Question to the Ministry of Defence:

To ask the Secretary of State for Defence, what savings measures his Department has undertaken to reduce the complete costs of the UK's F-35b fleet from £9.134 billion to £8.538 billion.

The reduction in cost has resulted from measures taken throughout the programme to reduce aircraft procurement and flying costs. The UK continues to work closely with our partner nations, as part of the US-led F-35 global programme, to identify efficiencies and drive down programme costs.