MRO & Manufacturing
DLR Tests Rotor Technology to Reduce Helicopter Noise and Vibration
DLR’s STAR project uses piezoceramic actuators to reduce helicopter noise by 7 dB and vibrations by 50% in wind tunnel tests.

This article is based on an official press release from the German Aerospace Center (DLR).
DLR Successfully Tests “Artificial Muscles” to Slash Helicopters Noise and Vibration
Researchers at the German Aerospace Center (DLR), in collaboration with a consortium of international aerospace agencies, have successfully demonstrated a new rotor technology capable of significantly reducing helicopter noise and vibration. The breakthrough, achieved under the Smart Twisting Active Rotor (STAR) project, utilizes “artificial muscles” to actively twist rotor blades during flight without the need for heavy mechanical components.
According to the DLR, wind tunnel tests conducted in late 2025 confirmed that the system reduces noise during the critical landing phase by up to 7 decibels (dB) and cuts hub vibrations by more than 50 percent. These results mark a significant step forward for rotorcraft engineering, particularly for the emerging Urban Air Mobility (UAM) sector where noise pollution is a primary barrier to adoption.
The STAR Project: How Active Twisting Works
Traditional helicopter rotors rely on complex mechanical linkages, swashplates, and hydraulic systems to change blade pitch. While effective for basic flight control, these systems are often too slow or heavy to counteract the rapid, complex aerodynamic interactions that generate the characteristic “whop-whop” sound of a helicopter, known as Blade-Vortex Interaction (BVI).
The STAR project takes a fundamentally different approach. Instead of mechanical flaps, the rotor blades are equipped with piezoceramic actuators integrated directly into the blade skin. When an electrical voltage is applied, these actuators expand or contract, functioning like artificial muscles to twist the blade.
Static and Dynamic Control
The DLR reports that this system allows for both static and dynamic twisting. Static twisting adjusts the blade for general flight regimes, such as hovering or cruising. However, the system’s true innovation lies in its dynamic capabilities. The actuators can twist the blades hundreds of times per second, allowing the rotor to adapt instantaneously to changing airflow and neutralize the aerodynamic shocks that cause noise and vibration.
“The special thing about this approach is that the active twisting of a rotor blade requires no mechanical components and is only minimally affected by the centrifugal forces acting on the rotor blades.”
, Berend Gerdes van der Wall, Project Manager at DLR Institute of Flight Systems
Wind Tunnel Results: Efficiency and Comfort
The technology was validated during a three-week campaign at the Large Low-Speed Facility (LLF) of the German-Dutch Wind Tunnels (DNW) in the Netherlands. The team utilized a four-meter diameter model rotor, a 40 percent scale model of a BO 105 helicopter rotor, to gather acoustic and aerodynamic data.
Significant Noise Reduction
Data collected during the tests revealed a noise reduction of up to 7 dB during descent. In acoustic terms, a reduction of this magnitude corresponds to cutting the perceived noise intensity by more than half for observers on the ground. This reduction is critical for operations over populated areas, where landing noise is often the most disruptive phase of flight.
Vibration Dampening
In addition to acoustic benefits, the system demonstrated a massive improvement in ride quality. Vibrations acting on the rotor hub were reduced by over 50 percent. According to the project data, this reduction not only improves passenger comfort but also decreases mechanical stress on the aircraft, potentially extending the lifespan of critical components.
“The results show that efficiency increased while noise and vibration were significantly reduced. During the measurement campaign, we were able to successfully test our concept in a realistic environment.”
, Berend Gerdes van der Wall, DLR
International Collaboration
While led by DLR, the STAR project represents a major global effort in aerospace research. The technology was developed and tested with contributions from several leading organizations, ensuring the data is validated across different engineering standards.
The consortium includes:
- NASA and the U.S. Army (USA)
- ONERA (France)
- JAXA (Japan)
- KARI and Konkuk University (South Korea)
- DNW (German-Dutch Wind Tunnels)
AirPro News Analysis
The success of the STAR project has implications far beyond traditional helicopters. As the aviation industry pivots toward eVTOL vehicles for air taxis, noise remains the single largest hurdle to regulations approval and public acceptance. A 7 dB reduction is not merely an incremental improvement; it could be the difference between a vertiport being approved in a city center or being pushed to the outskirts.
Furthermore, the elimination of mechanical parts in favor of solid-state piezoceramic actuators aligns with the industry’s push for lower maintenance costs. If this technology scales effectively from the 40 percent model to full-size aircraft, we expect to see “active twisting” blades become a standard feature in next-generation military and civilian rotorcraft.
Frequently Asked Questions
What is the primary benefit of the STAR rotor system?
The system reduces helicopter noise by up to 7 dB and vibrations by over 50 percent without using heavy mechanical parts.
How does the blade twist without mechanics?
It uses piezoceramic actuators embedded in the blade skin. These “artificial muscles” deform when voltage is applied, twisting the blade structure.
Who was involved in the testing?
The project was led by DLR (Germany) with partners including NASA, the U.S. Army, ONERA, JAXA, KARI, Konkuk University, and DNW.
Sources
Photo Credit: DLR
MRO & Manufacturing
Barfield and JetBlue Sign 5-Year Component Repair Agreement
Barfield and JetBlue sign a five-year agreement for Airbus A320 and A321 component repairs, supporting fleet modernization and drone inspections.

Barfield and JetBlue Sign 5-Year Component Repair Agreement Amid Fleet Modernization
On April 22, 2026, Barfield, an American subsidiary of Air France Industries KLM Engineering & Maintenance (AFI KLM E&M), officially announced the signing of a five-year component repair agreement with JetBlue. According to the company’s press release, the contract covers comprehensive component repair, engineering, and logistics support for JetBlue’s extensive fleet of Airbus A320 and A321 Commercial-Aircraft.
The announcement, which coincides with the MRO Americas 2026 event in Orlando, Florida, secures critical maintenance, repair, and overhaul (MRO) support for the backbone of JetBlue’s operations. As the aviation industry continues to navigate global supply chain constraints, long-term agreements of this nature are increasingly vital for maintaining dispatch reliability.
This renewed contract extends a multi-decade relationship between the two aviation entities. By leveraging Barfield’s established infrastructure and in-house repair capabilities, JetBlue aims to keep its aircraft flying safely and on schedule while mitigating the impact of industry-wide parts shortages.
Deepening a Decade-Long Partnership
The collaboration between Barfield and JetBlue spans well over a decade. Industry research notes that the two companies previously signed a similar long-term agreement in 2016, which covered component repairs on a flight-hour basis for JetBlue’s Airbus fleet. That prior agreement was highly regarded by JetBlue leadership for delivering competitive and reliable maintenance solutions.
In the official press release, Gilles Mercier, Chief Executive Officer of Barfield, emphasized the mutual trust that has defined the partnership:
“We are excited to expand our work with JetBlue through this agreement. Their continued trust, firmly anchored in the quality and reliability of our services, that is deeply valued by the entire Barfield team. We take immense pride in the dedication and expertise of our team members, and we are pleased to see this partnership continue to grow together.”
Corporate Backing and Infrastructure
Founded in 1945, Barfield recently celebrated its 80th anniversary in 2025. The company operates four primary U.S. facilities located in Miami, Phoenix, Louisville, and Atlanta. According to industry background data, Barfield was fully acquired by AFI KLM E&M in 2014. This integration provides the American subsidiary with the financial backing, shared technical resources, and global supply chain network of a major international MRO provider that employs over 14,000 people worldwide.
Supporting JetBlue’s All-Airbus Fleet
Fleet Modernization and Maintenance Needs
The timing of this agreement is particularly strategic for JetBlue. Based on industry fleet data, JetBlue officially retired its last Embraer E190 aircraft in September 2025, completing its transition to a streamlined, all-Airbus fleet consisting of the A220, A320, and A321 families.
The A320 and A321 families constitute the vast majority of JetBlue’s current operations. As of late 2025, research indicates the Airlines operated approximately 130 older-generation A320-200s, 63 A321-200s, and a growing sub-fleet of over 48 next-generation A321neo and A321LR aircraft. Maintaining this mixed fleet, which includes aging A320ceos averaging over 20 years old alongside brand-new A321neos, requires a highly adaptable MRO partner. Barfield’s ability to develop alternative, approved repair procedures in-house makes it uniquely positioned to support these diverse maintenance requirements.
Technological Advancements and Drones Inspections
The Donecle Partnership
Beyond traditional component repair, the partnership between Barfield and JetBlue is expanding into next-generation digital maintenance tools. Concurrently announced at MRO Americas in April 2026, JetBlue signed a deal with French drone inspection provider Donecle to conduct automated fleetwide scans of its A220 and A320 family aircraft.
Because Barfield serves as Donecle’s official distributor in the Americas, it will provide the essential technical and logistical support for JetBlue as the airline rolls out these automated drones at key stations in Boston, New York, and Orlando. This development highlights Barfield’s evolution from a traditional component repair shop to a facilitator of advanced aviation technology.
Predictive Analytics Integration
JetBlue is also heavily investing in predictive maintenance technology. Alongside the Barfield and Donecle agreements, industry reports confirm that JetBlue plans to roll out the Airbus Skywise Fleet Performance+ predictive analytics platform across its A320 and A220 fleets to preemptively address maintenance issues before they cause operational disruptions.
This forward-looking approach aligns with Barfield’s own strategic direction. In a late 2025 interview cited in recent industry research, CEO Gilles Mercier outlined the company’s focus on innovation:
“We develop our own approved repair solutions to better serve our customers and keep aircraft flying… We’re not just looking back, we’re modernizing our shops, adopting new technologies, and preparing for next-generation aircraft.”
AirPro News analysis
At AirPro News, we observe that as airlines finalize their post-pandemic fleet transitions, securing reliable maintenance for core aircraft families is becoming their top operational priority. JetBlue’s decision to lock in a five-year agreement with a globally-backed MRO like Barfield is a calculated move to insulate its operations from ongoing global parts shortages and engine maintenance bottlenecks. Furthermore, by tying traditional component repair contracts together with futuristic drone inspection rollouts, JetBlue is demonstrating a comprehensive, multi-layered approach to fleet reliability that will likely serve as a blueprint for other major carriers in the coming years.
Frequently Asked Questions (FAQ)
- What aircraft are covered under the new Barfield and JetBlue agreement?
The five-year component repair agreement covers JetBlue’s Airbus A320 and A321 fleet. - When did JetBlue transition to an all-Airbus fleet?
According to industry data, JetBlue completed its transition to an all-Airbus fleet in September 2025 following the retirement of its last Embraer E190 aircraft. - What role does Barfield play in JetBlue’s new drone inspections?
Barfield is the official Americas distributor for Donecle, the French drone inspection provider JetBlue is using. Barfield will provide technical and logistical support for the drone rollout at key JetBlue stations.
Sources
- Barfield (AFI KLM E&M) Official Press Release
- AirPro News Industry Research & Fleet Data
Photo Credit: Air France Industries KLM Engineering & Maintenance
MRO & Manufacturing
Swiss Airlines First in Europe to Retrofit Overhead Bins with Diehl MLS
Swiss International Air Lines installs Diehl Aviation’s Mechanical Lift System on Airbus A350, easing overhead bin closing by 30% without reducing storage space.

This article is based on an official press release from Diehl Aviation.
Swiss International Air Lines (SWISS) has become the first European carrier to implement Diehl Aviation’s Mechanical Lift System (MLS), a new retrofit designed to make closing overhead bins significantly easier for cabin crews. According to a recent press release from Diehl Aviation, the inaugural installation was successfully completed on a SWISS Airbus A350 aircraft, signaling the beginning of a broader fleet-wide rollout.
The modification aims to address a common ergonomic challenge faced by flight attendants, particularly on long-haul routes where passengers frequently board with heavy carry-on luggage. By reducing the physical exertion required to secure the cabin before takeoff, the system promises to improve daily working conditions for crew members.
Easing the Burden for Cabin Crews
Mechanical Lift System Details
The core advantage of the Mechanical Lift System is its ability to decrease the force needed to push overhead bins closed by up to 30 percent, as stated in the Diehl Aviation release. This reduction is achieved entirely through mechanical means, avoiding the complexity and potential failure points associated with electrical components.
Because the system operates without electricity, Diehl Aviation notes that it remains highly reliable and straightforward to maintain during standard airline operations. For flight attendants, the 30 percent reduction in lifting force translates to less physical strain during the demanding boarding and cabin preparation phases.
Retrofit Process and Fleet Rollout
Seamless Integration
A key feature of the MLS is its design as a dedicated retrofit solution. The company confirmed that the system can be integrated into existing overhead bins without changing the overall cabin architecture or sacrificing any stowage volume. This allows airlines to upgrade their current interiors without undertaking a massive cabin overhaul.
The initial installation on the SWISS Airbus A350 was executed collaboratively by SWISS TechOps and specialists from Diehl Aviation’s Customer Service and On-Site Support teams. The process involved structural adjustments to the bins and housings, followed by reinstallation. To ensure a smooth transition, Diehl Aviation provided hands-on training to SWISS engineering staff, enabling the local maintenance organization to manage future modifications efficiently.
“With the Mechanical Lift System, we deliver practical operational improvements to aircraft already in service,” said Jörg Schuler, CEO of Diehl Aviation. “Drawing on decades of service and aftermarket experience, we provide solutions that directly benefit airlines and their crews. In this case, the system reduces physical workload, fits seamlessly into existing cabins, and maintains operational reliability, showing our holistic approach to enhancing in-service aircraft.”
AirPro News analysis
We note that the introduction of the Mechanical Lift System highlights a growing industry focus on crew ergonomics and workplace safety. As carry-on baggage allowances and passenger habits lead to heavier overhead bins, cabin crews face increased risks of repetitive strain injuries. Solutions like the MLS address these occupational hazards directly.
Furthermore, the fact that this system can be installed during regular maintenance windows without reducing bin capacity makes it an attractive proposition for airlines looking to modernize aging fleets. Diehl Aviation indicated that a U.S. airline also began retrofitting its fleet with the MLS last year, suggesting that international demand for crew-centric, low-downtime cabin upgrades is steadily increasing.
Frequently Asked Questions
What is the Mechanical Lift System (MLS)?
The MLS is a purely mechanical retrofit solution developed by Diehl Aviation that reduces the force required to close aircraft overhead bins by up to 30 percent.
Which airline is the first in Europe to use the MLS?
Swiss International Air Lines (SWISS) is the first European carrier to install the system, beginning with an Airbus A350 aircraft.
Does the MLS reduce overhead bin storage space?
No. According to Diehl Aviation, the system integrates into existing bins without altering the cabin architecture or reducing the available stowage volume.
Sources
Photo Credit: Diehl Aviation
MRO & Manufacturing
SureFlight Opens New Utah Facility Expanding Aircraft Completions
SureFlight launches a new Utah facility near Spanish Fork Airport, doubling interior capacity and planning full-service West Coast expansion amid airport growth.

This article is based on an official press release from SureFlight Aircraft Completions via Business Wire, supplemented by verified industry research data.
SureFlight Aircraft Completions, a Pennsylvania-based aviation refurbishment specialist, has officially announced the opening of its second facility. Located in Springville, Utah, adjacent to the Spanish Fork Municipal Airport (KSPK), the new operation marks a significant westward expansion for the company. According to the official press release, this new location will initially specialize in fixed-wing and rotorcraft custom interior and upholstery projects.
Founded in 2009 and headquartered at the Chester County G.O. Carlson Airport (KMQS) in Coatesville, Pennsylvania, SureFlight has built a reputation as a premier one-stop shop for aircraft paint, interior, and avionics completions. The company operates as an ISO 9001:2008 and AS9100 quality-certified FAA Repair Station. By opening the Utah facility, SureFlight effectively doubles its interior completion capacity while establishing a critical foothold to serve the western United States.
We understand from the company’s announcements that this interior shop is merely the first phase of a broader strategic vision. SureFlight intends to eventually replicate its comprehensive Pennsylvania capabilities, which include exterior paint and avionics, on the West Coast to meet surging customer demand.
Strategic West Coast Expansion
Establishing a Utah Foothold
The decision to expand into Utah was driven by a need to better serve a growing national client base. The Springville facility is already actively working with customers across Utah, Idaho, and Wyoming, as well as servicing regional airports such as SkyPark, Provo, Heber City, and Ogden. According to the company’s press release, SureFlight’s target market includes regional repair stations, aircraft suppliers, Original Equipment Manufacturers (OEMs), and direct owner-operators.
To ensure continuity of quality, SureFlight relocated key personnel to the new facility. DeWitte Binkley, General Manager of SureFlight and recipient of the Helicopter Association International 2019 Salute to Excellence Lifetime Achievement Award, emphasized the importance of maintaining standards during the transition.
“When looking to expand our geographic footprint, it was imperative to guarantee customers with the same unparalleled talent, precision, and quality,” Binkley stated in the press release.
Binkley further noted that Master Upholsterer Dave Thompson has relocated to Utah to lead the local operations, providing convenient service to the regional aviation community while simultaneously doubling the company’s capacity for East Coast clients.
Community Integration
Beyond commercial operations, SureFlight is actively integrating into the local Utah aviation community. The press release highlights that the company is volunteering to restore a World War II-era A-26 Invader aircraft, joining local FAA enthusiast groups, and exhibiting at the Spanish Fork Airport airshow.
Replicating Pennsylvania’s Capabilities
From Bi-Coastal Projects to Full Service
To commemorate the expansion, SureFlight recently completed its first bi-coastal refurbishment project. The company successfully overhauled a Beechcraft 390 Premier twinjet, which received a full interior, exterior paint, and avionics upgrade. This project serves as a proof-of-concept for the company’s long-term operational goals.
Owen Watkins, Co-Founder and President of SureFlight, outlined the company’s trajectory in the official announcement.
“Our West Coast aviation interiors operation is the natural evolution of our business to meet growing customer demands across the United States,” said Watkins.
Currently, SureFlight’s Pennsylvania headquarters boasts a 34,000-square-foot facility equipped with a temperature-controlled Double Down Draft Paint Hangar capable of accommodating two Sikorsky S-92 airframes side-by-side or up to a Hawker 800. Their interior completion centers utilize high-end German-made Duerkopp-Adler sewing machines and digital leather skiving machines. The long-term strategic plan, according to Watkins, is to bring these exact state-of-the-art exterior paint and avionics capabilities to the Spanish Fork airport.
The Spanish Fork Airport Boom
A Strategic Location for Aviation Growth
SureFlight’s arrival in Utah coincides with a period of explosive growth at the Spanish Fork Municipal Airport (Woodhouse Field). According to supplementary industry research data, aircraft operations at the airport surged from 31,581 in 2018 to nearly 75,000 in 2023. Projections indicate that operations will exceed 115,000 by the end of 2024.
This surge in air traffic is supported by massive infrastructure investments. Research data highlights two major developments: the $48 million Utah Aviation Business Park, which is adding 26 new hangars, and the $100 million Patey Aviation Business Park, which will add 66 hangars in its first phase alone. Furthermore, to accommodate this rapid expansion, the FAA is funding the construction of a full-length parallel taxiway (Taxiway Bravo), which is expected to begin construction by 2026.
AirPro News analysis
We view SureFlight’s selection of the Spanish Fork area as a highly calculated macroeconomic maneuver. By positioning its second facility adjacent to an airport undergoing over $148 million in private and public infrastructure investment, SureFlight is embedding itself in one of the fastest-growing aviation hubs in the western United States. The influx of new hangars at the Patey and Utah Aviation Business Parks will inevitably bring a high volume of aircraft owners and operators directly to SureFlight’s doorstep. As the FAA continues to support the airport’s growth with projects like Taxiway Bravo, SureFlight’s phased approach, starting with interiors and eventually expanding to paint and avionics, allows the company to scale its operations in tandem with the airport’s rising capacity.
Frequently Asked Questions (FAQ)
Where is SureFlight Aircraft Completions’ new facility located?
The new facility is located in Springville, Utah, adjacent to the Spanish Fork Municipal Airport (KSPK).
What services does the new Utah location currently offer?
Currently, the Utah facility specializes in fixed-wing and rotorcraft custom interior and upholstery projects.
What are SureFlight’s long-term plans for the West Coast?
The company plans to eventually replicate its full suite of Pennsylvania capabilities in Utah, which includes exterior aircraft paint and comprehensive avionics installations and troubleshooting.
Why is the Spanish Fork Airport expanding?
The airport is experiencing a massive increase in aircraft operations, prompting over $148 million in investments for new aviation business parks and FAA-funded infrastructure improvements like a new parallel taxiway.
Sources:
SureFlight Aircraft Completions Press Release (Business Wire)
Photo Credit: SureFlight Aircraft Completions
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