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The NdFeB Magnets’ Magic Force in the Aviation Industry

Introduction

The aviation industry is a realm of precision engineering and technological innovation, where every component plays a pivotal role in ensuring safety, efficiency, and performance. Among these components, magnets, particularly NdFeB magnets, are widely used in a multitude of applications that enhance navigation, communication, and even aircraft propulsion. Here are different grade NdFeB magnet applications in aviation:

NdFeB magnets for aviationImage Source: Goudsmitmagnets

N52 Grade NdFeB Magnets

N52 magnets represent the zenith of NdFeB magnet strength and are reserved for aviation applications demanding unparalleled magnetic power. They are employed in:

High-Performance Electric Motors: Advanced flight control systems necessitate electric motors capable of delivering maximum power and efficiency. N52 magnets, with their unmatched magnetic strength, are the preferred choice for such applications. They are used in precision actuators responsible for maintaining aircraft stability and control throughout various flight phases.

Precision Actuators: In flight control systems, precision actuators play a pivotal role in adjusting control surfaces like ailerons, elevators, and rudders. These actuators must operate with precision and respond swiftly to pilot commands. N52 magnets are integrated into these actuators to ensure that they provide the necessary force and torque, resulting in precise and rapid adjustments to control surfaces. This enhances aircraft maneuverability and responsiveness during flight.

Landing Gear Actuators: Landing gear systems in aircraft must be highly reliable and capable of withstanding substantial loads during takeoff, landing, and ground operations. N52 magnets are used in the actuators that control landing gear deployment and retraction. Their robust magnetic strength ensures that these critical components operate with the necessary force and precision, contributing to the safety of landing and ground handling procedures.

 

ndfeb magnets applications in aviation industry

Image Source: Schott

N35 Grade NdFeB Magnets

N35 magnets serve as the workhorses for numerous aviation systems, thanks to their balanced magnetic properties and cost-effective nature. In aviation, their applications include:

Altitude Sensors: Aviation relies on precise altitude measurements for navigation and safe flight. Altitude sensors utilize N35 magnets to ensure accurate readings of an aircraft’s height above sea level. These measurements are vital for determining flight levels, avoiding mid-air collisions, and maintaining appropriate spacing between aircraft in congested airspace.

Angle of Attack (AoA) Sensors: AoA sensors are critical for monitoring the angle between an aircraft’s wing and the oncoming airflow. This parameter is pivotal in preventing stalls and ensuring stable flight. N35 magnets contribute to the precision of AoA sensors, providing real-time data that pilots rely on for safe control during takeoff, cruising, and landing.

N42 Grade NdFeB Magnets

N42 magnets, known for their enhanced magnetic strength compared to N35, find applications in aviation systems where greater force or torque is required. These include:

Flight Control Actuators: Aircraft depend on electric motors to actuate flight control surfaces like ailerons, elevators, rudders, and flaps. N42 magnets are chosen for these actuators due to their capacity to ensure efficient operation with precise control. The robust magnetic strength of N42 magnets significantly enhances maneuverability, responsiveness, and overall flight safety.

 

magnets application aviation propulsion

Image Source: Safran-group

Mixed Grade NdFeB Magnets

In some aviation systems, a combination of NdFeB magnet grades is strategically employed to attain the ideal balance between magnetic strength and precision. A prime example is:
Inertial Measurement Units (IMUs): IMUs are pivotal components in aviation, providing real-time data on an aircraft’s orientation, acceleration, and angular velocity. Achieving accuracy and stability in these measurements is paramount for flight control and navigation. IMUs may incorporate a blend of NdFeB magnet grades to optimize performance and ensure reliability under various flight conditions.

Customized NdFeB Magnets

For highly specialized aviation systems with unique requirements, customized NdFeB magnets are meticulously designed to meet specific needs. These customized magnets may feature distinctive shapes, sizes, or magnetic strengths tailored precisely to the demands of advanced avionics, navigation, or flight control systems. Customization ensures that magnets flawlessly integrate into the most demanding aviation applications, where precision and reliability are non-negotiable.

Summary

Different NdFeB magnets, each with unique magnetic properties, make them suitable for specific applications in the aviation industry, contributing to the precision, safety, and efficiency of aircraft. From avionics systems and safety sensors to communication and propulsion, their impact is both discreet and profound. As aviation continues to advance, these tiny magnetic components play an increasingly significant role, ensuring that aircraft operate at the highest levels of safety and performance.

At Tengye, we’re thrilled to be early participants in your new projects. Our passion for magnets extends from material selection and design optimization to providing magnetic solutions. We hope to bring our knowledge and experience to the forefront by actively engaging in your upcoming projects. Fill out the form and work with our experts to discuss the NdFeB magnets applications in the aviation industry, pushing your projects forward.

 

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Jonah Jin

Jonah Jin
Managing Director

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