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Rotron Aerospace and LIG Nex1 Sign Deal to Develop Next-Gen UAVs

Rotron Aerospace and LIG Nex1 partner to co-develop hybrid VTOL UAV platforms for South Korea’s Army, emphasizing heavy-fuel rotary engine tech.

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This article is based on an official press release from Rotron Aerospace and LIG Nex1.

Rotron Aerospace and LIG Nex1 Sign Strategic Deal for Next-Gen UAV Propulsion

On December 9, 2025, UK-based propulsion specialist Rotron Aerospace and South Korean defense prime LIG Nex1 formalized a significant strategic partnership. Signed at Rotron’s headquarters in Dorset, United Kingdom, the Memorandum of Understanding (MoU) establishes a long-term collaboration aimed at co-developing next-generation unmanned aerial vehicle (UAV) platforms. The agreement, which remains valid until 2032, focuses primarily on the Medium UAV Common Platform (MUCP), a tactical hybrid drone program designed for the Republic of Korea Army (RoKA).

According to the joint announcement, this collaboration leverages the specific strengths of both nations’ defense industries. Rotron Aerospace will supply its advanced heavy-fuel rotary propulsion systems, while LIG Nex1 will lead the system architecture, platform integration, and overall program management. The deal underscores the deepening defense ties between the United Kingdom and South Korea following the 2023 Downing Street Accord.

The Medium UAV Common Platform (MUCP)

The centerpiece of this agreement is the MUCP, a hybrid Vertical Take-Off and Landing (VTOL) drone intended for Intelligence, Surveillance, and Reconnaissance (ISR) missions. LIG Nex1, having been awarded the tender by South Korea’s Defense Acquisition Program Administration (DAPA) in August 2024, is moving rapidly toward flight testing, which is expected to commence in 2026.

The platform utilizes a hybrid configuration featuring four fixed rotors for vertical lift and a single pusher propeller for forward flight. This design eliminates the need for runways while maintaining the endurance and speed associated with fixed-wing aircraft. According to technical specifications released regarding the program, the MUCP targets a Maximum Take-Off Weight (MTOW) of approximately 340 kg and a payload capacity of 30 kg.

Propulsion Technology

Rotron’s contribution is critical to the platform’s performance. The company specializes in Wankel-type rotary engines, which are favored in the UAV sector for their high power-to-weight ratio and low vibration profiles, essential characteristics for stabilizing sensitive ISR sensors. Crucially, Rotron has engineered these engines to operate reliably on heavy fuels such as JP-8 and Jet-A1, meeting the NATO Single Fuel Policy requirements that simplify military logistics.

“Rotron is proud to partner with LIG Nex1… This agreement reflects our commitment to delivering high-performance propulsion and aviation systems that enhance the capability, reliability, and operational reach of next-generation unmanned platforms.”

Gilo Cardozo, CTO & Founder, Rotron Aerospace

Strategic Implications and Export Goals

While the immediate focus is the domestic South Korean market, both companies have explicitly stated their intention to target global exports, specifically within the Pacific Rim and Europe. The partnership allows LIG Nex1 to secure a sovereign supply chain for critical propulsion components while providing Rotron access to major Asian defense markets.

Yoon Kwan-seob, Vice President of Aerospace & Drone Business at LIG Nex1, highlighted the synergy between the two firms in a statement regarding the signing:

“By combining our experience in integrated system development with Rotron’s leading propulsion technologies, we aim to advance the Medium UAV Common Platform and expand opportunities for both domestic Republic of Korea programmes and international exports.”

Yoon Kwan-seob, VP of Aerospace & Drone Business, LIG Nex1

AirPro News Analysis

The selection of Rotron for the MUCP program highlights a persistent engineering bottleneck in the tactical UAV sector: the heavy-fuel requirement. While battery technology has improved, it still lacks the energy density required for the 5+ hour endurance missions targeted by the MUCP. Furthermore, traditional piston engines often struggle with the combustion characteristics of heavy military fuels like JP-8, particularly in smaller form factors.

By integrating Rotron’s rotary technology, LIG Nex1 appears to be prioritizing reliability and logistical commonality over the simplicity of electric-only systems. This hybrid approach, using electric lift for VTOL and heavy-fuel combustion for cruise, is becoming the standard architecture for modern tactical drones (Group 3 UAVs) that require runway independence without sacrificing range.

Sources

Sources: Satellite Evolution Group

Photo Credit: Satellite Evolution Group

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UAV & Drones

Viasat Expands Velaris Ecosystem with L2 Aviation for Advanced Air Mobility

Viasat, Galaxy 1, and L2 Aviation partner to integrate certified satellite connectivity for safe, regulated Advanced Air Mobility operations.

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This article is based on an official press release from Viasat.

On May 5, 2026, global satellite communications leader Viasat Inc. announced a strategic expansion of its Velaris ecosystem. According to a company press release, L2 Aviation has officially joined the network through Galaxy 1 Communications. This tripartite Partnerships aims to accelerate the deployment of Advanced Air Mobility (AAM) and uncrewed aircraft systems (UAS) by integrating satellite connectivity into certified Avionics architectures.

For the AAM sector, the focus is rapidly shifting from proving that electric vertical takeoff and landing (eVTOL) aircraft can fly to ensuring they can operate safely and legally within regulated airspace. As noted in the official announcement, achieving this scale requires highly reliable, certified communication systems for command and control.

By bringing L2 Aviation into the fold, Viasat and Galaxy 1 are directly addressing the rigorous airworthiness standards demanded by aviation regulators such as the FAA and EASA. We see this collaboration as a critical step in moving the industry from technical feasibility demonstrations to routine, commercial flights.

Bridging the Certification Gap in Advanced Air Mobility

The AAM and UAS sectors have spent recent years successfully demonstrating the technical viability of next-generation aircraft. However, the next major hurdle is scaling these operations safely. According to the Viasat press release, this requires moving beyond basic connectivity to deliver systems that meet strict regulatory standards for airspace integration.

The Role of the Velaris Ecosystem

Velaris is Viasat’s dedicated global satellite connectivity network designed specifically for uncrewed and emerging aircraft. It provides the essential operational data links and command-and-control capabilities required for safe flight. The Velaris ecosystem connects service, integration, and connectivity partners to help operators transition from early deployments to fully compliant operations.

In March 2026, Galaxy 1 Communications partnered with Viasat to expand Velaris using a Distribution Partner-as-a-Service (DPaaS) model. Rather than acting as a traditional distributor, Galaxy 1 provides a managed operational layer that handles provisioning, billing, compliance oversight, and integration. Galaxy 1 brings over 20 years of expertise in managed satellite connectivity and secure IoT enablement to the table.

Integrating Decades of Avionics Expertise

L2 Aviation brings nearly 30 years of experience in avionics design, engineering, certification, manufacturing, and installation to the partnership. The company has a long history of delivering safety-critical aircraft modifications across commercial, business, cargo, and military fleets, specializing in Supplemental Type Certificate (STC) development.

In this new collaboration, L2 Aviation will apply its expertise to support the integration and certification of satellite communications for UAS and AAM platforms. This ensures that the connectivity hardware meets the strict airworthiness and certification standards required for routine flights.

Industry Perspectives

Executives from all three companies emphasized the importance of certification and scalability in the official release, noting that the industry must move beyond capability demonstrations.

“Right now the industry is focused on what it will take to enable routine, regulated AAM operations: so it is clear that certification ready connectivity and avionics integration must advance together. Bringing L2 Aviation into the Velaris ecosystem through G1 reflects that shift from proving concepts to building operational capability. Their experience strengthens how Velaris supports the next phase of AAM deployment, where safety, certification, and scalability are immediate priorities.”
, Joel Klooster, SVP Aircraft Operations and Safety at Viasat

“Advanced Air Mobility will not scale on capability alone. It will scale when that capability is engineered into certified, operational systems that regulators trust and operators can rely on every day. Our role within the Velaris ecosystem is to integrate satellite connectivity into avionics architectures that meet real-world certification standards. Working alongside Viasat Inc. and Galaxy 1 Communications, we are focused on delivering systems that are certifiable, scalable, and ready to support routine AAM and uncrewed operations.”
, Tony Bailey, President and Chief Operating Officer at L2 Aviation

“Advancing safe, scalable UAV and AAM operations requires more than just connectivity, it demands a fully integrated, certifiable ecosystem. Our programme is focused on delivering exactly that, combining resilient multi-network communications with the operational frameworks needed for regulated flight. Bringing on board L2 Aviation as a partner is a significant step forward. Their deep expertise in avionics integration and certification strengthens our ability to support airworthiness, compliance, and system interoperability, helping accelerate the path from innovation to real-world, commercially viable deployment.”
, Gino Jensen, Chief Technology Officer at Galaxy 1 Communications

Looking Ahead

AirPro News analysis

We observe that the central theme of this development is the transition from innovation to regulation. While engineering a flying taxi or an advanced drone is a monumental technical achievement, securing the legal certification to fly these vehicles over populated areas requires bulletproof, certified communication systems. This partnership directly addresses what we identify as the “certification bottleneck” in the AAM industry.

Furthermore, this announcement highlights the power of ecosystems in emerging aviation sectors. No single company can launch the AAM industry alone. Viasat provides the satellite network infrastructure, Galaxy 1 delivers the operational and management framework, and L2 Aviation supplies the physical, certified integration into the aircraft. The rapid succession of the March 2026 Viasat-Galaxy 1 agreement and this May 2026 addition of L2 Aviation demonstrates significant momentum in building out the necessary infrastructure for the future of flight.

Frequently Asked Questions

What is Viasat Velaris?

Velaris is a global satellite connectivity network developed by Viasat specifically for uncrewed and emerging aircraft. It provides essential command-and-control data links required for safe and regulated operations.

Why is L2 Aviation’s involvement significant?

L2 Aviation brings nearly 30 years of avionics certification expertise to the Velaris ecosystem. Their involvement is crucial for ensuring that AAM communication systems meet the strict safety and airworthiness standards required by aviation regulators like the FAA and EASA.

What role does Galaxy 1 Communications play?

Galaxy 1 acts as a managed operational layer through a Distribution Partner-as-a-Service (DPaaS) model. They handle the complexities of provisioning, billing, compliance oversight, and integration for the Velaris network.

Sources

Photo Credit: Viasat

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UAV & Drones

Pierce Aerospace to Deploy Remote ID Network for NASA in Bay Area

Pierce Aerospace selected to install Remote ID sensors in San Francisco Bay Area supporting NASA’s aviation research and airspace safety initiatives.

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This article is based on an official press release from Pierce Aerospace.

Pierce Aerospace has been selected by Metis Technology Solutions to deploy a network of Remote ID sensors across the San Francisco Bay Area and Silicon Valley. The multi-year initiative will support NASA’s Aerospace Research Technology and Simulation (ARTS) contract, providing critical airspace awareness data for the agency’s ongoing aviation research.

In a company press release, Pierce Aerospace announced that its YR1 and YR2S Remote ID sensors will be installed in a layered network to monitor uncrewed aircraft systems (UAS). The deployment directly supports the Air Traffic Management and Safety (ATMS) project and the Aeronautics Projects Office at NASA’s Ames Research Center.

Remote ID technology, mandated by the Federal Aviation Administration (FAA), functions as a digital license plate for drones, broadcasting essential telemetry data. This capability is considered a foundational element for the safe integration of drones, air taxis, and other emerging aviation technologies into the National Airspace System.

Advancing Air Traffic Management and Safety

The newly announced sensor network will feed critical data into several key NASA initiatives aimed at modernizing airspace operations. According to the press release, the ATMS project serves as the digital backbone for future airspace, focusing on the safe, automated integration of diverse vehicles ranging from package delivery drones to commercial jets.

Key Projects Benefiting from Remote ID Data

The sensor deployment will also support the Advanced Air Mobility Pathfinder (AAMP) program. This initiative combines research on eVTOL air taxis, beyond-visual-line-of-sight (BVLOS) operations, and emergency response capabilities. The goal is to establish operational guidelines for low-altitude drone deliveries and public safety missions. Additionally, the network will facilitate Smart Mobility efforts, including small UAS flight operations at Moffett Field.

“It is an honor to support NASA’s cutting-edge research that’s at the forefront of evolving Air Traffic Management and emerging aviation technologies and aircraft through the Metis ARTS contract,” said Aaron Pierce, CEO and co-founder of Pierce Aerospace, in the official statement. “In addition to supporting NASA, this network of sensors can be made available to support airspace awareness for commercial and public sector stakeholders.”

Accelerating Innovation with Phase III Subcontracts

The partnership between Pierce Aerospace and Metis Technology Solutions was facilitated through a Phase III subcontract under the Small Business Innovation Research (SBIR) program. This contracting mechanism allows federal agencies and prime contractors to rapidly transition innovative technologies from research and development into operational use.

Building the Future of Uncrewed Aviation

Metis Technology Solutions, the prime contractor for the ARTS contract, emphasized the importance of the new infrastructure. The deployment is expected to enhance airspace awareness and data fidelity across the Silicon Valley and Hollister Airspace Ecosystem.

“Metis Technology Solutions is proud to issue a Phase III subcontract under the Small Business Innovation Research (SBIR) program, establishing a partnership with Pierce Aerospace to deliver a Remote ID sensor network that will accelerate NASA’s airspace safety and research mission,” stated Sig Lokensgard, ARTS Program Manager at Metis Technology Solutions.

Pierce Aerospace has been developing Remote ID technology since 2017 and began fielding its systems through U.S. Air Force AFWERX SBIR awards in 2018. The company noted that this marks its third award utilizing SBIR Phase III authorities, which enable greater agility in delivering capabilities to end users.

AirPro News analysis

At AirPro News, we view this deployment as a significant step toward the practical realization of Advanced Air Mobility (AAM). By establishing a persistent, layered Remote ID network in a high-traffic technology hub like the San Francisco Bay Area, NASA and its partners are moving beyond theoretical models into real-world airspace management. We anticipate that the data gathered from this multi-year initiative will be instrumental in shaping future FAA regulations regarding beyond-visual-line-of-sight (BVLOS) flights and autonomous drone operations.

Frequently Asked Questions

What is Remote ID?

Remote ID is a requirement established by the FAA that mandates drones to broadcast a “digital license plate.” This broadcast includes telemetry data, which is critical for the detection, tracking, and identification of uncrewed aircraft in the airspace.

Where will the new sensor network be deployed?

According to the press release, Pierce Aerospace will deploy its YR1 and YR2S Remote ID sensors throughout the Silicon Valley and the broader San Francisco Bay Area.

Who is managing the ARTS contract for NASA?

Metis Technology Solutions serves as the Prime Contractor for NASA’s Aerospace Research Technology and Simulation (ARTS) contract, overseeing the integration of the Remote ID sensor network.

Sources

Photo Credit: Pierce Aerospace

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UAV & Drones

Solar Impulse 2 Aircraft Crashes During Autonomous Test Flight

The Solar Impulse 2, a historic solar-powered aircraft converted into an autonomous drone by Skydweller Aero, crashed over the Gulf of Mexico on May 4, 2026.

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This article summarizes reporting by Aviation Safety Network and Aviation Safety Network Staff.

The historic Solar Impulse 2 aircraft, renowned for completing the first solar-powered circumnavigation of the globe, has been destroyed in a crash over the Gulf of Mexico. According to reporting by Aviation Safety Network, the experimental aircraft went down on May 4, 2026, following a mid-flight loss of power.

Operating under the registration N247PF, the aircraft was conducting an uncrewed test flight when the incident occurred. Because the plane had been heavily modified to operate autonomously, there were zero occupants on board, and no injuries were reported.

The loss marks a sudden end for an airframe that captured global attention a decade ago and was actively being utilized to pioneer perpetual autonomous flight technologies.

The Final Flight and Crash

Incident Details

The aircraft, operated by US-Spanish aerospace company Skydweller Aero, took off from Stennis International Airport in Mississippi. According to preliminary data from the National Transportation Safety Board (NTSB) and reporting by Aviation Safety Network, the uncrewed aerial system (UAS) experienced a sudden loss of power.

Unable to sustain altitude, the aircraft plunged into international waters near Bay St. Louis, Mississippi. The NTSB has launched a Class 4 investigation into the crash under Incident number DCA26LA196, according to the agency’s preliminary report. The airframe was completely destroyed upon impact with the water.

Legacy of the Solar Impulse 2

From Global Circumnavigation to Drone

Originally registered as HB-SIB, the Solar Impulse 2 made aviation history between 2015 and 2016 by completing an approximately 26,000-mile journey around the world, according to historical data from SFGATE. Developed by Swiss pioneers Bertrand Piccard and André Borschberg, the aircraft demonstrated the vast potential of Clean-Energy and solar technology.

In 2019, the aircraft was acquired by Skydweller Aero. The company heavily modified the solar plane, converting it into an autonomous drone designed for long-endurance, multiday flights. The ultimate goal was to develop a platform capable of perpetual flight for research and surveillance purposes.

Following the crash, the original creators expressed their dismay.

“The Solar Impulse team is saddened by the loss of an important technological flagship,”

Solar Impulse statement, as reported by SFGATE

AirPro News analysis

We note that the destruction of the Solar Impulse 2 represents a significant physical loss for aviation historians. Under the terms of its operational life, the aircraft was reportedly slated to return to Switzerland for permanent exhibition at the Swiss Museum of Transport. While the airframe is now lost to the Gulf of Mexico, the data gathered during its recent autonomous Test-Flights will likely continue to inform the development of heavy uncrewed aerial systems. The incident underscores the inherent risks of experimental flight testing, even when transitioning proven crewed platforms into autonomous drones.

Frequently Asked Questions

When did the Solar Impulse 2 crash?

According to Aviation Safety Network, the aircraft crashed on May 4, 2026, during a test flight.

Were there any casualties?

No. The aircraft had been converted into an autonomous drone, so there were zero fatalities or injuries.

Who owned the aircraft at the time of the crash?

The aircraft was owned and operated by Skydweller Aero, a company developing autonomous perpetual-flight technologies.

Sources

Photo Credit: Solar Impulse

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