IN Brief:
- Saab and GKN Aerospace have signed a long-term agreement covering engine and propulsion support for Gripen E/F.
- GKN becomes Saab’s preferred provider of engine services, building on its existing responsibilities for the RM12 and RM16 programmes.
- The companies will explore wider Swedish technical capabilities and coordinated propulsion support for international Gripen customers.
Saab and GKN Aerospace have signed an agreement expanding their cooperation on propulsion systems for the Gripen E/F fighter aircraft, strengthening the Swedish industrial capabilities supporting the programme. Under the arrangement, GKN becomes Saab’s preferred provider of engine services related to Gripen E/F and will take a broader role in technical support, capability development and international customer activities. The agreement follows a Swedish government decision to strengthen national expertise and support capacity associated with the aircraft’s propulsion system.
The two companies already work together on engines for the earlier Gripen C/D, and GKN has established maintenance and technical support capabilities for the RM16 powerplant installed in Gripen E. Their new agreement provides a framework for expanding those responsibilities as the aircraft programme develops, rather than introducing a replacement engine or transferring all propulsion activities to a new supplier. Saab and GKN will also examine how their respective engineering capabilities can support customers operating Gripen aircraft outside Sweden.
The difference between the two Gripen generations is reflected in their engines: Gripen E uses Sweden’s RM16 designation for a version of General Electric’s F414 turbofan. GKN’s involvement in the propulsion system has developed alongside its established responsibility for the RM12 engine that powers Gripen C/D. The older engine is based on General Electric’s F404 design, whereas RM16 belongs to the more powerful F414 family. The distinction creates different maintenance and technical requirements, despite the common heritage of the two propulsion systems and their integration into successive Gripen aircraft generations.
For the RM12, GKN holds the type certificate and has responsibility for technical product support across the engine’s service life. Its work encompasses maintenance, repair, overhaul, technical documentation and the engineering activity needed to sustain airworthiness. The company has also established RM16 support facilities at Trollhättan, including engine test capability. Experience gained from maintaining the older powerplant provides an industrial base for developing related activities on Gripen E/F, although the different engine configurations require their own approved procedures, tooling and technical data.
GKN completed its first RM16 engine run in a test facility at Trollhättan in 2022 as part of preparations for supporting Sweden’s Gripen E fleet. The facility allows engineers to assess engine operation outside the aircraft, supporting maintenance and fault investigation under controlled conditions. Engine test infrastructure has to accommodate the propulsion system’s mechanical interfaces, fuel and control requirements, instrumentation and the forces generated during operation. The ability to maintain and test an engine domestically can reduce dependence on overseas facilities, although the complete maintenance arrangement also depends on access to authorised replacement components and technical information.
As the engine and aircraft exchange control and diagnostic information, support work must account for interfaces beyond the propulsion unit itself. Engine performance and control have to remain compatible with aircraft systems, including cockpit indications, fault reporting, electrical interfaces and the procedures governing operation across different flight conditions. Changes to an engine component or its maintenance standard may require engineering assessment to determine whether associated documentation, test procedures or aircraft integration requirements also need revision. An effective support organisation therefore needs access to both engine expertise and the configuration information necessary to maintain compatibility with the wider aircraft.
GKN has developed this capability through decades of RM12 work, including a continuing enhanced performance programme for Gripen C/D. In March 2026, it delivered the first upgraded RM12 to the Swedish Armed Forces following work involving improved turbine hardware and engine control software. Those modifications belong to the older engine programme and are separate from the newly agreed Gripen E/F partnership. They nevertheless demonstrate the combination of engineering development, maintenance and testing already undertaken within the company’s Swedish propulsion operation.
That domestic maintenance base is also expected to support international Gripen customers, whose aircraft will require parts, technical assistance and approved engine work throughout service. Operators may perform some maintenance locally while relying on specialist industrial facilities for more demanding inspection and overhaul activities. Saab and GKN intend to offer a more coordinated approach to these requirements, bringing together aircraft programme knowledge and propulsion expertise when supporting existing and prospective customers.
GKN’s designation as preferred provider does not establish that a particular export customer has awarded an engine maintenance contract or committed to a specific workshare. Nor have the companies disclosed an agreement value, new production quantity or timetable for expanding facilities. The arrangement establishes their intended relationship and provides a basis for further capability development, with individual support commitments and industrial investments requiring separate decisions. General Electric remains the original developer of the F414 engine family, and the agreement does not alter that underlying technical heritage.
Sweden’s investment in domestic engine expertise will depend on qualified staff, test infrastructure and a continuing programme of engineering and maintenance work. GKN’s existing Trollhättan operation provides a starting point, while the Gripen E/F collaboration creates scope for further responsibility as customer fleets expand. Saab and GKN will now develop the arrangements through which engineering capacity, technical support and international services can be delivered under the new partnership.
