The Type 91, the Royal Navy's planned uncrewed arsenal ship, needs a missile silo the Ministry of Defence admits isn't on the shelf, and the destroyer meant to carry it was just cancelled.
On 30 June 2026, the UK Ministry of Defence updated a procurement notice that acknowledges the Royal Navy's next-generation warship concept has no launcher to call its own. Request for Information 715865497, posted to the MoD's Jaggaer One contracting portal, asks industry for help designing "Future Integrated Air and Missile Defence Silos" and acknowledges in the same document that current and planned maritime launchers carry "substantial platform-level constraints" incompatible with uncrewed vessels.
The vessel the RfI is built around is the Type 91, the Royal Navy's planned uncrewed "arsenal ship." The name is shorthand from trade press; the MoD's Defence Investment Plan describes the underlying concept as a floating weapons battery inside a disaggregated ship-sensor-effector network, where the ship carries the missiles and other platforms handle targeting and communications. A vessel of that kind is meant to stay at sea for roughly 30 days without a crew, loitering and firing, the operational premise of the MoD's broader Hybrid Navy push.
Today's naval silos, including the Mk 41 vertical launch system and its derivatives, were designed for crewed warships. They need hands-on maintenance to reload, certify, and clear faults, a model that does not survive a 30-day uncrewed endurance target. The MoD's updated RfI text describes current and planned silos as "not optimised for remote operations," language trade coverage read as a public admission that the architecture is not yet available off the shelf.
The Type 83, the Royal Navy's planned air-defence destroyer that would have carried a next-generation silo into service in the late 2030s, was cancelled as part of the Defence Investment Plan published late last month. The like-for-like platform the Type 91 was meant to complement is gone. In its place the Government has committed to at least six new air-defence warships, with around £5bn of the defence budget earmarked for drones and a further £15bn secured by the new Defence Secretary to back the shift.
The RfI sketches two paths: a deliberate investment in a new launcher tuned to remote operations, or a route that leans on commercial, containerised launch systems adapted for naval use. Neither is stated MoD policy. The document is asking industry to help pick.
Naval Technology's analysis reads the moment as a structural contradiction inside the Hybrid Navy concept, a 30-day uncrewed endurance target set against a launcher that needs a crew to maintain. The RfI also reads as a signal in the other direction: a procurement document published in public, on a tight timeline, telling suppliers what the MoD actually needs before it locks the requirement into an unbuilt ship.
The RfI is open on Jaggaer One. Whether a credible launcher architecture emerges, or whether the Type 91 ends up scaling down its endurance target to fit an existing VLS, is the decision the document is now forcing into the open.