Antares charts

Very Large scale wgs 84 electronic charts

Bells and whistles

All current charts show depth of water below datum but what use is that? What we want to know is where can we go in our boat with an adequate safety margin. With electronic charts it is easy to input time, boat draught and required safety margin and re-draw the chart in three simple colours: ‘go’, ‘no-go’ and ‘living dangerously’….. All subject, of course, to tides behaving as predicted…..

Why not show actual depth?

Currently we do not have any tidal stream data.  We have the equipment - it is just a question of time!

Tidal streams

The basic large scale charts are just a start. We yachtsmen really need lots more……! Comments on these ideas and other suggestions would be most welcome.

This technique, widely used in other parts of the world, could be used to great advantage in some of the more popular anchorages in Scotland. Tinker’s Hole is a classic case in point. We plan to identify locations where this  would be beneficial.

Anchor off and tie ashore

UKHO charts indicate the nature of the bottom with a single letter, eg ‘s’ for sand or ‘r’ for rock. What they don’t do is indicate the depth of sediments suitable for anchoring—a foot of mud on top of a horizontal slab of polished granite is of use only to the smallest of craft. We aim to develop and make available surveys of anchoring conditions.

Quality of bottom holding

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Regulars will notice that not much changes on this page. There is still plenty to do—it is ‘just’ a question of time…..but one day……!!