Written Question·Ministry of Defence·UIN 93097
Navy: Guided Weapons
Tabled: 20 November 2025
Answered: 1 December 2025
Question
Ben Obese-Jecty
Conservative — Huntingdon
To ask the Secretary of State for Defence, what are the requirements of the Royal Navy's a) Stratus LO (Low Observable) and b) Stratus RS (Rapid Strike) programmes.
Answer
Luke PollardThe Royal Navy has a requirement called the Future Offensive Surface Weapon (FOSuW) which will provide a long range anti-ship strike weapon with land attack capabilities, compatible with the Mk41 Vertical Launch System (VLS). The FOSuW requirement will be met through the Future Cruise Anti-Ship Weapon (FCASW) programme, which comprises two concept solutions, STRATUS LO and STRATUS RS. The STRATUS LO concept is planned to be integrated onto the Type 26 frigate to meet the Royal Navy FoSUW requirement.