Features The rubber band powered aviation model, a biplane glider reconnaissance aircraft, utilizes the principles of rubber band elasticity and fluid mechanics to achieve takeoff and flight. It has a simple and elegant design, refined and sturdy materials, and a reasonable structural design. The fuselage adopts a parallel double bar shape, and the two front large wings are tightly clamped by the mother clip, making it difficult to loosen and scatter. Purpose requirements: 1. Understand the flight principle and historical background of "rubber powered aircraft" 2. Master the debugging and flight skills of "rubber powered aircraft" Flight Guide: A View the model Looking directly at the head of the model, the installed model should be free of distortion and symmetrical on both sides. B Model adjustment When there is no wind or a gentle breeze, gently throw the model from the center of gravity position of the handheld machine head. Adjust the distance between the wing platform and the front and rear according to the flight attitude of the model. Wave like flight indicates a light head, and the wing platform needs to be moved backwards; Downward dive indicates head weight, and the wing platform needs to be moved forward. C powered flight First, turn the propeller clockwise for about 15 turns, then hold the machine with your right hand and hold the propeller with your left hand, gently pushing it out in the wind. Observing the flight trajectory, a hovering upward posture is preferred. If the hovering radius of the model is found to be too small, make a small incision at the base of the vertical tail and bend it in the opposite direction. After the flight attitude is normal, fly with high power by circling around the rubber band 200-220 times. Specifications: Product Name: Rubber band biplane Product material: environment-friendly foam+imported rubber band+ABS plastic+wooden strip Color: 4 colors (random) Product size: 50X43 (CM) reminder: *This product needs to be assembled by oneself. Please be cautious before making a purchase! *When assembling, the edges of the four sides of the bamboo frame are usually ground down with a knife, and then inserted underneath in a smooth state. Do not force too hard, or the foam wing may be crushed! Assembling models exercises one's hands-on ability. It is recommended that children assemble under the guidance of their parents! *After installation, it cannot be disassembled. Package Include: 4x Rubber Band Powered Airplane Kit