For decades, futurists have been dreaming of “flying cars” that are easier and nimbler to operate than a helicopter and accessible to everyone. Today, many aerospace technologies are coming together helping numerous companies develop small passenger electric aircraft as soon as 2023. 
It’s no secret that Advanced Air Mobility (AAM) is going to be a hotly contested market with legacy aircraft builders, nimble startups, and original equipment manufacturer (OEM) systems providers clarifying their vision of the future. This new market aims to transport passengers and cargo at lower altitudes through urban, suburban, and regional landscapes. Aircraft that will meet these needs will utilize more- or all-electric technologies.
According to a 2020 Roland Berger study on Urban Air Mobility (UAM), a submarket of AAM, “the passenger UAM industry will generate revenues of almost $90 billion a year, with 160,000 commercial passenger drones plying the skies.” Further, Morgan Stanley Research projects that the UAM market could grow to $1.5 trillion by 2040.
Even the most conservative forecasts indicate the AAM market has huge potential as evidenced by the hundreds of vehicles in development.
In early 2021, Air One, the world’s first airport for electric aircraft, was launched in Coventry, England by Urban Air Port, a subsidiary of sustainable tech company small (Six Miles Across London Limited) in partnership with Hyundai Motor Company, Coventry City Council, and the UK government.
As technology evolves, infrastructure is built, and the regulatory/certification requirements established, AAM vehicles will take different forms:
More-electric aircraft (MEA), which have been in production for over a decade, utilize electric power for all non-propulsive systems. The trend toward more-electric aircraft has been driven by the desire for improvements in aircraft weight, fuel efficiency, emissions, life-cycle costs, maintainability, and reliability. 
Technology advancements in the areas of electric motors, motor controllers and inverters, electromechanical actuators (EMAs), and thermal management equipment are providing the building blocks that enable development of systems for more-electric aircraft.
Parker Aerospace, via its dedicated AAM systems team, offers a broad range of products and systems expertise for present-day applications as well as future-state aircraft:
The AAM market is dynamic and changing rapidly. New ideas for platforms, infrastructure, and the technologies that make this exciting segment possible are surfacing daily.
Amid this excitement, these aircraft must be certified for their intended purpose, as do the systems and components that enable the platforms to execute their missions. Regulatory agencies such as the FAA and EASA are presently establishing the parameters under which AAM vehicles can be approved to fly.
Platform builders need to know that their partners have the engineering muscle and experience to not only design an innovative solution that meets requirements, but to also produce a solution that can be certified. This is where an experienced aerospace technology partner is crucial.
Over decades, Parker Aerospace has built thousands of certifiable components and systems for commercial and military aircraft. All Parker equipment is conceived and engineered to offer redundancy, safety, and reliability with the certification process in mind. Contributing to Parker’s track record of certification success is its state-of-the-art simulation capabilities, advanced test equipment, and thorough knowledge of global regulatory requirements.
As the market continues to ascend, Parker Aerospace and its AAM team are actively innovating to help customers take full advantage of these new and fast-changing opportunities.
To learn more about how Parker Aerospace innovation is shaping the AAM market, email the team at airmobility@parker.com.
As a trusted partner, Parker's team members work alongside customers to enable technology breakthroughs that change the world for the better. We help our customers and distribution partners meet the newest standards for safety or emissions, reduce power usage, improve efficiency, and move faster to optimize resources. Parker's Purpose is at the core of everything we do. Watch the introduction video with Parker's CEO Tom Williams.
This blog was contributed by Chris Frazer key account manager and UAM/eVTOL/AAM business development lead of Parker Aerospace.
25 Jan 2022
For decades, futurists have been dreaming of “flying cars” that are easier and nimbler to operate than a helicopter and accessible to everyone. Today, many aerospace technologies are coming together helping numerous companies develop small passenger electric aircraft as soon as 2023.
It’s no secret that Advanced Air Mobility (AAM) is going to be a hotly contested market with legacy aircraft builders, nimble startups, and original equipment manufacturer (OEM) systems providers clarifying their vision of the future. This new market aims to transport passengers and cargo at lower altitudes through urban, suburban, and regional landscapes. Aircraft that will meet these needs will utilize more- or all-electric technologies.
Vast possibilities, by any measure
According to a 2020 Roland Berger study on Urban Air Mobility (UAM), a submarket of AAM, “the passenger UAM industry will generate revenues of almost $90 billion a year, with 160,000 commercial passenger drones plying the skies.” Further, Morgan Stanley Research projects that the UAM market could grow to $1.5 trillion by 2040.
Even the most conservative forecasts indicate the AAM market has huge potential as evidenced by the hundreds of vehicles in development.
AAM is evolving toward reality
In early 2021, Air One, the world’s first airport for electric aircraft, was launched in Coventry, England by Urban Air Port, a subsidiary of sustainable tech company small (Six Miles Across London Limited) in partnership with Hyundai Motor Company, Coventry City Council, and the UK government.
As technology evolves, infrastructure is built, and the regulatory/certification requirements established, AAM vehicles will take different forms:
MEA: a pathway to an all-electric future
More-electric aircraft (MEA), which have been in production for over a decade, utilize electric power for all non-propulsive systems. The trend toward more-electric aircraft has been driven by the desire for improvements in aircraft weight, fuel efficiency, emissions, life-cycle costs, maintainability, and reliability.
Technology advancements in the areas of electric motors, motor controllers and inverters, electromechanical actuators (EMAs), and thermal management equipment are providing the building blocks that enable development of systems for more-electric aircraft.
Technologies for more-electric and all-electric aircraft
Parker Aerospace, via its dedicated AAM systems team, offers a broad range of products and systems expertise for present-day applications as well as future-state aircraft:
Cockpit controls – Parker Aerospace cockpit controls provide functional and ergonomic interfaces between pilots and aircraft fly-by-wire systems. Compact and lightweight, these solutions can be seamlessly integrated into cockpit designs, including sidestick or yoke-based cockpit layouts.
Electro-mechanical actuators –These types of actuators are used for primary, secondary (flap/high lift/electronically synchronized), utility, stabilizer trim, and more. Of note is Parker’s development of patented jam-tolerant EMAs.
Electric motors and controllers – Motor and controller technology is at the core of many Parker solutions for more-electric and all-electric aircraft. Parker is developing families of motors and controllers to reduce cost and development time, while also looking at the newer high-power market needs for motors and controllers/inverters.
Integrated power management systems – These higher-voltage solid-state electric power distribution systems are required by the AAM market to address the higher-voltage power architectures noted below. 
Advanced thermal management solutions – Parker’s offering includes thermal management for electric motors and battery systems utilizing cooling pumps (ePumps), reservoirs, heat exchangers, valves, conveyance equipment, and more. This recent blog article explores the challenges and solutions available for eVTOL thermal management.
Vibration attenuation and motion control – Technologies that safely and securely attach the propulsion system and airframe equipment, while mitigating the effects of vibration, shock, and sound disturbances, providing longer equipment life and noise reduction.
Localized hydraulic powerpack solutions – When electric power solutions may not yet be feasible – flight controls for larger aircraft, for example – hydraulic powerpacks offer a robust, compact, and lighter-weight answer. This blog article provides a deeper dive into the benefits of hydraulic powerpacks.
Certification: where concepts meet reality
The AAM market is dynamic and changing rapidly. New ideas for platforms, infrastructure, and the technologies that make this exciting segment possible are surfacing daily.
Amid this excitement, these aircraft must be certified for their intended purpose, as do the systems and components that enable the platforms to execute their missions. Regulatory agencies such as the FAA and EASA are presently establishing the parameters under which AAM vehicles can be approved to fly.
Platform builders need to know that their partners have the engineering muscle and experience to not only design an innovative solution that meets requirements, but to also produce a solution that can be certified. This is where an experienced aerospace technology partner is crucial.
Over decades, Parker Aerospace has built thousands of certifiable components and systems for commercial and military aircraft. All Parker equipment is conceived and engineered to offer redundancy, safety, and reliability with the certification process in mind. Contributing to Parker’s track record of certification success is its state-of-the-art simulation capabilities, advanced test equipment, and thorough knowledge of global regulatory requirements.
Helping customers seize opportunity
As the market continues to ascend, Parker Aerospace and its AAM team are actively innovating to help customers take full advantage of these new and fast-changing opportunities.
To learn more about how Parker Aerospace innovation is shaping the AAM market, email the team at airmobility@parker.com.
Making the world a better place is in our DNA
As a trusted partner, Parker's team members work alongside customers to enable technology breakthroughs that change the world for the better. We help our customers and distribution partners meet the newest standards for safety or emissions, reduce power usage, improve efficiency, and move faster to optimize resources. Parker's Purpose is at the core of everything we do. Watch the introduction video with Parker's CEO Tom Williams.
This blog was contributed by Chris Frazer key account manager and UAM/eVTOL/AAM business development lead of Parker Aerospace.
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The future of air travel is evolving beyond fossil fuels with hybrid electric and all-electric aircraft leading the way. The growing need for low emissions and carbon neutrality has created a new focus on more electric aircraft (MEA), as aircraft original equipment manufacturers (OEMs) look to satisfy the growing needs of travelers while achieving the environmental goals being mandated around the world.
Power for all systems on conventional aircraft today is derived primarily from jet engines, fueled, of course, by fossil fuels. Engine gearbox-driven generators provide power for standard electrical equipment like avionics, lighting, and general cabin power. High-pressure engine bleed air is used to drive pneumatic systems such as cabin pressurization, anti-icing, and air conditioning. The engine gear box also drives hydraulic pumps for flight controls, landing gear, braking systems and door actuation as well as mechanical systems such as oil and fuel pumps. Parker Aerospace has a deep pedigree stretching back decades with sub-systems and components in conventional engines.
The evolution to MEA changes the way these systems are implemented. Whether it’s a more electric aircraft with jet engines, a hybrid electric, or a fully electric aircraft, mechanically-driven pumps for hydraulics, pneumatics, oil, and fuel will be replaced with fully electric pumps and actuators for everything including flight surface controls, environmental systems, and braking.
Initially, gas-powered engines will still drive the electric generators for these systems. Ultimately, gas turbine engines may be replaced entirely with fully electric motors and batteries. This migration will start small, with commuter transports and urban air mobility platforms first reaching the market.
Migration from hydraulic and pneumatic energy to electric energy requires improved power-handling capability and efficiency. System voltages for MEA will climb from 28VDC and 115VAC to upwards of 1,000VDC. This power will be delivered by a complex combination of generators and batteries and requires a highly advanced and flexible electrical distribution system capable of managing system needs.
Along with the increase in demand and capacity, the potential for significant damage during short or overload conditions must be recognized. For example, a 270V Li-Ion battery can deliver more than 2,000 amps into a short in a matter of microseconds. The typical electrical interfaces on today’s aircraft consist of mechanical relays and contactors, which are not fast enough to prevent fault propagation, and may even fuse during a fault event. This drives a need for an effective solution for high voltage, high-power buses with enhanced capability.
To answer that call, Parker Aerospace’s Fluid Systems Division has been developing a modular solid-state power controller (SSPC) for use as a standalone unit that is an electronic replacement for a relay or contactor. As part of a larger electrical distribution system, multiple SSPCs can be configured into a solid-state electrical distribution unit (SSEDU). Think of an SSPC as an individual circuit breaker whereas the SSEDU would be the entire circuit breaker box containing multiple breakers. An SSEDU can be configured with two or more SSPCs, with each SSPC being an individually controlled channel.
Utilizing advanced silicon carbide technology, Parker’s SSPC design is a modular architecture that yields the potential to accommodate multiple platform applications without costly redesigns and qualifications. Some features include:
An individual SSPC can be programmed and coordinated with other SSPCs to provide staggered power on/off configurations when used in a multi-channel configuration. Power sequencing, source and load isolation, power routing, and bi-directional flow for battery charge/discharge, can all be configured in the same SSEDU. Voltage, current, temperature and other performance and fault data is available for each SSPC.
The Parker Aerospace modular SSPC design provides benefits beyond the technical specifications. The initial concept was to provide the protection and control in a format that would allow scalability and flexibility in an electrical distribution system implementation. Taking advantage of the common SSPC design allows for:
Parker has completed testing of a first-generation, eight-channel SSEDU, with each channel configured for 270VDC and handling loads from 20 amps to 150 amps. The capability demonstrated included programmed and manual switch control, bolted short fault mitigation, startup and operational overcurrent protection, thermal efficiency with continuous loads, and bi-directional power flow on individual channels.
Current development on the second-generation SSPC will culminate with a two-channel unit in a more compact, thermally efficient, and lighter unit. This fully capable demonstrator will provide an example of how the Parker Aerospace SSPC and SSEDU can be utilized for multiple applications and configurations requiring the control, protection, and flexibility required to satisfy the needs of the new generation of more electric aircraft.
This blog was contributed by electronics engineering manager Andrew Walsh from the Fluid Systems Division of Parker Aerospace.
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11 Jun 2021
When people think of the Exotic Metals Forming Division, a division of Parker Aerospace, most think of manufacturing new parts for commercial and military aircraft programs. Many don’t know what happens to new hardware once it leaves the factory and is installed on new aircraft. For the Exotic Metals Forming Aircraft Services (EMFAS) team members, this is where the story begins.
In an ideal world, components from aerospace manufacturers — like pneumatic ducts, auxiliary power unit mufflers, engine exhaust plugs, nozzles, and other sheet metal parts — would last the lifetime of an airplane. A myriad of things that happen during the daily operation of an aircraft can impact this goal. For example, a baggage cart bangs into the engine exhaust plug. A duct is inadvertently dented during an engine change. A bellows flex joint prematurely wears. Or a technician accidentally damages a part. That’s where aftermarket services are critical to get planes back in the air. And that is one of the reasons Parker Aerospace acquired Exotic Metals in 2019.
An idle aircraft is an expensive and complex reality for airlines trying to serve thousands of people. When such an event occurs, the EMFAS team delivers on its mission to serve airline customers and keep their fleet of aircrafts doing what they are designed to do: move people and goods as seamlessly and safely as possible.
EMFAS team members work in a dynamic environment. Every day brings new adventures, issues, customers, and people. These technical experts find it rewarding to help customers solve problems, develop relationships, and work with people from nearly every continent.
Most service businesses are built on relationships. Customers consider a company only as good as its last order. EMFAS views itself as a service business rather than a company that manufactures a product. There are no long-term contracts and no ownership of the intellectual property on the parts they repair so they must perform at the highest level every time.
How often have you gone to the same restaurant, had a good experience, and then the next time the service and food are terrible? One bad experience might keep you from ever going back. It works the same way with the aircraft services business. One bad experience can cost a customer’s business forever.
Since 2002, the EMFAS team has had an excellent performance track record with customers. In the first year of operation, EMFAS had five customers; today it has more than 250. EMFAS is a successful team that supports partners internally and externally. With the full support of Parker, EMFAS is just getting started, and the brightest times are ahead.
This blog was contributed by Chris Capuano of Exotic Metals Forming Division Aircraft Services.
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25 May 2021
With an increased focus on strengthening United States military capabilities for the 21st century, Parker Aerospace takes pride in having a long history supporting the country’s defense endeavors around the world with flight-critical components. One of Parker’s most essential product lines for military aircraft is its aerial refueling equipment.
In-flight refueling couplers, nozzles, receptacles, and test kits from Parker Aerospace’s Fluid Systems Division represent today’s leading edge in design, performance, and durability.
The division produces two standard systems for aerial refueling:
• Boom nozzle and receptacle system
• Probe-and-drogue system
The boom nozzle and receptacle are the interface traditionally adapted for Air Force applications including strike aircraft, tankers and transports, while the probe-and-drogue are traditionally adapted for Navy/Marine strike aircraft and military trainers.
Staying on target non-stop
Aerial refueling is the process by which an aircraft is loaded with fuel mid-air while still in flight. The crucial operation allows military craft to fly prolonged maneuvers and reconnaissance missions. In some cases, our inflight refueling equipment has been incorporated into platforms derived from commercial aircraft. One noteworthy example is the Boeing 747-200 used for Air Force One.
Parker’s development of in-flight refueling equipment began more than 55 years ago with Lockheed Martin’s reconnaissance aircraft, the SR71 Blackbird (1964). Parker designed the aerial refueling receptacle for this historic aircraft. After advancing early variants of a universal aerial refueling receptacle slipway installation (UARRSI) for the development of the Rockwell B-1 Lancer and the Fairchild A-10 Thunderbolt, Parker’s expertise was again put to use on the refueling receptacle for another U.S. fighter jet. In those early days of evolving aerial refueling solutions, Parker augmented its knowledge base through the strategic acquisition of Schultz Tool and Manufacturing in 1971 a company that had designed receptacles for the F-111 Aardvark, the C-5 Galaxy, and the A-7 Corsair II.
In 1997, Parker again advanced its air-to-air offerings and necessary ground test equipment by acquiring the aerial refueling product line from XAR Industries in California. The company had previously provided aerial refueling product designs for Lockheed Martin’s F-16, F-117, and F-22 as well as Universal Aerial Refueling Receptacle (UARRSI) variants.
Building on the technologies and applications from Parker, Shultz and XAR, our teams developed a unique receptacle and slipway assembly for the B-2 program. Since this time, Parker has subsequently designed multiple derivatives of the UARRSI and application-specific receptacles for several programs including the F-22 and F-35 programs.
Utah Air National Guard members from the 191st Air Refueling Squadron execute an air refueling mission from a KC-135 Stratotanker. A B-2 Spirit from the 509th Bomb Wing at Whiteman AFB, Missouri participated during this training mission. Video by Staff Sgt. Erin Mills.
The multi-purpose UARRSI convenience and adaptability
In 1976, Parker introduced an improved universal aerial refueling receptacle slipway installation (UARRSI) which has proven to be Parker’s most versatile piece of aerial refueling equipment. UARRSI adapts to aircraft that require a nozzle and receptacle-type apparatus. The unit features a lighted slipway and voice command functionality to facilitate the fuel transferring process. UARRSIs are used on military aircraft including the Boeing C-17, McDonnell Douglas KC-10, the Airbus A330 MRTT, and the Boeing GTTA, P-8A, and the 737 AEW&C E-7 Wedgetail.
Parker’s aerial refueling ground test kits are used to evaluate at the aircraft or component levels, along with the voice inter-communication capability. This testing function allows engineers to assess specific status modes (connect and disconnect), as well as alignment and engagement states of the equipment. Parker’s product line conforms to original equipment manufacturing (OEM) specifications, U.S. military standards, and additional requirements developed by the Aerial Refueling Systems Advisory Group (ARSAG) and other like agencies.
The future of in-flight refueling technology is now taking off in innovative directions, with a renewed emphasis on safety and efficiency. Aerial refueling for helicopters and unmanned aerial vehicles (UAVs) is also an active field of development. As the technology evolves, customers may see updated offerings from Parker based on our extensive pedigree, and our always-advancing capabilities.
To learn more about the capabilities of Parker's Fluid Systems Division, please visit our website.
This blog was contributed by the engineering team from the Fluid Systems Division of Parker Aerospace.
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11 May 2021
Exotic Metals Forming Division began in 1963 with the creation of titanium sheet metal flanges. Today, the organization continues to be a leader in the forming of specialty metals in the aerospace industry as an expert using titanium and nickel alloys. These high-strength metals are corrosion resistant at high temperatures, making them ideal for aerospace applications. Also, these materials’ characteristics make them difficult to form, requiring specialized infrastructure and innovative proprietary processes. Exotic continues to refine and develop ways to form these alloys using specialized manufacturing processes.
Exotic employs a cradle-to-grave engineering philosophy. Engineers take a project from concept to full-rate production and support throughout the product lifecycle. A project begins with the engineering team providing technical leadership in quoting, manufacturing design, process development, and tooling design. Engineers use the latest CAD and simulation software, including Siemens NX and ANSYS. They develop tooling processes and work with our in-house tool and die shop.
Customer focus and quality are key components of the cradle-to-grave engineering philosophy. Engineer teams work collaboratively in all stages of process development. With forward-thinking, a collaborative mindset, and advanced technology, the engineering teams create manufacturing processes and product design solutions that best match our customers' needs.
The following are examples of the manufacturing technology, equipment, tools, and the process followed to form, trim, and assemble parts today and how Exotic works to advance their technology for the future.
Exotic first used an axial load bulge in the forming process. Bulge forming seals raw material inside of a die cavity and is pressurized until the raw material takes the shape of the die cavity.
Hydroforming uses a pressurized bladder that pushes a flat piece of raw material into a contoured die cavity. The contoured punch is also used to force a flat piece of raw material into the pressurized bladder, forming it to the punch contour.
Exotic uses many other processes to turn raw material into a complete part. Raw material arrives as sheet stock, which may be rolled and welded into tubing using an automated longitudinal seam welder or cut into a dimension blank using a flat pattern laser or waterjet. To form successfully, Exotic has developed welding techniques to optimize the formability of welds.
Several unique forming processes are used at Exotic. One of those processes is superplastic forming. A piece of raw material and die are heated until the raw material is in a superplastic state. One side of the die is then pressurized using gas to force the raw material into the contour on the other half of the die.
Manufacturing technology: material trimming
The teams at Exotic have developed industry-leading capability and knowledge in the area of laser trimming. Primary trimming tools at Exotic are a suite of six-axis laser cutters. The lasers are capable of a high average power output, which allows for quick continuous cuts. These tools are used in trimming formed subassemblies and final processing of assemblies.
Manufacturing technology: assembly
A variety of welding processes are used at Exotic to join details to form complete assemblies. The following types of welding processes are used to create complex assemblies; tungsten inert gas (TIG) welding performed manually and automated, seam, laser, and plasma welding.
Manual riveting is used at Exotic alongside robotic-riveter machines to automatically drill, countersink fastener holes, load, and squeeze rivets for assembly with fasteners.
Development of technology at Exotic
The advanced technology and automation team at Exotic is dedicated to developing new technologies to improve manufacturing processes continuously. Examples include retrofitting manual-operated forming equipment with electronic controls; improving the accuracy of forming operations; installing a robotic parts mover to deliver material around facilities without human involvement; and incorporating additive manufacturing into the growing list of capabilities.
The Exotic engineering and manufacturing teams remain committed to pushing the boundaries of what's possible by developing new processes and technologies to maintain our position as the industry leader in sheet metal assembly fabrication. Exotic celebrates our past, enjoys the present, and looks forward to the future.
Article contributed by members of the Engineering Team at Exotic Metals Forming Division.
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