That's cool! This reminds me of my experience in middle school when I used cardboard, bamboo sticks and rubber bands to make power paper airplanes, and the problem at that time was that in a short time after the plane was released, the propeller in front of the plane was driven by the rubber band to rotate very quickly, and if it could spin slower and lasts longer, the plane could fly farther, but I have not found a solution to this problem until now.