Navy: Fuels
2026-06-09 · Ministry of Defence · 8731 · Official question
Question
To ask the Secretary of State for Defence, what estimate the Royal Navy has made of the cost of the incremental move to sustainable aviation fuel as set out in the UK Government's SAF mandate.
Answer
Royal Navy F-44 military aviation fuel is exempt from the Sustainable Aviation Fuels (SAF) mandate, and no estimates have been made of the cost of transitioning to SAF. The Ministry of Defence continues to monitor developments in SAF and assess their pote...