by NMG Aerospace | Sep 12, 2024 | Uncategorized
Solenoid valves are crucial components for precision and reliability in aerospace. But how does a solenoid valve work to maintain reliable aircraft performance? The purpose of these valves is to precisely regulate fluid and gas flow across various critical aerospace systems, from braking mechanisms to deicing equipment. Aerospace systems commonly use hydraulic solenoid valves, pneumatic solenoid valves, electric solenoid valves, gas solenoid valves, and other types to serve essential functions within an aircraft.
What Is a Hydraulic Solenoid Valve?
A hydraulic solenoid valve controls hydraulic fluid flow in high-pressure applications. These valves manage hydraulic power in aerospace systems like landing systems, brakes, and flight controls. These valves use an electric current to actuate the valve, ensuring precise control of hydraulic fluid flow. This precision is vital for optimal performance and safety of aerospace systems. For example, in landing systems, hydraulic solenoid valves ensure smooth and reliable deployment and retraction of gear during extreme environmental conditions.
Components of Solenoid Valves
In aerospace systems, solenoid valves consist of three critical components: the coil, plunger, and body. These parts work together to ensure precise fluid and gas control and system reliability.
The Coil
The wire coil is the core of the solenoid valve. When electrical current flows through it, the coil generates a magnetic field that moves the plunger within the valve. The responsiveness and efficiency of a solenoid valve are determined by the coil’s material, voltage rating, and power consumption.
The Plunger
The plunger is a movable metal component within the solenoid valve. When the coil is energized, the magnetic field pulls the plunger, causing it to open or close the valve to control fluid or gas flow. High-quality materials and exact dimensions are crucial for accurate and reliable valve operation, particularly in high-stress aerospace environments.
The Body
The body of a solenoid valve houses all of the internal components. It also features inlet and outlet ports through which fluids or gases flow. The body is designed to withstand high pressures and harsh environmental conditions. This durability and structural integrity are vital for ensuring long-term reliability and performance of the solenoid valve.
Types & Applications of Solenoid Valves Used in Aerospace
Different types of solenoid valves are used in aerospace, each suited to specific applications:
Pilot-Operated Valve
Pilot-operated solenoid valves use a small pilot valve to control a larger valve. This type is ideal for high-pressure applications where direct control would require excessive force. By employing a pilot valve, these solenoids can manage large flows efficiently and with lower power consumption. They are commonly used in fuel and hydraulic systems in aircraft where precise control is critical.
Direct-Acting Valve
Direct-acting solenoid valves operate without a pilot valve. Instead, the electromagnetic force directly moves the plunger to open or close the valve. This makes direct-acting valves simpler and faster in operation and well-suited for high-stress aerospace environments. These valves are ideal for critical safety systems, such as emergency shut-off valves in fuel and hydraulic systems.
2-Way, 3-Way, and 4-Way Valves
2-way valves have two ports and are used to allow block fluid flow. They are commonly found in simple on/off applications. With three ports, 3-way valves can direct fluid between two different paths. This makes them suitable for more complex control scenarios, such as switching between landing systems. Lastly, 4-way valves have four ports that control double-acting actuators. They are essential in systems that require reversing the direction of fluid flow, such as flight control surfaces.
Choose NMG Aerospace for Superior Solenoid Valve Solutions
NMG Aerospace stands out as a leader in the design and manufacturing of high-quality hydraulic valves that integrate seamlessly into various systems to ensure exceptional aircraft performance and safety. Our solenoid division, Electromotive Inc., brings decades of specialized experience in custom solenoids, solenoid valves, and actuators to support your project from the ideation stage through quality testing. To discuss your next project, talk to a member of our team today.
by NMG Aerospace | Aug 22, 2024 | Uncategorized
What Are Aviation Safety Standards?
Aviation safety standards are universal requirements that create a shared benchmark used by aircraft manufacturers and airlines to ensure the safety of everyone in and around an aircraft. These standards govern everything from the durability of military aircraft wheels to pilot activity in business aviation.
All categories of aircraft must comply with aviation safety standards, though the specifics may differ between commercial, military, private, and business aviation. Aviation safety standards are developed based on the risks associated with each type of aviation or aircraft, with the goal of optimizing safety from as many angles as possible.
Regulatory Bodies
Aviation safety is governed by multiple regulatory bodies, from governmental bodies to global entities.
Federal Aviation Administration
The Federal Aviation Administration, or FAA, is part of the United States Department of Transportation. The FAA manages a vast body of regulations, statutes, and rules, all of which are developed with the goal of protecting pilots, flight attendants, passengers, and the general public. FAA standards touch virtually every aspect of aviation, including:
- Aircraft design, manufacturing, and maintenance
- Pilot training
- Flight
- Ground activity
Some FAA standards apply to all types of flight, while others are specific to certain categories, such as military or business aviation.
International Civil Aviation Organization
The International Civil Aviation Organization, or ICAO, is an agency of the United Nations. The ICAO plays a critical role in overseeing and supporting the growth of the aviation industry on a global scale, with the goal of ensuring safety. The ICAO keeps updated information on member countries’ aviation standards and practices and manages its own library of standards on passports and infrastructure management.
How Safety Standards Drive the Manufacturing Process
Aviation safety standards and regulations apply to aerospace manufacturing as well as aircraft operations. Excellence in manufacturing is critical to ensuring safety in flight.
Material Selection
Many aircraft components are subjected to intense conditions during takeoff and landing and throughout the flight. Ensuring the reliable performance of these components begins with choosing a manufacturing material that can withstand the rigors of the aerospace environment and meet the safety standards put forth by the relevant governing bodies.
Quality Assurance and Control
Some aviation safety standards require specific quality control practices during the aerospace manufacturing process to ensure well-made components that will perform as designed. Conducting multiple quality checks increases the likelihood of detecting potential issues early, so they can be addressed, and improves consistency on the manufacturing floor.
The Impact of Safety Standards on Business Aviation
Aviation safety standards compel manufacturers to innovate reliable products and improve their own practices to support safe flight. In the world of business aviation, this has a few key impacts:
Enhance Passenger Safety
Aviation safety standards are developed with the goal of protecting all passengers. In the world of business aviation, this may include key leaders, valued employees, important clients, and other special guests aboard the aircraft.
Build Trust in the Industry
A strong track record of safe flights is critical for the success of business aviation. Business aviation safety standards ensure the highest likelihood of a safe journey from one destination to another.
Innovation and Continuous Improvement
The inherent constraints of aviation safety standards have inspired tremendous innovation over the years as aerospace manufacturers strive to develop better components that still meet requirements. Aviation safety standards drive continuous improvement in business aviation by compelling manufacturers to think creatively about innovation and safety together.
NMG’s Commitment to Quality and Safety
NMG Aerospace is proud to make top-quality business aviation components that adhere to the most stringent aviation safety standards. With rigorous quality control practices and our innovative methods of design, we take a multi-faceted approach to safety and quality in business aviation. From clean-sheet design to existing component updates and beyond, you can count on NMG for reliable manufacturing, exceptional quality, and excellent service.
To learn more about NMG’s business aviation expertise, talk to a member of our team >
by NMG Aerospace | Aug 16, 2024 | Uncategorized
The Importance of Upgrading Aerospace Parts
Just as cars need routine maintenance and new parts from time to time, aircraft components need to be serviced and replaced on a regular basis. Aerospace parts often operate in intense conditions, and even those engineered for longevity don’t last forever. Maintaining and upgrading aircraft components on a consistent schedule is not only critical for safety and performance, it can also yield cost savings and extend the lifespan of aircraft systems.
Ensure Safety
Worn-out parts, such as engine components, filters, electronics, and brake parts, can cause serious problems if they fail to meet expectations while the aircraft is in use. Upgrading and replacing components on the recommended schedule, or when signs of wear begin to appear, is key to ensuring safe operation of the aircraft.
Maximize Aircraft Performance
Some aircraft components can continue to function past their recommended service life, but they are unlikely to perform as well as a new part. The fading efficacy of a worn-out part can have a ripple effect throughout the aircraft. Upgrading aircraft components regularly contributes to the superior performance of the aircraft as a whole.
Extend Component Lifespan
Upgrading smaller components within a larger system can meaningfully extend the life of the larger system. Replacing belts and valves on a regular basis, for example, is vital for maximizing the lifespan of the engine.
Comply with Regulatory Standards
While upgrading some aerospace components is a judgment call, other aircraft upgrades are mandated by regulatory bodies. Keeping up with the required schedule is critical to maintaining compliance.
Save on Maintenance Expenses
Regularly upgrading aircraft parts can help prevent more significant expenses down the road. Keeping up with routine maintenance minimizes the risk of larger malfunctions or expensive repairs, which are often far more costly and time-consuming to resolve.
Commonly Replaced Aircraft Components
Some aircraft components can last for years or even decades, while others must be replaced or upgraded on a schedule. This largely depends on the function of the component and its rate of wear while in service. Commonly replaced aircraft components include:
Wheels and Brakes
Aircraft wheels and brakes are designed to perform under incredible duress, absorbing the full weight and momentum of the aircraft while performing critical functions. Even those designed for maximum longevity must be upgraded or replaced on a regular basis to ensure optimum function. Routine maintenance for aircraft wheels and brakes should include close inspection and regular replacement of wheels, brake pads, and other components as needed.
Avionics Systems
Many aircraft are engineered and built to last for decades, but the lifecycle of avionics is much shorter. This is partially due to the speed of advancements in electronics, as well as the shorter lifespan of delicate avionics components. In order to avoid obsolescence, avionics systems should be upgraded according to a regular schedule.
Engine Components
Aircraft engines are high-performance machines that convert tremendous amounts of power into motion, often in intense conditions. Replacing and upgrading aircraft engine components, such as belts, filters, and fan blades, is critical to extending the life and improving the performance of the engine.
NMG’s Commitment to Quality and Safety
NMG Aerospace understands the vital importance of quality when it comes to aerospace components and how quality contributes to safety in the skies. We take a multi-pronged approach to quality assurance in our aerospace component manufacturing practices, from coveted accreditations from federal and industry bodies to extensive qualification testing of finish components. And with our company-wide commitment to continuous improvement, we’re always looking for ways to do even better. Our customers return to us over and over because they know they can count on NMG for quality and consistency, every time.
Upgrade Your Aircraft With NMG Aerospace
From MRO services to aerospace component manufacturing, NMG Aerospace offers the services and expertise to support aircraft upgrade projects of every kind. Our team can help you determine whether you need to simply replace worn parts or upgrade an entire system based on your needs and goals. To learn more about aircraft upgrades with NMG Aerospace, get in touch.
by NMG Aerospace | Jul 19, 2024 | Uncategorized
NMG Aerospace is proud to offer a robust portfolio of aerospace manufacturing and design services for a wide range of aerospace components and assemblies. Our aerospace manufacturing experience dates back to 1967, when we began providing machining services for the aerospace industry. Since then, we have strategically expanded the capabilities and expertise of our aerospace manufacturing company to support the evolving needs of the aerospace industry through continuous innovation, rigorous quality standards, and a commitment to on-time delivery. As an elite Tier 2 manufacturer, NMG leverages advanced capabilities including fabrication, precision machining, NADCAP welding, and more to support you at every stage of the aerospace manufacturing process. We consistently deliver aerospace components and assemblies of the highest quality that meet the most stringent industry standards.
Core Capabilities
We have earned NADCAP certifications for welding and chemical processing, refined our fabrication and design skills through decades of experience, expanded our precision machining and MRO footprints, and conducted countless quality validation tests for aerospace components, systems, and assemblies. Our comprehensive core capabilities allow us to address the diverse demands of the industry, ensuring that each aerospace component meets rigorous performance and excels in the most challenging service environments.
With many years of experience in aerospace manufacturing and building assemblies from the ground up, NMG brings tremendous knowledge and perspective to the fabrication and assembly process. From sheet metal fabrication and NADCAP certified welding to streamlined assembly, we excel at both modifying existing designs and developing innovative aerospace components from scratch. Our experts provide comprehensive support from your first conversation through testing and validation, solidifying our reputation as an aerospace manufacturing company you can rely on.
NMG Aerospace has over 40,000 square feet of dedicated precision machining space, staffed by highly experienced machinists who specialize in aerospace manufacturing. We address the intricate requirements of aerospace components using cutting-edge machinery and advanced processes, ensuring each component adheres to exacting tolerances and withstands the rigorous demands of aerospace applications. From landing gear and braking assemblies to steering, evacuation, and actuation components, NMG is a trusted name for aerospace manufacturing and precision machining that exceeds industry standards.
With our extensive experience in aerospace manufacturing, NMG Aerospace offers peerless insight into the design process for aerospace components and assemblies. We leverage our knowledge as a top aerospace manufacturing company to help you address tough design challenges and expedite time-to-market. From simple aerospace components to complex, specialized assemblies, our innovative solutions help our customers meet evolving industry demands. In addition to component and assembly design, we can also create custom fixtures to support new aerospace manufacturing processes.
NMG is proud to hold NADCAP certification for our aerospace welding services. Our highly skilled NADCAP team has extensive experience in welding critical aerospace components such as pressurized vessels, rigid tubes, stainless steel tanks, and custom welded components that adhere to NADCAP standards. We’ve developed advanced processes to ensure precise control of shrinkage, tight tolerances, and minimal warping throughout the lifecycle of NADCAP welded components and products.
As part of our dedication to supporting the entire aerospace manufacturing process, NMG Aerospace offers comprehensive qualification testing for aerospace components. Our on-site testing capabilities adhere to the requirements of RTCA DO-160 and other aerospace manufacturing quality standards. With our many years of experience in aerospace manufacturing, design, and testing, we can develop custom testing protocols that simulate real-world conditions and ensure the highest standards of safety and performance for our customers’ aerospace components. These qualification testing capabilities provide critical data for research and development purposes and for validating component reliability in unusual situations or service environments.
NMG’s broad aerospace manufacturing and design services are augmented by our extensive maintenance, repair, and overhaul (MRO) capabilities for aerospace components and systems. Our MRO experts have specialized knowledge in deicing, electromechanical, and hydraulic systems, as well as packboards and accessories. To ensure thorough and reliable MRO support, NMG also operates two FAA repair stations in the United States: one in Stow, Ohio, and one in Tempe, Arizona. Our Ohio FAA repair station is also compliant with EASA Part-145. NMG’s comprehensive MRO capabilities ensure operational readiness and extend the lifecycle of critical aerospace components.
As a leading aerospace manufacturing company, we are proud to stand behind extensive chemical processing capabilities ranging from anodizing to powder coating that reinforce our commitment to superior-quality aerospace components. In addition to our NADCAP welding services, NMG has earned other coveted NADCAP certifications for a range of chemical processing services. Our NADCAP certified chemical processing capabilities include shot peening, painting, pickling/passivation, brazing, and anodizing. With advanced machinery designed for sizable aerospace components, our chemical processing services ensure strict adherence to rigorous industry standards and consistent performance in demanding environments.
What Sets NMG Aerospace Apart
At NMG Aerospace, our dedication to actively listening to our customers distinguishes us from other aerospace manufacturing and aerospace machining companies. We show our commitment to quality and exceptional service through tailored solutions that align with your strategic goals. Our customer-focused approach drives us to continually innovate and improve our aerospace manufacturing capabilities, ensuring you stay competitive in the rapidly evolving aerospace industry.
With over 50 years of industry experience, we are an elite Tier 2 manufacturer offering comprehensive services to address specific challenges in aerospace manufacturing and precision machining. Our adherence to LEAN manufacturing ensures efficient production, while our advanced precision machining and NADCAP certified services guarantee top-tier quality in aerospace components and assemblies. We also prioritize on-time delivery and leverage our global supply chain to keep your projects on track and efficiently managed.
Partner With NMG Aerospace
From the first conversation between your team and ours to the final delivery, NMG earns your trust by prioritizing quality and service.
To learn more about our aerospace manufacturing, MRO, chemical processing, and testing services, talk to a member of our team.
by NMG Aerospace | Jul 19, 2024 | Uncategorized
Safety is important in many industries, but in the realm of aerospace manufacturing, there is a tremendous price to pay when safety is not prioritized. And safety goes far beyond evacuation slides, life rafts, and emergency brakes. Every single component of an aircraft, from a single screw to a massive fuselage, contributes to its safe operation, both in the air and on the ground. When safety is a priority, everyone—from the people aboard the plane to the bystanders on the ground—benefits.
A robust safety strategy is the product of many different factors, but at its core, safety starts with quality.
NMG’s Commitment to Quality
NMG Aerospace understands that safety, quality, and consistency are inextricably linked. Quality aerospace components lay the foundation for safe aircraft operations, and for high-volume production runs, consistency is key to ensuring that every single component meets the exacting standards of our customers.
Quality is built into the fabric of NMG, from new hire training to production. There are multiple quality checks built into our aerospace manufacturing processes, above and beyond what is required by regulatory bodies. Every single member of our aircraft design and manufacturing team undergoes intensive continuous improvement training, so we can work together to deliver our best, every time.
Our safety and quality measures also include multiple certifications and accreditations and rigorous on-site testing to validate aerospace component performance.
Quality Assurance & Certifications
NMG has earned a number of coveted accreditations at our aerospace manufacturing and repair facilities. These accreditations are only granted to companies that meet incredibly high standards for quality and integrity, and are willing to undergo a rigorous certification process.
Standards
NMG Aerospace is ISO 9001 accredited and AS 9100 certified at our facilities in both Ohio and Arizona.
Processing
NMG is proud to be NADCAP certified for aerospace welding and chemical processing.
Air Agency
NMG’s repair stations in Stow, Ohio and Tempe, Arizona are FAA certified and compliant with federal quality and safety standards. The Stow facility is also EASA certified.
Qualification Testing Capabilities
NMG has invested in extensive in-house aviation qualification testing capabilities so we can validate the performance of components and assemblies and ensure a superior final product. We can recreate a wide range of intense environmental conditions in a controlled environment, so we can observe how components will perform when they encounter those conditions in the field. Understanding the relationship between a component and an uncontrollable variable, such as temperature, humidity, or altitude, is key to developing aerospace components that can perform as intended while in service in adverse conditions. This insight into product performance gained through aviation qualification testing is another predictor of quality and, ultimately, safety.
Partner With NMG Aerospace
Countless major aircraft and aerospace manufacturers trust NMG to provide high-quality components that meet their rigorous standards and enhance safety. With our accreditations, robust quality checks, and stringent testing, we’ve built our entire operation around delivering quality and consistency, every time.
Collaborative Solutions
NMG is more than just an aerospace component manufacturer. We strive to be a true partner to other aerospace companies. We take a highly collaborative approach to every customer interaction, so we can understand your needs and create a solution that matches your specs, meets your deadlines, and keeps your aerospace company moving forward in a competitive marketplace. And because NMG is a private aerospace company, we can be nimble and adapt our approach quickly if your circumstances or needs change.
To learn more about our approach to collaboration, our quality standards, and how we can support you, talk to a member of our team.
by NMG Aerospace | Jun 19, 2024 | Uncategorized
A Brief Primer on Aircraft Braking Systems
Different types of aircraft rely on a variety of braking systems for safe operation. From wheel brakes on commercial planes to rotor brakes on helicopters, braking systems are critical for safety and performance.
Each type of aircraft braking system has unique features and functions based on its position and purpose.
Aircraft Wheel Brakes
Aircraft wheel brakes are incorporated into the aircraft’s landing gear. Aircraft wheel brakes must apply tremendous force to fast-moving wheels to slow or halt their rotation and bring the aircraft to a stop on the tarmac or runway. All components of an aircraft’s braking system must withstand the friction and heat generated by the braking process.
Different types of aircraft must perform braking maneuvers in different environments. Commercial aircraft wheel brakes are operated almost exclusively on well-maintained airport runways. These runways tend to be long, allowing ample time for braking. Military aircraft, on the other hand, often must land on fields, rough surfaces, or aircraft carriers with extremely short runways. These strenuous and often unpredictable situations put considerable stress on the aircraft’s braking system, which must be taken into account during the design process.
The tremendous forces of aircraft wheel braking systems are operated entirely via a foot pedal, controlled by a human pilot.
Helicopter Rotor Brakes
The purpose of helicopter rotor brakes is to stop the rotation of the helicopter’s blades. Helicopter pilots do not deploy the rotor brakes until after the helicopter has landed and the engine has been shut down. Only after the spinning rotors have come to a complete stop is it safe for the pilot and passengers to exit the helicopter.
Helicopter rotor brakes are very different from aircraft wheel brakes. While wheel brakes, which are integrated into the aircraft’s landing gear, have virtually no impact in the air, it is incredibly dangerous to activate helicopter rotor brakes while in flight, even for a moment. For this reason, helicopter rotor brakes are activated with a manual lever, instead of a foot pedal that could be tapped by accident.
Brakes for Homebuilt Aircraft
Many homebuilt aircraft are entered into short takeoff and landing (STOL) competitions. Pilots of homebuilt aircraft strive to execute a complete stop as quickly as possible after landing, often less than fifteen feet from the touchdown site.
Needless to say, fast-acting brakes must be able to apply and withstand tremendous pressure. And because these aircraft are homebuilt, the landing gear and braking system installation process must be simple enough for the average STOL competitor to do it safely. Performance and ease of use must both be considered during the design process.
Aircraft Brake Materials
Material choice for aircraft brakes can be a balancing act. Aircraft brake materials must be durable enough to withstand heat, pressure, vibration, and other forces. However, aerospace manufacturers must also be mindful of weight, since heavy materials affect the fuel economy and aerodynamics of the aircraft.
Some common materials used for aircraft brakes and landing gear include:
Metals
Disc brake rotors are often made from iron or steel. Brake linings also frequently contain metals and may be semi-metallic or sintered.
Rubber
Braking system hydraulics are operated with rubber components.
Carbon Fiber
Some aerospace manufacturers have started using carbon fiber as an alternative to traditional metals in aircraft braking systems. Carbon fiber is light, strong, durable, heat resistant, and can last a long time. As carbon fiber becomes less expensive, its popularity is expected to grow.
The Right Braking System for Your Aircraft
Designing and building the right braking system and landing gear for a given platform requires understanding both the aircraft and its anticipated service environment. The experts at NMG have years of experience in aircraft brake manufacturing and deep knowledge of the many variables to consider during the design process. From the early stages of ideation and design to material selection, manufacturing, and quality testing, NMG can support every step of the aircraft brake production process.
To learn more and discuss a project, talk to a member of our team.
by NMG Aerospace | Jun 6, 2024 | Uncategorized
NMG is proud to offer a robust portfolio of aerospace testing capabilities to validate the environmental, structural, and functional performance of aircraft parts, products, and components. We’ve aligned our capabilities at our state-of-the-art aircraft testing and qualification facilities with RTCA DO-160 and other critical aerospace testing standards to ensure that we can help our customers remain competitive and current in the aerospace industry. In addition to standard tests, we can also design custom aerospace testing protocols for R&D and predicting outcomes of unique situations and environments. Whether we’re running an industry-standard test, such as RTCA DO-160, or designing a custom aircraft testing protocol, we emphasize accuracy, reliability, and repeatability to ensure quality data.
NMG’s Qualification Testing Capabilities
Temperature Testing
From the heat of launch to the extreme chill of altitude, aerospace components are often exposed to a wide range of extreme temperatures while in service. The purpose of temperature testing is to predict how a given material or component will perform under these circumstances. NMG’s thermal shock and environmental test chambers can recreate these dramatic temperature swings or prolonged periods of extreme exposure in a controlled aerospace testing laboratory environment.
Altitude Testing
Changes in altitude are often accompanied by drastic changes in both temperature and pressure. Aircraft parts and materials must be able to withstand these changes while continuing to fulfill their intended purpose. Laboratory altitude testing allows manufacturers to demonstrate how an aircraft component will handle altitude changes without ever leaving the ground.
Humidity Testing
Many aircraft components are exposed to humid environments while in service. While excess humidity can cause a number of issues, the greatest is corrosion, which can lead to mechanical failure and electrical shortages. Understanding the effects of humidity is vital to designing a system that can maintain performance when exposed to humid conditions. NMG leverages RTCA DO-160 humidity testing methods to allow manufacturers to qualify the effects of humidity on aerospace components in a controlled environment so they can validate performance.
Shock and Crash Safety Testing
Even in normal operations, an aircraft—and its many components and assemblies—can experience a variety of shocks. Landing, taxiing, strong winds during flight, and other standard events can transmit shock throughout the aircraft. RTCA DO-160 operation shock and crash safety testing is designed to demonstrate how aircraft parts respond to these forces by recreating shocks in an aircraft testing laboratory setting.
Vibration Testing
Propellers, fans, turbojets, and other aerospace mechanisms generate a lot of vibration while in service. The intensity and duration of vibration can vary depending on the aircraft and the flight. Aircraft components can be subjected to standardized vibration profiles in an aerospace testing lab based on what they may encounter in service to ensure compliance with performance standards. NMG has deep knowledge of the vibration testing methods for each aircraft outlined in RTCA DO-160.
Waterproofness or Fluid Susceptibility Testing
From puddles on the runway to precipitation in the skies, aircraft are exposed to moisture. Fluid susceptibility testing assesses a component’s vulnerability to fluid ingress and fluid contamination. NMG can recreate a wide range of fluid exposure scenarios in a controlled laboratory setting based on the unique environment of each component. RTCA DO-160 test methods range from full immersion or soak testing to minimal contact or dripping.
Icing Testing
Changes in altitude, humidity, and temperature can lead to ice buildup on aircraft. Icing test protocols can recreate several icing scenarios, based on the location of a component within an aircraft, and determine whether performance is compromised by icing. This type of aerospace testing is conducted in a specialized environmental test chamber.
Other Tests: RTCA DO-160 and Custom Protocols
NMG’s aerospace and aircraft testing facilities are equipped for a wide range of additional validation, performance, and conditioning tests. In addition to RTCA DO-160 testing, we can design custom protocols and combine multiple variables to recreate unique service environments based on our customers’ needs.
What Is RTCA DO-160 Testing?
RTCA stands for Radio Technical Commission for Aeronautics. RTCA DO-160 is an aerospace testing standard that describes laboratory testing methods for assessing the performance of aircraft parts in different environmental conditions. RTCA DO-160 includes 23 different aerospace testing procedures, such as temperature, humidity, and vibration testing. Each RTCA DO-160 test procedure includes options for tailoring the method based on the type of aircraft or component undergoing testing.
The RTCA is not a government entity, but many RTCA DO-160 test procedures have been adopted by federal agencies, such as the United States Federal Aviation Administration (FAA) and the European Union Aviation Safety Agency (EASA).
Continuous Improvement
NMG’s robust in-house aerospace testing capabilities are an important pillar of our commitment to continuous improvement. While aircraft testing is vital to demonstrating compliance, it also reveals data and insight that can pave the way for the next generation of exceptional aerospace components and platforms. Our team members are always looking to make our aircraft testing processes better so we can help you make your products better and remain competitive in the ever-changing aerospace market.
How Can We Support You?
Tell us about the components you need – we’re here to help you overcome your challenges with service and science that take you to new heights.
Get in touch.
by NMG Aerospace | May 13, 2024 | Uncategorized
NMG Aerospace is proud to offer a robust portfolio of manufacturing and design services for a wide range of aerospace components and assemblies. Our aerospace manufacturing experience dates back to 1967, when we began providing machining services for the aerospace industry. Since then, we have strategically expanded our aerospace manufacturing capabilities and expertise to support the aerospace industry through season after season of rapid growth and innovation. We have earned NADCAP certifications for welding and chemical processing, refined our fabrication and design skills through decades of experience, expanded our precision machining and MRO footprints, and conducted countless quality validation tests for aerospace components, systems, and assemblies.
With many years of experience building aerospace assemblies from the ground up, NMG brings tremendous knowledge and perspective to the fabrication and assembly process. From sheet metal fabrication and NADCAP welding to streamlined assembly, NMG has the expertise and capabilities to bring new and refreshed design ideas to reality.
NMG has over 40,000 square feet of dedicated precision machining space, staffed by highly experienced machinists who understand aerospace manufacturing and the industry’s specialized needs. From landing gear and braking assemblies to steering, evacuation, and actuation components, you can trust NMG to produce high-quality aerospace parts that comply with industry standards and meet your great expectations.
With our many years of experience in aerospace manufacturing, NMG can offer peerless insight into the design process for aerospace components and assemblies. From simple components to complex, specialized assemblies, we can help you solve tough design challenges and get to market faster by providing a nuanced perspective informed by many years of hands-on experience. In addition to component and assembly design, we can also create custom fixtures to support new manufacturing processes.
NMG is proud to have earned NADCAP certification for aerospace welding services. Our highly skilled NADCAP welding team has extensive experience with pressurized vessels, tanks, rigid tubes and frames, and other welded components. We’ve developed advanced processes to control shrinkage, maintain tight tolerances, and minimize warping on NADCAP welded components and products.
As part of our dedication to supporting the entire aerospace manufacturing process, NMG is proud to offer qualification testing for aerospace components. Our on-site testing capabilities are aligned with the requirements of RTCA DO-160 and other aerospace quality standards. With our many years of aerospace manufacturing, design, and testing experience, we can develop custom testing protocols for research and development purposes or to simulate an unusual situation or service environment.
NMG’s broad aerospace manufacturing and design services are augmented by our extensive maintenance, repair, and overhaul (MRO) capabilities for aerospace components and systems. Our MRO experts have specialized knowledge of deicing, electromechanical, and hydraulic systems, as well as packboards and accessories. NMG also operates two FAA repair stations in the United States: one in Stow, Ohio, and one in Tempe, Arizona. Our Ohio FAA repair station is also compliant with EASA Part-145.
In addition to our NADCAP welding services, NMG has earned other coveted NADCAP certifications for a variety of chemical processing services. Our chemical processing capabilities include shot peening, painting, powder coating, pickling/passivation, brazing, anodizing, and more. Our larger machinery can accommodate sizable aerospace components for many of these chemical processing services. NMG’s processes and procedures ensure strict adherence to rigorous industry standards and consistent performance in rigorous service environments.
At NMG, we continually strive to improve our offerings and processes to ensure a streamlined experience for our clients to help you stay competitive in the fast-paced aerospace industry. From the first conversation between your team and ours to the final delivery, our top priority is earning your trust by prioritizing quality and service.
To learn more about our aerospace manufacturing, MRO, and testing services, talk to a member of our team.
by NMG Aerospace | Apr 20, 2024 | Uncategorized
What is a FAA Repair Station Certification?
In simple terms, a FAA Repair Station Certification is granted to businesses providing aircraft repair services that comply with U.S. Federal Aviation Administration (FAA) regulations. But there is some nuance that should be understood.
There are plenty of non-FAA aircraft repair facilities that may be capable of repairing an aircraft, aerospace component, or assembly. They may understand aircraft repair and maintenance very well. However, only FAA repair stations can perform maintenance or repairs and approve that aircraft or system for return to service afterward. Non-FAA repair facilities do not have the credentials to grant such approvals.
Furthermore, FAA repair stations are certified to perform maintenance and repairs only for certain categories of aircraft and aerospace components. For example, the FAA specifies four classes of instrument repairs. An FAA repair station must demonstrate that they have the facilities, equipment, materials, and other resources required for each class. They may only be rated for Class 2 Instruments, or they may be rated for all four classes. A repair station may also receive a limited rating, which means they can only provide repairs for a specific make and model of a given aerospace system or component.
Why contract with an FAA repair station?
There are many reasons to contract with an FAA repair station. Two of the primary reasons are quality and approvals.
From a quality perspective, FAA repair stations are unparalleled. FAA repair stations must demonstrate compliance with the incredibly stringent requirements of the Federal Aviation Administration. This includes:
- Intensive personnel training.
- Robust quality control and management systems.
- Detailed manuals regarding personnel responsibilities and operating procedures.
FAA repair stations also have the authority to approve an aircraft, component, or assembly for return to service once maintenance and repairs are completed. A mechanic or repair facility without FAA certification does not have the same authority. Legally, you cannot put a part on an aircraft unless it comes from an FAA repair station.
How do I know what kind of work an FAA repair station can do?
FAA repair stations display their operating specifications certificate at their facilities and on their websites. If you are seeking to determine the ratings of an FAA repair station while doing online research, search the website for sections titled “Certificates,” “Approvals,” or “About Us.” You are likely to find FAA certifications in one of these areas.
Each certificate will list exactly which classes of repairs the FAA repair station is rated for. There are six categories of repairs, each of which is broken into classes:
- Airframe – four classes
- Powerplant – three classes
- Propeller – two classes
- Radio – three classes
- Instrument – four classes
- Accessory – three classes
The FAA repair station’s certificate will also specify whether the approval is limited to a specific make or model of aircraft or component.
FAA Repair Stations operated by NMG Aerospace
NMG Aerospace is proud to operate two FAA repair stations near several major transportation hubs:
- Stow, Ohio: Rated for Accessory (Class 1) and Limited Accessory. This facility is also compliant with EASA Part-145.
- Tempe, Arizona: Rated for Limited Airframe and Limited Accessories.
Review our certificates here.
Our FAA certifications are augmented by our fifty-plus years of experience designing and manufacturing aerospace components and aircraft systems. Our deep knowledge of aerospace engineering gives us additional insight into the aircraft repair process.
To start a conversation with NMG Aerospace about aircraft repair services at one of our FAA repair stations, talk to a member of our team.
by NMG Aerospace | Apr 8, 2024 | Uncategorized
NMG is proud to lead the industry in aerospace product and assembly design services, supporting our customers in their pursuit of superior aerospace components.
Get in touch.
Product Design for Aircraft System Components
The biggest names in the aerospace industry turn to NMG for aerospace component design services and support. With our expert workforce, comprehensive aerospace manufacturing and design capabilities, and sophisticated processes, we offer advanced insight into the design process and can help our customers take their components and systems to the next level. We have over fifty years of experience as an aerospace component manufacturer, helping our customers solve tough design challenges and distinguish themselves from their competitors in the rapidly changing aerospace industry.
NMG Has Significant Experience Designing Components for Many Aircraft Systems
Aerospace Hoses
From evacuation slide deployment to fluid management systems of all types, every aircraft platform relies on a network for high-performance hoses that can handle extreme temperature fluctuations and other highly variable environmental conditions. NMG has years of experience designing aerospace hoses for easy storage and precise, rapid deployment. We can help you design a reliable hose that performs exactly as intended in all manner of applications.
Aerospace Solenoids And Solenoid Valves
Solenoids use electrical currents to power countless valves throughout many vital aerospace systems and assemblies. In 2016, NMG acquired Electromotive Inc., a leader in the design and manufacturing of custom solenoids, solenoid valves, and actuators since 1972. Today, NMG offers unmatched expertise and design support for aerospace solenoid valves that can integrate seamlessly with other aerospace components in numerous applications and withstand intense environmental conditions, including extreme temperatures and vibration.
Deicing System Subcomponents
From high altitudes to cold climates, aircraft and aerospace components must be able to reliably manage ice buildup. NMG is a key supplier of deicing components and systems to aerospace industry leaders. Our experts have years of experience designing custom deicing components, including pressure regulation, isolation, relief, and distribution valves, to suit a wide range of aircraft platforms. From the validation of new concepts to modifications of existing designs, you can count on NMG for comprehensive deicing system design support and aerospace manufacturing expertise.
Custom Fixtures
In some situations, manufacturing a specialized part requires designing a new manufacturing process, including customized fixtures for welding and fabrication. NMG offers highly customized fixture design for specialty aerospace components and applications. Our experts can develop fixtures that ensure tight tolerances, control shrinkage, and minimize warping on even the most complex aerospace components.
Aircraft Wheels And Brakes
Aircraft wheels and brakes must be designed for both smooth transit and reliable operation in a range of conditions. NMG is proud to support the design process for aircraft wheels and brakes for Tier 1 aerospace companies and beyond. Our aerospace manufacturing expertise extends to multiple types of aircraft braking systems.
Potable Water and Waste Tanks
Potable water and waste management systems for aircraft are expected to adhere to rigorous standards for sanitation and perform in what are often adverse service environment conditions. NMG understands the requirements of aerospace water and waste management systems and engages directly in the design process, informed by many years of experience developing reliable systems and aerospace components for platforms of all types. From thin-walled tanks to precision valves, NMG can help you design exceptional aircraft water and waste system components.
Evacuation System Subcomponents
Aircraft evacuation slides and life rafts must be designed for fast, user-friendly deployment so that the average passenger is capable of operating them in an emergency. NMG has been designing and manufacturing reliable aviation safety system components for many years. We understand the tight storage limitations for these systems, as well as the intense situations in which they are usually deployed, and can help you design each component with those unique factors in mind.
Aircraft Seating
Depending on the platform, different types of aircraft seats are designed with different goals in mind. Commercial seats are designed for comfort, while crew seats are designed for swift and easy folding and storage. NMG can support the design of welded tube frames, folding mechanisms, and stretched and sewn fabric elements of high-performance crew seats. Our design and aerospace manufacturing experience spans from individual aerospace components to full seating assemblies.
Continuous Improvement
NMG’s commitment to continuous improvement is visible in our approach to aerospace component manufacturing and design. Our focus on lean manufacturing gives us a unique perspective on product design as well as manufacturing engineering, resulting in our design strategies, processes, prices, and customer service always being made better. We strive to deliver fresh insight and strategic guidance on every design project and help our customers remain nimble as they navigate the changing landscape of the aerospace industry.
How Can We Support You?
NMG is an aerospace components manufacturer with decades of experience supporting the design and manufacturing process. We leverage exceptional service and peerless design and engineering to help you overcome challenges and take your aerospace components and assemblies to the next level. We can also help you ensure compliance with National Aerospace Standards and other quality standards as you bring your aerospace components to market.
Get in touch.
by NMG Aerospace | Apr 8, 2024 | Uncategorized
NMG has spent years building and refining our quality management systems and mastering our offerings so we can provide quality aircraft parts and the best possible service to our valued customers in the aerospace industry. From initial conversations about design to final product delivery, our experts remain dedicated to exceptional quality at every stage of the process.
In addition to our rigorous internal standards, we are proud to have earned certifications and accreditations from respected organizations such as NADCAP, ISO, and the FAA. These organizations develop their quality and performance standards based on the needs of the aerospace industry as a whole. As the industry evolves, standards may evolve as well, based on technological advancements and feedback from manufacturers, service providers, and other leaders.
Our standards, processing, and air agency certifications and approvals are available to view below.
Quality
NMG maintains incredibly high-quality standards at every stage of the design and manufacturing process for aerospace components. Our quality management systems have been assessed and approved per the requirements of three of the world’s most prominent certification organizations: the International Organization for Standardization (ISO), SAE International, and European Association of Aerospace Industries.
We design, engineer, and manufacture quality aircraft parts at our facilities in Stow, Ohio and Tempe, Arizona. Both facilities are AS 9100 and ISO 9001 accredited. Certificates of approval for both facilities can be reviewed here:
NADCAP
The National Aerospace and Defense Contractors Accreditation Program, commonly called NADCAP, is the gold standard for aerospace accreditation. While many standards organizations assess the quality and performance of products, NADCAP certifies processes, such as welding and chemical processing. NADCAP certification offers several key benefits for manufacturers, suppliers, and others in the aerospace industry, including consistency, safety, and market visibility. The NADCAP certification process also enables service providers to identify opportunities for improvement and elevate their offerings.
Earning NADCAP accreditation for aerospace manufacturing services is a rigorous process, requiring intensive preparations, an on-site audit, and a task force review. NADCAP accreditation is only granted to service providers that meet the exacting quality and safety standards of the aerospace industry as a whole. To ensure ongoing adherence to NADCAP standards, the accreditation process must be repeated every twelve months. Learn more about NADCAP.
As part of our mission to design and deliver quality aircraft parts, NMG is proud to offer NADCAP services in both Ohio and Arizona. Our facilities in Stow, Ohio are accredited for NADCAP welding and NADCAP chemical processing. Our facilities in Tempe, Arizona are also accredited for NADCAP welding.
Review our NADCAP certifications here:
Air Agency
Many individual countries and regions have agencies dedicated to aviation safety, such as the Federal Aviation Administration (FAA) in the United States and the European Union Aviation Safety Agency (EASA). One of these agencies’ many functions is awarding certifications to businesses providing aircraft repair, maintenance, and inspection services that comply with their requirements.
NMG is proud to have two FAA-certified repair stations. Our FAA repair station in Tempe, Arizona is approved for Limited Airframe and Limited Accessory. Our FAA repair station in Stow, Ohio is approved for Accessory (Class 1: Mechanical Accessory) and Limited Accessory. The repair station in Stow has also received EASA Part 145 approval.
Review our FAA and EASA certifications here:
If you are met with technical difficulties when attempting to view or print these certificates, consider a free PDF tool such as Adobe Acrobat Reader.
by NMG Aerospace | Mar 14, 2024 | Uncategorized
Every element of an aircraft’s brake system has a distinct and essential role. The brakes generate friction to bring a speeding aircraft to a halt, relying on strong materials and precise mechanics to perform reliably. Join our experts as we dive deeply into how aircraft wheel brakes are manufactured!
Steps Involved
Each step involved in engineering brakes for aerospace landing gear is crucial. Aircraft wheel brakes must be designed correctly, manufactured with appropriate materials, and contain all the essential components.
The key to ensuring your aerospace brakes are engineered correctly is to work with a company that values quality above all else. NMG has built extensive quality control checks and processes into our aerospace manufacturing operations, ensuring that every component meets our customers’ requirements!
Design of Aircraft Brakes
Aircraft brakes must be designed to operate reliably in all conditions. To ensure an aircraft can land safely, you should use the proper brake system based on the aircraft’s size, weight, and speed. Four types of modern brakes are designed for aircraft landing gear: single disc, dual disc, multiple disc, and segmented rotor.
Single Disc
Single disc brakes are designed for smaller aircraft. They are set between two pads and connected to each main landing gear leg. The disc is set on the wheel, allowing the disc and the wheel to rotate in unison. As brakes are applied, the caliper presses the pads against the disc braking the aircraft.
Dual Disc
A dual disc system is used for aerospace brakes when single disc systems would not create enough braking friction to land safely. In this design, two discs are attached to the wheel and a center carrier is set between them. When the pilot applies the brakes, the center carrier linings make contact with the two discs and the wheel decreases in speed.
Multiple Disc
Multiple disc systems are designed for large, heavy aircraft. They are built on an extended bearing carrier that holds alternating steel stators and discs plated in copper or bronze. The stators are covered in brake lining which is designed to press against the rotors. Hydraulic pressure on the piston compresses this mechanism, which creates friction, slowing the aircraft wheels.
Segmented Rotor
This brake system is a variation of a multiple disc system, but contains modifications and upgrades. In a segmented rotor brake system, the brake rotors are designed with fixed high friction brake linings which make contact with rotors to slow the wheel. The rotors have slots cut into them, allowing any heat to escape. Segmented rotor brake systems are the standard on high-performance aircraft.
Materials
The rotors of disc brakes have historically been made with either iron or steel. However, this presents a problem for heavy aircraft because of the heat produced from high levels of kinetic energy. This causes steel or iron brakes to lose efficiency – something you can’t afford with aircraft brakes. Instead, many designers have begun using carbon fiber on disc brakes. This decreases the weight of the brake system and improves high-heat performance.
Components
There are various components involved when engineering aircraft brakes. Commercial, business, and military aircraft require high-quality, high-functioning brake sleeves, torque tubes, back plates, and discs that are equally reliable in both low-stress and high-intensity situations.
Common Problems With Aircraft Brakes
Understanding how aircraft brakes are engineered is important, as is knowing how to spot and fix a potential problem. Even the highest quality brakes will face wear and tear, needing maintenance occasionally. Below are three common problems that can be quickly handled when caught early.
Overheating
Aircraft brakes face a common issue: overheating. This could be caused by the design of the brakes or by high-braking maneuvers. To solve this problem, you can utilize a segmented rotor brake system and practice braking in a way that generates less heat whenever possible.
Dragging
If you feel a dragging sensation when letting off of the brake pedal, there could be a problem with the return mechanism, a weak return spring, a warped disc, or air in the brake fluid line. A trusted technician can fix any of those problems.
Chattering
Aerospace brakes can get loud, making a chattering or squeaking noise. This happens if the brake lining is not pressed evenly against the disc. A realignment or replacement of parts may be necessary to fix this problem.
Brake Safely Every Time With NMG
NMG’s dedication to exceptional quality management at every step of the manufacturing process results in exceptional brakes that function seamlessly in every operating environment. Let’s talk about how we can support your aircraft brake system!
