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Old 07-09-2017, 07:41 AM   #3
smitty477
Guru
 
City: Northport
Join Date: Aug 2015
Posts: 2,046
I suggest they get a copy of the Eldridge tide and current book ASAP as the entire trip will be in areas where currents will matter. With a nominal 7 knot speed their speed over ground will vary at least between 5 and 9 knots on the entire trip and up to as much as 2 to 12 knots or more in some spots - best tp plan these areas a little ahead of time.
Here is an older post that has some more details on that....


http://www.trawlerforum.com/forums/s...ver-32354.html


We boat out of Northport NY and some of our common destinations are equally in either direction towards Narragansett where they will leave and up the Hudson where they will be going. It is just about equal distance from Block Island to Northport as it is from Northport to Kingston NY if you take the Harlem river up - 100 nmiles each leg. There are plenty of easy in and out stops along the way so the key will be to plan your speeds which will be directly affected by the tides/currents so knowing the dates times of planned travel will greatly vary your plan.
The Eldridge book will also point out that currents even vary a lot within LI sound dependent upon how far north or south you are and other areas near NY.
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