stability can withstand external disturbances, such as gusts of wind, and maintain its course without significant deviations. This not only improves navigation accuracy but is also fundamental for applications that require a high degree of stability, such as aerial photography or monitoring and inspection tasks. In summary, longitudinal stability is an essential aspect of drone design and operation, directly influencing their performance and effectiveness in various applications.