Back to electronics...I am on a mooring ball 200 yds off Puerto Morelos in Mexico. I can smell the bacon cooking in the restaurant.
My chart plotter shows me 880 yds further east on the other side of the reef. When I passed that reef sailing to the buoyed channel the plotter showed me 900 yds from the reef...
#1 Eyeball showed me to be exactly 100 yds from the reef. In the dark I would not have been within a mile of it and I would have hove-to in deep water until daylight.
I am using Navionics and Raymarine plotter but it is not the plotter that is wrong... it knows where I am... but the fact that the original chart is just off by 800 yds! Which is why, like Vega, I only trust the #1 eyeball.
Phil a Neo-Luddite
Neo-Luddism - Wikipedia, the free encyclopedia