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Royal Thai Air Force to Upgrade Engines with Rolls-Royce T56 Series 3.5

Royal Thai Air Force to Upgrade Engines with Rolls-Royce T56 Series 3.5
Partnership and Program Overview
Rolls-Royce has announced a strategic collaboration with Thai Aviation Industries (TAI) to implement the T56 Series 3.5 engine upgrade for the Royal Thai Air Force’s (RTAF) fleet of C-130H transport aircraft. This initiative positions the RTAF as the first operator in the Asia-Pacific region to adopt this advanced engine enhancement, which aims to reduce operating temperatures, extend component lifespan, and improve overall aircraft reliability.
The upgrade program involves Boeing Distribution Inc (BDI), Rolls-Royce’s global distributor for the 3.5 upgrade kits, supplying essential components to Segers Aero Corporation for integration into the T56 engines. Each C-130H aircraft, powered by four T56 engines, will benefit from these improvements, which have already demonstrated success with the United States Air Force and NOAA’s P-3 fleets.
Scope and Expected Benefits
The contract encompasses upgrades for six aircraft, including spare engines, and is projected to reduce operational costs, decrease maintenance demands, and achieve fuel savings exceeding 10 percent. These enhancements are expected to sustain the RTAF’s C-130H fleet in active service until at least 2040, ensuring long-term operational capability.
Alex Zino, Director of Business Development and Future Programmes at Rolls-Royce, emphasized the significance of the partnership, stating, “We are proud to support our Royal Thai Air Force partners, enabling them to maintain critical transport air capability for decades to come. This contract, secured through our longstanding partnership with TAI and Segers, demonstrates our commitment to delivering advanced technologies and reliable equipment to armed forces worldwide.”
Amber Carnes, Vice President of T56 Programs at Rolls-Royce, highlighted the engine’s enduring legacy: “The T56 is a robust and reliable engine, serving military and civil aircraft globally for over 70 years. This contract underscores our ongoing commitment to supporting transport aircraft fleets worldwide.”
Regional Impact and Future Challenges
Air Chief Marshal Piboon Vorravanpreecha, Managing Director of Thai Aviation Industries, underscored the project’s importance, noting, “TAI is proud to serve as the prime contractor for the T56 Series 3.5 upgrade, supporting the modernization of the C-130H fleet. This initiative marks a major milestone for the Royal Thai Air Force and showcases TAI’s growing role in regional aerospace support.”
Following a competitive tender process, the Royal Thai Air Force selected Segers Aero Corporation and Turbo Power LLC, both based in the United States, to execute the upgrade.
While Rolls-Royce’s recent surge in profits and share prices—driven by strong demand for its jet engines—provides a favorable backdrop for the program, potential challenges remain. These include logistical and technical complexities such as ensuring compatibility with existing aircraft systems and securing ongoing support services. Additionally, competitors in the engine market may respond by advancing their own technologies and offering cost-effective alternatives.
Nonetheless, the RTAF’s decision to adopt the T56 Series 3.5 upgrade reflects a clear commitment to modernizing its fleet and maintaining operational readiness well into the future.

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