The aircraft lift demonstration device is an intuitive teaching instrument designed specifically for physics and aviation courses in middle schools and universities. It generates real lift on the wing model through controllable airflow, helping students "see" and quantify Bernoulli's principle, thus gaining a profound understanding of why airplanes can fly. Typical teaching process: Phenomenon observation: Students first guess whether the wings will rise; Experimental verification: Turn on the fan, raise the wings, and students record the phenomenon; Theoretical explanation: Teachers combine real-time lift data to derive Bernoulli's equation; Expand discussion: Change wind speed, wing angle of attack, and analyze the reasons for changes in lift.