stem science laboratory toys/teaching aids homemade c919 rubber band power glider aircraft model model

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Product Name: KX192- C919 Rubber Band Glider
Model Number: KX1922
Size: 610*600*210, packaging size: 440*140*35 mm
Weight: Approximately 100g
Material: Polystyrene foam + rubber bands + plastic components...
Color: Green, Blue
Battery usage: No
Packaging: 100 pcs
Box dimensions: 600*450*550mm

This aircraft model is recommended for model airplane competitions due to its large size and excellent flight performance. The wings are made of lightweight EPS material, and the new propeller features a double connection body, which facilitates takeoff. Transparent glue can be used to reinforce the wings before installation. If the wooden strips are too tight and cannot fit in, use sandpaper or a knife to gently smooth them out. During test flight, face the propeller, hold one hand under the wing with the other hand rotating the propeller clockwise for 100–150 revolutions, then release it at an angle of 45 degrees upward. If it moves upward, adjust the wing backward appropriately; if it moves downward, adjust the wing forward accordingly.

Benefits of flying model aircraft:
Children's self-assembled educational toys stimulate their innate desire to explore and grow, create a learning environment, provide space for activities and exploration, and help children maximize their potential. The right choice offers children excellent opportunities for learning, and its impact will last a lifetime. When parents play with children and provide appropriate guidance, it enables them to acquire knowledge through play.

Scientific Insights:

The reason why aircraft wings generate lift is that in a fluid system, such as air flow or water flow, the faster the flow speed, the lower the pressure generated by the fluid. This is the "Bernoulli's Principle," discovered in 1738 by Daniel Bernoulli, known as the "father of fluid mechanics." The air flow velocity on the upper surface of the wing is greater than that on the lower surface, and the pressure generated by the airflow below the wing is greater than that above it. Thus, the aircraft is "held up" by this large pressure difference, and then it takes off.
Let’s get started and build a rubber band airplane together.

Scientific Production:

1. Prepare the materials required for the experiment, such as propellers, wings, fuselage, tail fins, etc.
2. Follow the manual instructions accordingly.
3. After installation, proceed with debugging.

Scientific Principles:

The physical principle of the rubber band-powered aircraft is that when the rubber band is rotated in the opposite direction and pulled (doing work on the rubber band), it gradually stretches. The rubber band stores elastic force for contraction, and this force drives the propeller to rotate (the rubber band does work on the propeller), allowing the aircraft to fly. The working mechanism of the propeller and the aircraft relies on principles of aerodynamics.

Scientific Exploration:

What is the scientific principle of the rubber band plane?


Aircraft flight technical support
1. Review the model
When viewed directly from the head of the model, the properly installed model should be free of distortion and symmetrical on both sides.
2. Model Adjustment
In conditions of no wind or light wind, gently throw the model by adjusting the center of gravity of the handheld head. Adjust the distance between the wing platforms based on the flight posture of the model. Wavy flight indicates a light head, requiring the wing platforms to be moved backward; downward dive indicates a heavy head, requiring the wing platforms to be moved forward.
III. Power Flight
First, rotate the propeller clockwise about 15 turns, then hold the aircraft with the right hand and support the propeller with the left hand, gently pushing it forward against the wind. Observe the flight trajectory; a circling ascent attitude is ideal. If you notice the circling radius of the model is too small, make a small cut at the base of the vertical tail and bend it in the opposite direction. Once the flight posture is normal, perform 200–220 turns around the rubber band for high-power flight. The rubber band should generally be straight with a slight relaxation. I believe both oiling and not oiling are acceptable; oiling makes it smoother to turn, but reduces the rubber band's lifespan. The key issue is adjusting the aircraft’s center of gravity. To do this, do not tighten the rubber band; instead, throw the aircraft directly from your hand in a windless environment. The aircraft should neither tilt upward nor downward significantly. If it tilts upward, add weight to the nose. Also, ensure the aircraft does not roll sideways; if so, adjust the wings accordingly. During competitions, it is usually better to throw the aircraft against the wind without using excessive force. Especially when the wind is strong, if you apply too much force, the aircraft will perform a somersault, reducing the landing time.

Reminders of Love:
Before assembly, please check that the circuit is unobstructed and all components are intact, with good contact at each connection point. During assembly, be careful not to let the glue get on your clothes or skin. Keep the components out of reach for younger siblings to avoid them being swallowed! Do not play with them on your head, as the model may fall and hurt you!

Zhejiang Jianyi Education Technology Co., Ltd.
Zhejiang Jianyi Education Technology Co., Ltd. (formerly Yifei Toys Factory)Established in 2007, the current brand names include “XING TEACHER” and “JIAN YI”. Through 10 years of relentless effort, the company has gradually matured. Our firm is a member of the Ministry of Education’s Teaching Equipment Industry Association and a key enterprise in Zhejiang Province’s teaching equipment sector. For three consecutive years, it was recognized by Jinhua City as a “Contract-Abiding and Creditworthy” entity, and in 2014, it was awarded the title of “Advanced Enterprise in Jinhua Teaching Instruments Industry” by Zhejiang Province.
Zhejiang Jianyi Education Technology Co., Ltd. is a high-tech enterprise that integrates modern scientific research and development of educational equipment, curriculum design, integrated teaching resources, and technical services. With its high-tech products and modern educational equipment, Zhejiang Jianyi Education Technology Co., Ltd. sells its products across the country and to Europe, America, Japan, South Korea, and other regions. After years of accumulation, the company has reached a certain scale. In terms of technological innovation, the company employs professional designers who develop complete sets of educational products and upgrade existing products. In terms of production, management, and installation services, the company strictly adheres to the standards of the ISO9001 international quality assurance system. In marketing, the “Teacher Xing” products have been introduced to many provinces and cities in China and enjoy a good reputation. Over the years, the company has provided high-quality, advanced, and professional series of modern teaching equipment and specialized R&D and customization services for the education sector. With excellent, highly qualified professionals, comprehensive after-sales service, high product quality, and a positive corporate image, the “Teacher Xing” educational and scientific series in physics, chemistry, energy, geography, biology, art, and more have won multiple bids in education bureau tenders. Zhejiang Jianyi Education Technology Co., Ltd. continues to uphold the business philosophy of “ultimate quality, diligent service, and sincerity in people,” maintain the “Teacher Xing” culture, build the “Teacher Xing” brand, and advance the development of “Teacher Xing.” It provides excellent equipment and high-quality services for school teaching and research. We are willing to cooperate wholeheartedly with new and old friends at home and abroad, work together, and serve education with all our efforts and contribute to the education industry.

Please check that the circuit is unobstructed and all components are intact before assembly, as well as ensure all contact points are properly aligned. During assembly, be careful not to let glue get on your clothes or skin. Keep the components out of reach for younger siblings to prevent them from accidentally swallowing them! Do not play with them on your head, as the model may fall and hurt you!