Oceanic Voyage Attrition

Oceanic voyage attrition is the source’s frame for the cumulative loss of ships, crews, health, command capacity, and navigational options during early modern long-distance voyages. In 14.武士威廉：大航海时代的日本和西方, [[WilliamAdams|William Adams / 三浦按针]] begins in a five-ship expedition, but the route is degraded by fever, hunger, failed raids, storms, separation, capture, attacks on landing parties, scurvy, and desertion before one damaged ship reaches Japan.

The concept extends Scurvy Nutrition Insight from a disease-specific page into the wider system of maritime survival. Scurvy matters, but it is only one layer: political hostility, route choice, cargo mismatch, local reputation left by earlier Europeans, and weather all compound into mortality.

Key Claims

• Long-distance maritime risk is cumulative rather than a single disaster event.
• Strategic route choice can be driven by commercial constraints, such as avoiding Iberian-controlled routes or seeking markets for unsuitable cargo.
• Health failure reduces seamanship and decision quality, which then increases further voyage risk.
• Confessional Trade Conflict and imperial reputation can shape how stranded sailors are treated when they seek food or safety.

Connections

• [[WilliamAdams|William Adams / 三浦按针]] - central voyage case.
• England, Netherlands, Spain, and Portugal - maritime powers shaping route and risk.
• Scurvy Nutrition Insight - disease-specific branch that this concept broadens.
• Long-Distance Trade Friction and Freedom of Navigation Trade Order - adjacent trade and passage-order concepts.