River-class patrol ships as forward-based sloops

Should Appledore have remained open, and would more River-class ships be useful?

Yes; a sustained River-class or mine-countermeasures program could support the yard, while upgraded Rivers could serve as economical forward-based sloops.

A continuing River-class or mine-countermeasures programme could have provided Appledore with a viable workload. A yard needs sustained work rather than one or two isolated contracts. Type 26 frigates are too large for Appledore, while Irish offshore patrol vessels approach the upper end of what the yard can handle. The larger Batch 2 Rivers can serve as modern sloops for persistent overseas presence, with a 40 mm gun forward and a close-in weapon aft as modest upgrades. Sandown-class minehunters already deploy to the Gulf, but their small, cramped hulls are less suitable for long overseas assignments. Full aviation facilities, extra fuel, radar, and weapons would quickly push a River-derived design toward frigate displacement, so the sloop role needs firm limits.