1, prepare the required materials. You need a cardboard, a plastic straw, a small motor, a propeller, a battery box, connecting wires and glue. After making sure all the materials are ready, you can start making.

2. Cut the cardboard into the shape of the helicopter fuselage. The fuselage should be rectangular and of moderate size, which is convenient for subsequent operation.

3. Stick the plastic straw under the fuselage as landing gear. In this way, the helicopter model can be stably placed on the ground.

4. Install the small motor above the fuselage. Fix it with glue to ensure that it does not shake.

5. Connect the propeller to the motor shaft. Ensure that the propeller can rotate freely and will not be hindered.

6. Connect the battery box to the motor. Connect them with a connecting wire and make sure that the connection is firm.

7. Install the battery and test the helicopter model. If all goes well, the propeller should be able to rotate. Gently pick up the helicopter and feel its rising power in your hands.

Application of helicopter model;

Helicopter model has its unique application in many fields. In the field of education, helicopter models are often used as teaching tools to help students understand the structure and flight principle of helicopters more intuitively. By observing the structure and flight process of the model, students can better understand the working mechanism of helicopters and enhance their interest in aviation knowledge.

Helicopter models also have important applications in scientific research and experiments. Scientists and researchers can use helicopter models to test new flight technologies, navigation systems or materials. This small-scale experiment is helpful to reduce the cost and improve the efficiency, and provides valuable reference for practical application.

Helicopter model is also a very popular entertainment and hobby. Many model enthusiasts like to make and control helicopter models by hand, which can not only bring fun, but also cultivate hands-on ability and innovative thinking. Some communities also organize model competitions and exhibitions to provide platforms for people to communicate and show.

Helicopter models are also collectible. Some exquisite models are made into limited editions or souvenirs and become collectors' treasures. These models can not only show the beauty and exquisite craftsmanship of helicopters, but also convey historical and cultural information.