How continuous shipbuilding preserves skills and controls cost

The industrial case for a high-low fleet goes beyond the price of individual hulls. A steady programme of complex and simpler orders can keep yards active and sustain the wider industrial base. Lower-end ships could be sold or placed in reserve as newer units left the line, allowing construction to continue instead of keeping each hull for decades. Regular work preserves yard and supplier skills and maintains demand for engines, vertical-launch systems, combat systems, and training. It also creates enough predictable business for competitors to challenge an incumbent supplier. In a feast-and-famine cycle, firms charge more during busy years to carry people and facilities through the next gap. Consistent production can reduce costs across the fleet.