日英：劳斯莱斯和 IHI：Tempest F-X
-下一代战斗机发动机演示器的合作开发-
英国方面：
在规划、数字设计和制造开发方面进行 3000 万英镑的初始投资。
将额外投入2亿英镑（约合303亿日元）的英国资金，用于开发全尺寸演示机。
日本政府和工业界：
英国 Tempest 的开发技术将与近年来一直在进行的 F-X 技术开发相结合。
旨在开发世界领先的下一代发动机。
日本 F-X：
将通过日本、美国和英国之间的国际合作促进发展。
F-X 和 Tempest 都计划在 2035 年部署部队。
劳斯莱斯：
下一代战斗机发动机将在未来为日本和英国创造就业机会。
https://www.aviationwire.jp/archives/241370
UK and Japan agree future fighter engine development
The United Kingdom and Japan
have agreed to the joint development of engine technology for the both the Tempest and F-X future combat aircraft programmes.
Announced by the UK government on 22 December,
the agreement covers joint work on a jet engine demonstrator for the UK-led Tempest,
which is being developed under the Future Combat Air System (FCAS) programme, and the Japanese F-X (unofficially referred to as the F3) programme.
Work on the joint engine demonstrator will kickstart early next year, with the UK investing an initial GBP30 million in planning,
digital designs and innovative manufacturing developments,
the UK government said. “A further GBP200 million of UK funding is expected
to go towards developing a full-scale demonstrator power system, supporting hundreds of highly skilled jobs, including many at Rolls-Royce’s Filton facility in Bristol”.
The Japanese government had not disclosed its level of funding at the time of writing.
https://www.janes.com/defence-news/news-detail/uk-and-japan-agree-future-fighter-engine-development