Admiralty – tide by tide

How to cope without paper charts

UPDATE APRIL 2025

After centuries of printed maritime chart publication in the UK, the options are shrinking rapidly. Until this month it looked as if they would all soon be gone after Imray said it was ending paper chart production – though there is now a reprieve after the announcement of a joint venture with the Austrian cartographers Freytag & Berndt.

Good luck to them, and let’s hope it succeeds. But the precariousness of the paper chart business suggests that a wise owner should still prepare now for entirely electronic navigation.

Luckily small craft can learn a lot from the all-electronic bridges of big ships, which have been paperless for years. That seems to be where we are all headed in the next few years whatever happens to paper charts, which for most people I know are now relegated to passage planning and rarely updated.

I’ve collected and updated material from previous posts in a new note, because events have been moving rather fast.

Here is a link to the note.

Another Admiralty problem

What I didn’t realise when I wrote the recent post on the UKHO delaying the end of Admiralty paper charts was that there was a sting in the tail – they had wanted to drop raster electronic charts as well. That has also been delayed a few years to 2030 while they think about it.

Admiralty gives in

The revolution has been postponed: the United Kingdom Hydrographic Office has delayed the phasing out of its Admiralty paper charts for four years, to 2030. This follows pressure from the Royal Yachting Association and others.

The argument against losing paper charts sooner is that adequate electronic alternatives for small craft – especially small commercial ones – will not be ready in time.

RYA electronic chart training has missed the boat

The near-universal shift by small boat sailors from paper to electronic charts has left the Royal Yachting Association’s training courses floundering in recent years.

That was underlined when Admiralty, owned by the UK Hydrographic Office and one of the world’s gold standard official chart brands, said in July that it will stop selling paper charts altogether by the end of 2026.

Is your chart relying on an 1860 survey?

Footnote to cruising the Scillies: piloting there is a reminder of the importance of proper Admiralty charts, because they show the age of the surveys on which they are based, unlike any of the proprietary ‘vector’ charts available on chartplotters.

The Scillies is a mixed area from this point of view. Some of the surveys of the area were last done in 1860 – 1904 by lead line, probably from boats carried on naval survey ships and rowed up and down in straight lines quite a long way apart, so rocks could easily be missed. Other parts of the islands were surveyed at a range of different dates in the 20th century. Continue reading “Is your chart relying on an 1860 survey?”