Speaking at the First Sea Lord’s Sea Power Conference, First Sea Lord and Chief of Naval Staff Admiral Sir Ben Key, stated that the Mark 41 Vertical Launch Silo is fitted to the Type 26 and added, “We intend to fit it also to our Type 31 frigates. This will enable potential use of a large variety of current and future anti-air, anti-surface, ballistic missile defence and strike missiles” It has not yet been announced Future Offensive Surface Weapon’s (FOSW) speed and range.