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Clearance
The distance between top of mast and bridge or bottom of keel and seabed.
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- Depth needed now for clearance at low water
- Digital Passage Plans for Inspection: What an RYA Instructor Likes to SeeBuild a digital passage plan an RYA instructor can read in 60 seconds. Show “decisions for reasons” with clear evidence. • What they check: clarity, safety margin, reasons, alternatives, backup. • The 4-page pack: route overview, tides and streams, pilotage, weather and limits. • Prove your sources: chart edition, model run time, reference and secondary ports. • Keep it simple to share: GPX, PDF, and one printed summary. • Finish with a checklist you can copy. Read the full guide and make a plan that stands up to inspection.
- Maximum height of tide with clearance underneath charted object
- Pass your Day Skipper Theory first timeDay Skipper theory is not about chasing a pass mark. It’s about proving you understand the method. This guide shows you how to stay calm online, what to revise for the two papers, and the small mistakes that cost marks. Biggest one: heights use the nearest port, streams use the port named at the top of the atlas or tidal diamond page, often Victoria. Plus revision downloads and buoyage flashcards.

