Choose your study region

Choose a course collection, not your nationality. Changing region does not change your courses, progress or access.

Compass network home

Optional preference saved in this browser on Compass Revision. It does not sync between devices or the separate course websites. You are never redirected automatically.

All questions
Boat handling

What is the safest close-quarters speed principle?

Short answer

Use the minimum speed that preserves control

Minimum useful speed reduces energy and preserves time, but must still leave demonstrated steering, stopping and escape control. Revise slow-is-control.

Sources and scope

Reviewed by Richard Moore on . This answer is scoped to united kingdom and general recreational seamanship; check the current chart, publication, local rules and official operational guidance before acting afloat.

Quick check

What is the safest close-quarters speed principle?