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Boeing and United Airlines Validate Internet Protocol Suite in Flight Tests

Boeing and United Airlines tested the Internet Protocol Suite on a 737-8, enabling advanced data communications for aviation trajectory operations.

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

Boeing and United Airlines Validate Next-Gen “Internet Protocol Suite” in Flight Tests

On December 10, 2025, Boeing and United Airlines announced the successful completion of a series of Test-Flights designed to modernize the digital infrastructure of global aviation. Utilizing a United Airlines Boeing 737-8, designated as the “2025 ecoDemonstrator Explorer,” the companies tested the Internet Protocol Suite (IPS), a high-bandwidth communication standard intended to replace legacy systems currently used by air traffic control (ATC) and airline operations centers.

According to the official press release, the tests took place in late October 2025, with flights conducted in Houston, Texas, and Edinburgh, Scotland. The primary objective was to demonstrate that commercial internet standards can reliably handle the complex data exchange required for modern flight operations, specifically enabling a concept known as Trajectory Based Operations (TBO).

Modernizing Aviation Communications

The core of this testing initiative involves shifting aviation communications from the legacy Aircraft Communications Addressing and Reporting System (ACARS) to the modern Internet Protocol Suite (IPS). ACARS, a technology dating back to the 1970s, relies on low-bandwidth, text-based messaging that functions similarly to a pager or SMS service. As air traffic volume increases, these legacy frequencies have become increasingly congested.

In contrast, the IPS system tested by Boeing and United utilizes high-bandwidth IP standards similar to terrestrial broadband. This shift allows for the transmission of “big data” packages, including complex weather maps, real-time engine diagnostics, and 4-dimensional trajectory data, rather than simple text strings.

Enabling Trajectory Based Operations (TBO)

The implementation of IPS is a critical prerequisite for Trajectory Based Operations (TBO), a management concept championed by the FAA and Eurocontrol. Under current protocols, ATC often manages aircraft separation by keeping planes miles apart in a single line, frequently necessitating holding patterns or inefficient stepped descents.

TBO aims to change this by allowing aircraft to negotiate a precise 4-dimensional path, incorporating latitude, longitude, altitude, and time, before takeoff. By utilizing the high-speed data capabilities of IPS, aircraft can fly continuous, optimized paths from departure to arrival, significantly reducing fuel burn, CO2 emissions, and flight delays.

“Boeing is proud to lead the advancement of digital communications that significantly enhance safety and operational efficiency… [This is] a pivotal step towards improving the reliability and speed of communication between the flight deck and air traffic control.”

Todd Citron, Boeing Chief Technology Officer

Industry-Wide Collaboration

While Boeing led the program and United Airlines provided the aircraft and crew, the tests represented a broad industry collaboration involving multiple technology providers. The project required integrating satellite links, avionics software, and ground networks to create a seamless “multi-link” environment.

According to project details released by the partners, the specific contributions included:

  • Viasat: Provided the satellite communications (Satcom) link via its SB-S service.
  • Collins Aerospace: Supplied avionics software and connectivity solutions to manage data flow.
  • Honeywell: Provided prototype avionics software for processing new data standards.
  • Thales: Contributed satellite communications software.
  • SITA: Managed the testing of solutions in a real-world environment across different networks.

The European Space Agency (ESA) also played a foundational role through its “Iris Global program,” which served as a precursor for the satellite technology utilized in these tests. Government partners, including the FAA and NASA, were involved in defining the standards for TBO and future airspace management.

“The ecoDemonstrator project is an outstanding collaboration to help support the ongoing upgrades within our air traffic control system… [We are] leveraging the expertise of all our teammates to help shape the future of flight.”

Andy McKee, United Airlines 737 Chief Test Pilot

AirPro News Analysis

The successful testing of IPS on a commercial airframe marks a significant inflection point for aviation infrastructure. For decades, the industry has been bottlenecked by the bandwidth limitations of ACARS, which restricts the amount of real-time data that can be shared between the ground and the cockpit. While modern aircraft generate terabytes of data, very little of it can be transmitted in flight under current standards.

We observe that the shift to IPS is not merely a technical upgrade but a necessary step for the industry to meet its “Net Zero” 2050 carbon goals. While propulsion breakthroughs like hydrogen and electric flight remain distant for large commercial jets, digital efficiencies like TBO offer immediate gains. Industry estimates suggest that flying optimized trajectories can reduce fuel burn by 1-2% per flight, a massive aggregate saving when applied to global traffic. This test validates that the “plumbing” required for these efficiencies is ready for real-world deployment.

The ecoDemonstrator Legacy

This collaboration is part of Boeing’s long-running ecoDemonstrator program, which uses flying testbeds to evaluate new technologies outside of a laboratory setting. Since 2012, the program has tested over 250 technologies. Boeing states that approximately one-third of these technologies eventually transition into their production aircraft.

United Airlines has been a frequent partner in this initiative, previously collaborating on tests involving Sustainable Aviation Fuel (SAF) and other efficiency measures. This latest test reinforces the carrier’s strategy of adopting early-stage technologies to enhance operational reliability and Sustainability.


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Sources: Boeing Media Room

Photo Credit: Boeing

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Surf Air Mobility and BETA Technologies Launch Hawaii Electric Demo

Surf Air Mobility and BETA Technologies begin a 6-8 week ALIA CTOL demo in Hawaii targeting FAA Part 23 certification in early 2027.

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Surf Air Mobility Inc. and BETA Technologies have initiated a six-to-eight-week electric aircraft demonstration program in Hawaiʻi, partnering with Airlines to evaluate the operational and infrastructure demands of interisland electric flight.

Announced in a joint press release on June 26, 2026, the flight campaign utilizes the BETA ALIA Conventional Takeoff and Landing (CTOL) aircraft. The initiative aims to gather real-world data on battery performance, energy consumption, and charging logistics to pave the way for commercial regional air service across the state.

Demonstration parameters and industry partnerships

The program officially commenced with a launch event on June 25, 2026, hosted at the Charles I. Elliott Maintenance and Cargo Facility at Daniel K. Inouye International Airport (HNL) in Honolulu. Over the next two months, the ALIA CTOL aircraft will conduct test flights to simulate the high-cadence operations required for regional cargo and passenger transport.

Hawaiian Airlines (HA), a subsidiary of Alaska Air Group, is supporting the evaluation activities. The carrier is using the trial to assess how electrified aviation can integrate into existing short-haul networks.

Hawaiian Airlines has a deep and sustained responsibility not only to provide critical air service to, from and within the islands and to carry the spirit of Hawai’i with us on the journey, we are also driven, with Alaska Airlines, to cultivate innovation and support the technologies that will enable a strong and resilient future for aviation. This program provides an opportunity to better understand how BETA’s electrified aircraft can support safe and reliable cargo and passenger air service for short-haul service while improving the environmental impact of that flying.

The statement was provided by Hawaiian Airlines Chief Executive Officer Diana Birkett Rakow. BETA Technologies Chief Executive Officer Kyle Clark added that the demonstrations will showcase the utility and economics of the ALIA aircraft firsthand, noting that connecting the Hawaiian islands with low-cost cargo and passenger service represents an ideal application for advanced air mobility.

Path to commercial operations and Certification

The demonstration flights build on a definitive purchase agreement finalized in March 2026. Surf Air Mobility placed a firm order for 25 BETA ALIA CTOL aircraft and secured options for an additional 75 airframes. The company intends to deploy these aircraft through its Mokulele Airlines (MW) subsidiary for both cargo and passenger missions once the aircraft receives regulatory approval.

BETA Technologies is currently targeting early 2027 for Federal Aviation Administration (FAA) Part 23 certification of the ALIA aircraft.

To manage the planned electric fleet, Surf Air Mobility will utilize SurfOS. This proprietary operating Software was developed in a 2024 partnership with Palantir Technologies to handle scheduling, pricing, and fleet management for both conventional and electric aircraft operators. The company also plans to establish a factory-authorized Maintenance, Repair, and Overhaul (MRO) center in Hawaiʻi to support long-term operations.

The aviation industry has talked about electric flight for years. The question is no longer whether electric aircraft can fly, but rather how they can now be successfully integrated into commercial service. The data generated through this program will help define the operational, economic, and infrastructure requirements needed to advance the next generation of regional air transportation.

This perspective was shared by Surf Air Mobility Chief Executive Officer Deanna White in the June 26 press release.

State support and infrastructure development

The current flight campaign aligns with broader state-level efforts to decarbonize aviation in Hawaiʻi. In January 2026, Surf Air Mobility and BETA Technologies partnered with the Hawaii Department of Transportation (HDOT) to submit an application for the federal Electric Vertical Takeoff and Landing Integration Pilot Program (eIPP).

The data collected during the current trial will directly inform these infrastructure planning efforts. By measuring exact energy consumption and turnaround times on specific interisland routes, the operators aim to identify precise requirements for charging stations and grid capacity at local Airports.

AirPro News analysis

HawaiÊ»i serves as a logical proving ground for early electric aviation. The state’s geography dictates short stage lengths between islands, which align well with the range limitations of first-generation battery-electric aircraft. High local aviation fuel costs also improve the comparative economic case for electric propulsion.

We view this demonstration program as a critical transition phase for the advanced air mobility sector. Moving from controlled test flights to simulated commercial operations will expose the ALIA CTOL to real-world turnaround pressures, tropical weather conditions, and continuous battery cycling. The resulting data will be essential not only for BETA Technologies’ final push toward FAA Part 23 certification but also for determining the actual capital expenditure required to build out charging infrastructure across the Hawaiian islands.

Sources: Surf Air Mobility / BETA Technologies Press Release

Photo Credit: Surf Air Mobility

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Vertical Aerospace Flies Final eVTOL Prototype Ahead of CDR

Vertical Aerospace completed the first piloted flight of its final full-scale eVTOL prototype on June 5, 2026, ahead of its Critical Design Review.

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Vertical Aerospace (NYSE: EVTL) completed the maiden piloted flight of its final full-scale electric vertical takeoff and landing (eVTOL) prototype on June 5, 2026, doubling the manufacturer’s flight test capacity ahead of its upcoming Critical Design Review.

The flight took place at 8:49 BST at the company’s United Kingdom Flight Test Centre. According to a press release issued on June 9, 2026, the successful sortie followed the issuance of a new Permit to Fly from the UK Civil Aviation Authority (CAA) and marks the last major hardware iteration before the company establishes its certifiable design baseline.

Advancing toward Critical Design Review

The introduction of this final prototype is a prerequisite for the manufacturer’s Critical Design Review (CDR). Completing the CDR will freeze the aircraft’s design and clear the way for Vertical Aerospace to begin assembling its first pre-production airframes for the Valo four-passenger aircraft program.

Test Pilot Paul Stone commanded the June 5 flight. The addition of a second active aircraft to the test fleet allows the company to accelerate its data collection and validation processes.

“Getting our latest prototype into flight testing is an important milestone because it allows us to learn faster in real world conditions and keep building momentum towards certification,” Vertical Aerospace CEO Stuart Simpson said in the company announcement. “Expanding the flight test fleet will help us validate the aircraft more quickly, reduce risk, and move more efficiently towards bringing Valo into service.”

Dual-track flight test campaign

Vertical Aerospace is now operating two full-scale prototypes simultaneously. The company’s previous prototype is currently engaged in transition flight testing. That aircraft completed a milestone one-way transition flight on April 2, 2026, and continues to expand its flight envelope through thrustborne, wingborne, and transition phases.

The newly flown prototype will initially focus on all-electric flight testing. Once those phases are complete, the manufacturer intends to retrofit the aircraft for hybrid-electric flight testing. This future configuration is intended to support defense, logistics, and broader commercial applications beyond short-range urban air mobility.

The Valo program currently holds approximately 1,500 pre-orders from operators and lessors including American Airlines, Avolon, Bristow, GOL, and Japan Airlines.

AirPro News analysis

Reaching the final prototype stage is a critical threshold for any eVTOL developer. For Vertical Aerospace, getting a second aircraft into the air mitigates the schedule risk inherent in relying on a single test article. If one aircraft requires maintenance or modifications, the flight test campaign can continue. We view the planned hybrid-electric retrofit as a strategic pivot to expand the Valo’s addressable market, acknowledging that pure battery-electric range limitations may restrict early commercial use cases. Securing the UK CAA Permit to Fly for this specific airframe also demonstrates ongoing regulatory alignment as the company approaches its CDR.

Sources: Vertical Aerospace

Photo Credit: Vertical Aerospace

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SkyDrive SD-05 eVTOL Reaches 100 km/h in Flight Testing

SkyDrive’s SD-05 12-rotor eVTOL hit 100 km/h in Toyota, Japan, validating flight controls ahead of a 2028 commercial launch.

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Japanese eVTOL manufacturer SkyDrive Inc. announced on June 24, 2026, that its SKYDRIVE Model SD-05 aircraft successfully reached a speed of 100 km/h during flight testing in Toyota, Japan, validating the aerodynamic stability and flight control systems of the 12-rotor multicopter.

In a press release issued by the company, SkyDrive stated the high-speed flight test campaign confirms the aircraft functions as predicted during the design and analysis phase. The 100 km/h milestone is considered the viable operating speed for the short-hop inter-urban commercial flights the company plans to launch in 2028.

Flight test parameters and technical validation

The achievement of the 100 km/h speed target verifies the performance of the aircraft’s propulsion, flight control, and avionic systems under high-speed forward flight conditions. The testing campaign in Toyota was designed to evaluate the aircraft’s high-speed stability, controllability, and maneuverability.

The SKYDRIVE Model SD-05 utilizes a compact multicopter architecture featuring 12 independent rotors. Reaching this speed demonstrates the maneuverability and controllability required to advance the aircraft toward type certification with Japanese regulators.

Certification progress and manufacturing

The flight test milestone follows recent regulatory progress for the manufacturer. On April 15, 2026, SkyDrive received Approved Design Organization (ADO) certification from the Japan Civil Aviation Bureau (JCAB).

The ADO certification allows the manufacturer to self-verify specific portions of airworthiness checks. This regulatory approval made SkyDrive the first dedicated eVTOL developer in Japan to secure ADO status. Production of the SD-05 aircraft is already underway, having commenced in March 2024 at a manufacturing facility owned by Suzuki Motor Corporation.

Commercial expansion and fleet orders

As the aircraft advances through flight testing, SkyDrive has accumulated commercial commitments both domestically and internationally. On May 12, 2026, the manufacturer announced a Letter of Intent with Tohoku Air Service for the purchase of one SD-05. This agreement marked the first aircraft sale commitment from a Japan-based helicopter operator.

Internationally, SkyDrive reached a general understanding on January 30, 2026, with Dubai-based AeroGulf Services Company LLC for the potential purchase of up to 20 SD-05 aircraft. The agreement represents the manufacturer’s first detailed commercial exploration outside of the Japanese market.

To support domestic operations, SkyDrive launched Japan’s first vertiport operators’ consortium on May 12, 2026. The initiative aims to promote commercial eVTOL services across the Kansai area, with a target of establishing 100 operational air taxis around Osaka by 2035.

AirPro News analysis

We view the 100 km/h flight test milestone as a critical technical gate for the SD-05 program. Multicopter designs that rely on 12 independent rotors without a transitional wing face distinct aerodynamic challenges at higher forward speeds. Validating stability at 100 km/h indicates the flight control software and rotor pitch mechanisms are successfully managing the differential thrust required for forward flight. Combined with the recent JCAB ADO certification and the manufacturing partnership with Suzuki Motor Corporation, SkyDrive is assembling the necessary regulatory and industrial framework to meet its 2028 commercialization target.

Sources: SkyDrive Inc.

Photo Credit: SkyDrive

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