Defense & Military
Marshall Aerospace Details Critical C-130 Hercules Paint Stripping Process
Marshall Aerospace performs chemical paint stripping on C-130 Hercules aircraft to expose bare metal for essential maintenance inspections.
This article is based on an official press release from Marshall Aerospace.
For military aviation enthusiasts and industry observers, the C-130 Hercules is most recognizable in its operational livery, typically grey, camouflage, or specific squadron markings. However, before these workhorses undergo major maintenance, they must be stripped down to their raw, metallic core. According to Marshall Aerospace, this transformation is not merely aesthetic but a critical safety requirement for ensuring the airworthiness of global fleets.
In a recent release titled “What lies beneath,” Marshall Aerospace detailed the rigorous process of chemically stripping C-130 Military-Aircraft to bare metal. This procedure, often hidden behind closed hangar doors due to safety protocols, is the first step in a “deep tissue” examination of the airframe. By removing layers of paint and primer, maintenance crews can expose the aircraft’s “silver skin,” revealing microscopic defects that would otherwise remain invisible to the naked eye.
As a “Gold Standard” partner for Lockheed Martin, Marshall Aerospace performs this essential work at its facility in Cambridge, UK. The company notes that this capability is vital for Planned Maintenance Intervals (PMI), a heavy maintenance check that occurs roughly every five to six years. Without this complete strip, engineers cannot guarantee the structural integrity required for the demanding operational profiles of clients like the US Marine Corps.
The process of stripping a C-130 is an intense industrial undertaking that typically occurs within the first 10 days of the aircraft’s arrival for maintenance. Marshall Aerospace describes the procedure as a complete “transformation” that takes place in a dedicated “paint barn” large enough to house a Boeing 747.
Unlike minor inspections where paint remains intact, major maintenance events require the removal of all coatings. Marshall Aerospace utilizes a specialized chemical stripping process to achieve this. Before the chemicals are applied, technicians meticulously mask sensitive areas of the aircraft. Windows, composite parts, and radomes are covered with aluminum tape and protective materials to prevent chemical intrusion, which could damage these delicate components.
Once prepared, the aircraft is treated with a chemical agent designed to loosen the bond between the paint, primer, and the metal skin. The coating is then washed away, leaving the aluminum alloy structure exposed. Because the process involves harsh chemicals and heavy metals from the old paint, Marshall emphasizes the use of advanced environmental abatement systems. These systems capture hazardous waste and filter the air, ensuring that pollutants do not escape into the atmosphere or local water supply.
The environment inside the paint barn is strictly controlled. Technicians working on the strip must wear full Personal Protective Equipment (PPE), including respirators and protective suits. This level of protection is necessary to handle the stripping agents safely while preparing the aircraft for the next stage of its maintenance journey. While a freshly painted aircraft looks impressive, Marshall Aerospace asserts that the true value of maintenance lies in what is uncovered when the paint is removed. The “silver” state of the aircraft allows for a level of inspection that is impossible to achieve on a painted airframe.
Paint can effectively hide stress cracks, corrosion, loose rivets, and fatigue issues. By stripping the aircraft to bare metal, engineers can perform rigorous Non-Destructive Testing (NDT) and visual inspections on every inch of the skin. This “detective work” is crucial for identifying structural weaknesses that could compromise the aircraft’s safety during flight.
“We understand that there is more to aircraft paint than the appearance… looking at what is under the surface is key to our maintenance inspections.”
, Marshall Aerospace Technical Materials
Beyond inspection, the stripping process plays a role in aircraft performance. Over time, multiple layers of paint can add significant weight to an airframe. Stripping and repainting help maintain the aircraft’s correct weight and center of gravity, ensuring it performs within its design specifications.
The emphasis on deep-level maintenance capabilities like paint stripping highlights a broader trend in the aerospace defense sector: the extension of airframe life. With the C-130 platform remaining a backbone of global military logistics, the ability to detect and repair fatigue in aging airframes is becoming as valuable as the production of new units. Marshall Aerospace’s expansion into the United States, with a new facility in Greensboro, North Carolina, suggests a growing demand for these heavy MRO capabilities on both sides of the Atlantic.
Marshall Aerospace has established itself as a global authority on the C-130 platform. The company has been working on the Hercules since 1966 and became the first authorized C-130 Hercules Service Centre (HSC) in the world in 1974. In February 2025, the company celebrated 50 years holding this designation.
The company services major international fleets, including the US Marine Corps and the Royal Air Force. With the upcoming facility in Greensboro, Marshall is set to expand its “paint barn” capabilities, bringing its specialized stripping and maintenance processes closer to its North-American customer base.
The Silver Skin: Inside the Critical C-130 Paint Stripping Process
The Transformation: From Paint to Bare Metal
Chemical Stripping and Containment
Safety Protocols
Why the Strip is Non-Negotiable
Detecting Hidden Defects
Weight and Balance
AirPro News Analysis
Marshall’s Legacy and Future
Frequently Asked Questions
Sources
Photo Credit: Marshall Aerospace
Defense & Military
Embraer and Saab Unveil First Gripen E Fighter Produced in Brazil
Embraer and Saab unveiled the first Gripen E fighter jet assembled in Brazil, enhancing local defense manufacturing and fulfilling a 2014 contract.
This article is based on an official press release from Embraer.
On March 25, 2026, Embraer, Saab, and the Brazilian Air Force (FAB) marked a historic milestone in Latin American aerospace by unveiling the first Gripen E fighter jet manufactured on Brazilian soil. The rollout ceremony took place at Embraer’s industrial complex in Gavião Peixoto, São Paulo State, officially introducing the first supersonic fighter aircraft ever produced in the country.
According to the official press release, the event drew high-profile attendees, including Brazilian President Luiz Inácio Lula da Silva, Swedish Ambassador Karin Wallensteen, and top executives from both Embraer and Saab. The presentation of the aircraft highlights a successful technology transfer program and elevates Brazil into a select group of nations capable of manufacturing advanced combat aircraft.
The newly unveiled Gripen E is the result of a deeply integrated Brazilian and international supply chain. Embraer’s Gavião Peixoto facility handles the final assembly, utilizing aerostructures manufactured at Saab’s plant in São Bernardo do Campo. According to Embraer, 14 additional aircraft will be built using this exact production model under the current FAB contract.
Before being handed over to the customer, the newly assembled fighter will undergo rigorous functional and production flight testing. Once cleared, it will join the First Defense Group (1st GDA) stationed at the Anápolis Air Force Base.
Company leadership emphasized the broader implications of the rollout. In the press release, Bosco da Costa Junior, President and CEO of Embraer Defense & Security, highlighted the collaborative effort:
“…it symbolizes the strength of a partnership built on trust, long‑term vision, and true cooperation.”
The foundation for this manufacturing achievement was laid in 2014 when the Brazilian government signed a comprehensive contract with Saab. The agreement covers the development and production of 36 Gripen fighters, specifically 28 single-seat Gripen E models and eight two-seat Gripen F variants.
Deliveries from Sweden began in 2020, and the press release notes that at least 10 aircraft have already been handed over to the Brazilian Air Force. The Gripen fleet is already active; since February, the fighters have been executing Quick Reaction Alert (QRA) missions from the Anápolis Air Force Base to safeguard the airspace over Brazil’s federal district. Micael Johansson, President and CEO of Saab, noted the strategic importance of the local production capability, stating in the release:
“…developing, within Brazil, the capability to produce a high-tech supersonic fighter aircraft – fully capable of executing air superiority missions…”
We view the successful rollout of a domestically assembled Gripen E as a transformative moment for Embraer and the Brazilian defense sector. By proving it can assemble and integrate a sophisticated, network-centric supersonic fighter, Embraer significantly enhances its high-end military manufacturing portfolio. This capability not only fulfills Brazil’s immediate national security and airspace defense needs but also positions the Gavião Peixoto facility as a potential regional export and maintenance hub for South America. As neighboring countries evaluate their aging fighter fleets, we believe Brazil’s proven production line could offer Saab a strategic foothold for future Latin American sales.
Where was the first Brazilian-made Gripen E produced? How many Gripen fighters did Brazil order? How many more Gripens will be built in Brazil?
Production and Strategic Partnership
Details of the Gavião Peixoto Facility
Contract History and Operational Status
The 2014 Agreement
AirPro News analysis
Frequently Asked Questions
The aircraft was assembled at Embraer’s industrial complex in Gavião Peixoto, São Paulo State, using components including aerostructures from Saab’s facility in São Bernardo do Campo.
Under a 2014 contract, the Brazilian government ordered 36 Gripen fighters, comprising 28 single-seat Gripen E jets and 8 two-seat Gripen F jets.
According to the Embraer press release, 14 additional aircraft will be produced at the Gavião Peixoto facility under the current contract.
Sources
Photo Credit: Embraer
Defense & Military
Japan Expands F-35B Fleet with Delivery to Nyutabaru Air Base
Japan received three F-35B fighters at Nyutabaru Air Base, advancing its goal to deploy eight F-35Bs by fiscal year 2025 end.
In late March 2026, the Japan Air Self-Defense Force (JASDF) received three additional F-35B Lightning II stealth fighters at Nyutabaru Air Base in Miyazaki Prefecture. According to social media account @thef35 on X, the delivery highlights that procurement
“momentum continues” for the Japanese defense forces.
This latest arrival is a critical milestone. Based on defense research data, the delivery keeps Japan’s Ministry of Defense on track to meet its goal of deploying an initial batch of eight F-35Bs by the end of fiscal year 2025, which concludes on March 31, 2026. Japan received its first three F-35Bs on August 7, 2025, ferried by U.S. pilots, and officially activated the fleet for frontline service during a ceremony on February 7, 2026.
The integration of the Short Take-Off and Vertical Landing (STOVL) aircraft represents a historic shift in Japan’s defense posture. Defense reports indicate Japan plans to acquire 147 F-35s in total, 105 conventional F-35As and 42 F-35Bs, making it the largest operator of the fifth-generation fighter outside the United States.
While the F-35Bs are operated by the JASDF, defense analysts note their primary strategic value lies in their integration with the Japan Maritime Self-Defense Force (JMSDF).
To accommodate the STOVL aircraft, Japan has been modifying its two largest warships, the Izumo-class helicopter destroyers JS Izumo and JS Kaga. According to defense research, these modifications include reshaping the bows into a rectangular configuration and applying heat-resistant deck coatings capable of withstanding the F-35B’s powerful lift fan.
These upgrades were put to the test recently. In October 2024, a U.S. Navy and Marine Corps F-35B successfully conducted the first landing and takeoff trials on the modified JS Kaga off the coast of San Diego, California. This milestone effectively proved the vessel’s capability to operate as a light aircraft carrier, returning fixed-wing carrier aviation to the Japanese fleet for the first time since World War II.
Japan’s acquisition of the F-35B is widely viewed by defense researchers as a direct response to a tightening regional security environment, particularly the rapid military modernization and maritime maneuvers of China in the East and South China Seas. Nyutabaru Air Base is strategically located on Kyushu, Japan’s southernmost main island. Defense reports highlight that this positions the F-35B fleet in close proximity to the Nansei Islands chain, which stretches toward Taiwan and includes the Japanese-administered Senkaku Islands. The STOVL capability allows Japan to project air power from the sea and operate from shorter, austere runways on remote islands.
Under its post-WWII pacifist constitution, Japan has historically maintained a strictly defensive military posture. The deployment of carrier-capable stealth fighters represents a shift toward what defense analysts term “active deterrence.” To navigate political sensitivities regarding offensive capabilities, the Japanese government officially classifies the Izumo and Kaga as “multi-functional destroyers” rather than aircraft carriers.
Despite the strategic momentum, the domestic rollout of the F-35B fleet has faced logistical and political hurdles.
According to defense research data, Japan is constructing a dedicated runway and training facility on the uninhabited island of Mageshima, located roughly 160 kilometers south of Nyutabaru. This facility is intended for F-35B Field Carrier Landing Practice (FCLP) and vertical landing drills.
However, the Mageshima project has been delayed until approximately 2029 or 2030. Consequently, routine vertical landing training must be conducted at Nyutabaru Airports in the interim. This temporary arrangement has triggered protests and concerns from local residents in Miyazaki Prefecture regarding severe aircraft noise pollution.
We view the successful delivery of these F-35Bs as more than just a national defense upgrade for Japan; it is a foundational step for allied interoperability in the Indo-Pacific. By operating the F-35B from modified destroyers, Japan ensures seamless integration with U.S. Navy and Marine Corps forces, as well as other allied operators like the United Kingdom and Italy. This opens the door for future cross-decking operations, where allied jets can land on Japanese ships and vice versa, creating a highly flexible, distributed maritime strike capability that complicates adversary planning in the region.
According to defense procurement data, Japan plans to acquire a total of 147 F-35 military-aircraft, consisting of 105 F-35A conventional takeoff variants and 42 F-35B STOVL variants.
The F-35B features Short Take-Off and Vertical Landing (STOVL) capabilities, allowing it to operate from amphibious assault ships, light aircraft carriers, and short or austere runways. To align with its post-WWII pacifist constitution, which limits offensive military capabilities, Japan officially classifies the modified Izumo-class vessels as “multi-functional destroyers” rather than aircraft carriers.
Sources: @thef35, Defense Research Report
Japan Expands F-35B Fleet with Latest Delivery to Nyutabaru Air Base
Strategic Shift: The “Lightning Carriers”
Vessel Modifications and Sea Trials
Geopolitical Drivers and Regional Defense
Defending the Nansei Islands
Domestic Challenges and Infrastructure
Local Impact at Nyutabaru
AirPro News analysis
Frequently Asked Questions (FAQ)
How many F-35s is Japan buying?
What makes the F-35B different?
Why are Japan’s carrier-capable ships called destroyers?
Photo Credit: Lockheed Martin
Defense & Military
GKN Aerospace Delivers First Upgraded RM12 Engine to Swedish Armed Forces
GKN Aerospace delivers the first upgraded RM12 engine under a £32 million programme enhancing Sweden’s Gripen C/D fighter fleet performance and endurance.
This article is based on an official press release from GKN Aerospace.
GKN Aerospace has officially delivered the first upgraded RM12 engine to the Swedish Armed Forces, marking a critical milestone in the RM12 Enhanced Performance (RM12EP) programme. The delivery is part of a broader initiative to modernize the propulsion systems of Sweden’s JAS 39 Gripen C/D fighter fleet.
According to a company press release, the RM12EP programme is valued at approximately £32 million (SEK 400 million). The initiative focuses on increasing engine thrust, extending operational endurance, and improving overall efficiency to ensure the legacy fighter aircraft remain highly capable in modern operational environments.
The successful handover of the first enhanced engine underscores GKN Aerospace’s nearly century-long partnership with the Swedish Air Force. As the type certificate holder for the RM12 engine, the company continues to play a central role in maintaining Sweden’s aerial defense readiness.
The RM12EP upgrade introduces significant technical improvements to the existing powerplants. In its official statement, GKN Aerospace noted that the enhancements include the installation of improved turbine hardware alongside updated engine control software. These modifications are specifically designed to boost engine thrust and extend the operating time of the engines, while simultaneously reducing life cycle costs for the Swedish Armed Forces.
The RM12EP programme was originally launched in 2019. It represents a long-term strategic effort led by GKN Aerospace to ensure that the Gripen C/D remains a cost-efficient and highly capable platform, even as newer generations of fighter aircraft enter service.
All upgrade work for the RM12 engines is being conducted at GKN Aerospace’s specialized facility in Trollhättan, Sweden. The company maintains comprehensive responsibility for the development, manufacturing, system support, and maintenance of both the RM12 engine, which powers the Gripen C/D, and the newer RM16 engine, which is utilized in the advanced Gripen E/F models.
The delivery of the first upgraded unit was achieved through extensive cross-functional collaboration. GKN Aerospace highlighted that the milestone involved coordination across engineering, production, quality assurance, procurement, and logistics departments. Furthermore, the project relies on key partnerships with industry leaders GE and Saab. Additional upgraded engines are scheduled to be delivered continuously to the Swedish Armed Forces in accordance with the programme’s planned timeline. “This first upgraded engine delivery represents an important step forward in enhancing the performance and endurance of the Gripen system. As type certificate holder for the Gripen C/D engine and with a partnership with the Swedish Air Force that spans nearly a century, we are proud to continue supporting Sweden’s operational capability and future readiness.”
We note that the delivery of the first upgraded RM12 engine highlights a broader trend in global defense procurement: the necessity of extending the operational lifespan of proven legacy platforms. While the Swedish Air Force is actively transitioning to the next-generation Gripen E/F, maintaining a robust and capable fleet of Gripen C/D aircraft remains essential for national security and regional stability.
By investing £32 million into the RM12EP programme, Sweden is ensuring a cost-effective bridge between aircraft generations. The enhancements to thrust and endurance not only improve the tactical capabilities of the Gripen C/D but also optimize maintenance schedules and reduce long-term operational costs. This dual-track approach, upgrading existing assets while procuring new ones, allows the Swedish Armed Forces to maintain a high state of readiness without compromising on technological advancement.
Furthermore, keeping the upgrade work localized at the Trollhättan facility secures domestic aerospace expertise and supply chain resilience. As geopolitical tensions in Europe remain a focal point for defense ministries, the ability to independently maintain and upgrade critical defense infrastructure is a significant strategic advantage for Sweden.
The RM12 Enhanced Performance (RM12EP) programme is an upgrade initiative led by GKN Aerospace for the Swedish Armed Forces. Launched in 2019, it aims to improve the thrust, endurance, and efficiency of the RM12 engines powering the JAS 39 Gripen C/D fighter aircraft.
According to GKN Aerospace, the programme is valued at approximately £32 million, which equates to SEK 400 million.
All development, manufacturing, and maintenance work for the RM12 engine upgrades is carried out at GKN Aerospace’s facility in Trollhättan, Sweden.
The RM12EP programme involves strong collaboration between GKN Aerospace and key industry partners, including GE and Saab.
The RM12EP Upgrade Programme
Technical Enhancements
Production and Partnerships
Strategic Implications for the Swedish Air Force
AirPro News analysis
Frequently Asked Questions
What is the RM12EP programme?
How much is the RM12EP programme worth?
Where is the upgrade work being performed?
Who are the key partners in this programme?
Sources
Photo Credit: GKN Aerospace
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