Industrial capacity is a long-lead military capability

The Barracuda becomes a case study in the difference between technical development and the industrial ability to manufacture a design at scale. Britain expanded engine output enormously during the war, but a weak starting position created scarcity when new aircraft and ships first needed powerplants. Peacetime policy could have retained excess capacity by encouraging private buyers to choose modern engines. Tax relief is presented as one possible incentive that would stimulate orders without directing companies by law. The specific mechanism is less important than the long lead time: factories, machine tools, suppliers, and skilled labor have to be cultivated before an emergency. The Barracuda's engine difficulties therefore connect directly to the wider economics of mobilization.