Execute and monitor a Yachtmaster passage plan

Execution turns the approved plan into safe navigation; it is not permission to follow a route mechanically. Before each constrained leg, confirm position, chart and publication status, course, tide, weather, traffic, vessel state, crew roles, communications, contingency and the latest point at which the plan can still be changed safely.

Set fixing, log and review intervals from risk. Stable open water may support wider intervals; pilotage, traffic, restricted visibility, a lee shore or a tidal gate require much closer observation. Cross-check electronic positions against independent evidence where practicable, maintain a proper lookout, and record the time, position source, course, speed, significant changes and the decision they caused.

If actual progress, weather, traffic, equipment or crew condition departs from the assumptions, move back through appraisal and planning. Mark the revised route, brief the crew and state the next trigger. Deviation is not a failure when it preserves margin; silently drifting away from a plan without an updated hazard check is.