Rosyth needs a follow-on order before Type 31 work runs down

When must a CCV or Type 91-94 order be placed to keep Rosyth economically viable after Type 31?

Soon enough to provide clear follow-on work before Type 31 winds down, with Rosyth central and other yards potentially taking supporting orders.

The decision is needed soon enough to create clear work beyond the Type 31 programme. Shipyard continuity depends on design work, supply-chain commitments, and labour planning starting before the current hulls are complete. Appledore and other yards might take pieces of the wider uncrewed programme, but Rosyth remains central to the large combat-vessel schedule. The order date can therefore matter as much as the eventual in-service date.