Admiral Graf Spee is the concrete test case for the counterfactual. Patrol aircraft based from Freetown and other West African trade-route nodes could spot the raider, force it to avoid covered areas, or let British planners infer where it was likely to go. Gaps off neutral Uruguay and Argentina could then be watched by surface forces rather than aircraft based from politically unavailable ports. In the Indian Ocean, avoidance might instead drive the raider toward Tribal-class destroyers seeking a close torpedo attack rather than an 11-inch-gun duel. The claim is therefore about detection and constrained movement, not flying boats defeating an armored raider alone.
Chapter · 49:14-52:48
How patrol aircraft might constrain Admiral Graf Spee
Distributed air patrols might not sink a commerce raider directly, but they could narrow its routes and steer it toward waiting surface forces.