questionText: To ask the Secretary of State for Defence, pursuant to the answer of 21 January 2026 to question 105586 on Navy: Shipping, is the Patrick Blackett (a) in service with the Royal Navy and (b) a commissioned warship.
answerText: The XV Patrick Blackett is an experimental vessel, operating under a Blue Ensign. While it is in service with the Royal Navy to test new technologies, as an experimental vessel it is not a commissioned warship.
heading: Navy: Shipping