"At any one time a navigator may be manipulating dozens or more weather/current orientated routes including their own and those of other competitors. Overlaying this are the tactical route options that may not be weather related.

Putting aside covering competitors, a Navigators numerous route options will possible cover more than a thousand square miles for just the next 24 hours and tens of thousand of square miles beyond that. To add to the complexity these routes will all change many times a day due to onboard peer review, outside weather updates, onboard weather analysis, real time over the deck weather and observations, competitor route changes etc, This is all being done while doing around 400 - 500 mile a day!!! "

How would you propose anyone competitively accomplish this using paper charts?

Mark