1. Introduction

The RC Ornithopter (Flying Bird) is a remote-controlled flying model inspired by the natural flight of birds. Unlike conventional aircraft that use fixed wings and propellers, an ornithopter generates lift and thrust through flapping wings. The project combines mechanical linkages, a lightweight frame, and radio control to demonstrate biomimetic flight and basic aerodynamics.

2. Objectives

• Develop a bird-inspired flying model.

• Generate lift through flapping-wing motion.

• Enable wireless flight control.

• Explore aerodynamic and mechanical principles.

• Reduce structural weight for efficient flight.

• Demonstrate biomimetic engineering technology.

3. Methodology

• Construct a lightweight bird-shaped frame.

• Fabricate flexible wings using lightweight materials.

• Install a motor and linkage mechanism to produce wing flapping.

• Connect an RC receiver to the motor control system.

• Use a battery to power the motor and receiver.

• Test wing movement, balance, and flight performance in a safe open area.

4. Instrument List

• Lightweight Frame

• DC Gear Motor

• RC Transmitter and Receiver

• Electronic Speed Controller (ESC)

• Rechargeable Battery

• Flapping-Wing Linkage Mechanism

• Flexible Wing Material

• Servo Motor

• Motor Mount

• Landing Skid

5. Working Principle

• The RC transmitter sends control commands to the onboard receiver.

• The receiver passes the commands to the motor and servo control system.

• The gear motor drives a mechanical linkage that converts rotational motion into repeated wing flapping.

• The moving wings generate aerodynamic forces that help produce lift and forward thrust.

• The servo adjusts the tail or control surfaces to influence direction and stability.

• The battery supplies electrical energy to the onboard components.

6. Advantages

• Bird-inspired flight mechanism

• Practical aerodynamics learning

• Remote-controlled operation

• Lightweight mechanical design

• Exploration of biomimetic technology

• Potential for aerial research

7. Conclusion

The RC Ornithopter demonstrates how bird flight can be recreated using mechanical wing movement and remote-control technology. By integrating a lightweight structure, motor-driven linkage, and onboard control components, the project provides practical experience in aerodynamics, mechanics, and flight control. Flight performance depends on wing design, weight distribution, motor power, and mechanical efficiency.