There’s even more need to update electronic charts than paper charts, especially as chart plotters display your position to a few metres on the chart and people sneak ever closer to obstructions, believing their charts and position to be accurate to the nearest centimetre.
That’s all very well, but few people go to sea these days without electronic charts on board. Updating paper charts is a simple matter of consulting the updates given in a relevant Notice to Mariners and transferring these via a trusty purple pen to the chart: David Rainsbury wrote about how to update your paper charts in PBO September 2014. Rocks might not move, but areas are resurveyed all the time – and sandbanks and mudbanks certainly do move, not to mention new buoyage and wrecks which appear all around our coasts – and we need to take advantage of any updates. While we rely more and more upon our electronic charts, they are only as accurate as their source data.
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