View Single Post
Old 03-25-2013, 07:48 PM   #18
markpierce
Master and Commander
 
markpierce's Avatar
 
City: Vallejo CA
Vessel Name: Carquinez Coot
Vessel Model: penultimate Seahorse Marine Coot hull #6
Join Date: Sep 2010
Posts: 12,559
Most of the time I've no particular destination in mind on a day cruise, so currents are largely irrelevant (except for determining turn-around time) and I may be moving 4.5 knots in one direction and 10 knots in the other because of the current. Tide levels can be important too: two hours before low tide we were "pushing mud" (with dredging overdue and chart soundings out of date) occasionally on the Petaluma River last Thursday. Nevertheless, tidal currents in the San Francisco estuary make a whale of a difference on one's forward progress.

__________________
Kar-KEEN-ez Koot
markpierce is offline   Reply With Quote