Advancing UK Aerospace, Defence, Security & Space Solutions Worldwide
  • Home
  • /
  • Defence
  • /
  • GKN Aerospace to upgrade JAS 39 Gripen's RM12 engine

Defence

GKN Aerospace to upgrade JAS 39 Gripen's RM12 engine

The Swedish Defence Materiel Administration (FMV) has awarded GKN Aerospace a contract to develop and improve the RM12 engine, which powers the Swedish fighter aircraft JAS 39 Gripen C/D.


 
Image courtesy GKN Aerospace  

The engine upgrade will be implemented in cooperation with MV and SAAB. GKN Aerospace has built a 90-year strategic relationship with the Swedish Air Force and holds OEM-level scope of responsibility for the RM12 engine. The £2 million (SEK 23.6 million) contract is the last part of a development project that GKN Aerospace has been conducting since 2019.

Advertisement
Security & Policing Rectangle

In addition to enhancing key components within the engine, the development work also involves updating the engine software in the aircraft system. This will be delivered in partnership with SAAB and with GE Aerospace who is also supporting the development work. Upgraded RM12 engine testing will take place at GKN Aerospace’s facility in Trollhättan, Sweden, with flight testing undertaken by SAAB and FMV.   

In addition to improved engine performance, the upgrade will also contribute to lower lifecycle costs for the users of the aircraft. The project will also strengthen the already world-leading engine capability within Sweden, ahead of the ongoing establishment of product support for RM16, the engine for the JAS 39 Gripen E/F.   

Stefan Oscarsson, Vice President of Government & Space for GKN Aerospace Engine’s business, said: "We are extremely proud to contribute to strengthening Swedish defense capabilities. The order means that we at GKN Aerospace continue to strengthen our competence and ability to handle complex, full-engine systems for fighter aircraft for the future."
 

 

Advertisement
ODU RT

 

 

Advertisement
Babcock LB Babcock LB
Rolls-Royce expands military engine capabilities

Defence

Rolls-Royce expands military engine capabilities

29 January 2026

Rolls-Royce is expanding its mtu Series 199 for military land vehicles into a comprehensive product family with an increased power range for new vehicles and for the repowering of existing vehicles.

Plextek joins MoD

Defence

Plextek joins MoD's DDAD framework

28 January 2026

Plextek has been selected as a supplier on the £180 million Digital Decision Accelerators for Defence (DDAD) Framework, supporting the British Army's ASGARD programme, its flagship Transformative Capability Initiative focused on battlefield decision-making and digital targeting.

Fenner Precision Polymers achieves AS9100 accreditation

Aerospace Defence

Fenner Precision Polymers achieves AS9100 accreditation

27 January 2026

Fenner Precision Polymers has achieved AS9100 accreditation for aerospace and defence manufacturing activities conducted on its site in Lincoln.

RUSI recommends prototype warfare for Royal Navy adaptability

Defence

RUSI recommends prototype warfare for Royal Navy adaptability

27 January 2026

Royal United Services Institute (RUSI) has released a report suggesting the Royal Navy and wider UK military has the opportunity to strengthen their institutional role in the testing and procurement of new military capabilities, which allow them to keep up with the rapid evolution of military technology.

Advertisement
Security & Policing Rectangle
Kier Pritchard announced as Ministry of Defence Police Chief Constable

Defence Security

Kier Pritchard announced as Ministry of Defence Police Chief Constable

27 January 2026

Lucy Bogue, Director SJC GUARDIAN, has announced the appointment of Kier Pritchard as Ministry of Defence Police (MDP) Chief Constable following an open selection process.

MoD launches team to back British small businesses

Defence

MoD launches team to back British small businesses

27 January 2026

A new team dedicated to supporting small British businesses to win more defence contracts has been established today by the Defence Readiness and Industry Minister, Luke Pollard MP, on a visit to the National Manufacturing Institute Scotland (NMIS).

Advertisement
ODU RT
Advertisement
General Atomics LB