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- Apprentice Mate Steersman (Western Rivers (Any Appropriate Tonnage)) »
- Q425 - Navigation General: Western Rivers
17. A backlash below a lock is defined as __________.
A backlash below a lock is defined as an eddy forming along the lower guide wall. This localized current, distinct from the main downstream flow, is a recognized phenomenon in inland lock operations and can affect vessel control.
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