The Venom? I started off with a simple post responding with a technical answer to a technical post. You've quoted me in nearly every post you've made since then and described me as illogical and accused me of making weak arguments and anecdotal responses.
How you navigate is up to you but some people reading this post will want to decide whether- your argument is correct and they should blindly put all their faith in the magical box with a picture of their boat in the middle, or if they should take a more balanced approach, and try to mix in a few conventional navigation techniques for when their ECS fails or is inaccurate or need to navigate their life raft because they made a poor navigational judgement and they managed to sink their boat on a reef the ECS said wasn't their.
How do I draw a parallel between Navigating an Ice Breaker and Navigating a cruising yacht? Well for one thing I do both, so it's pretty easy for me to make the parallel. Many people have asked you what kind of evidence you seek? Technical evidence is irrelevant to you, anecdotes are silly, expertise from professional navigators is illogical.
I've not only Navigated Ice Breakers, but I've commanded numerous different commercial
and federal vessels some as small as 60 feet. Do you believe the principles of navigating a 60 foot research
ship is significantly different from the principles that apply to yacht navigation?
The answer is simple. Take a balanced approach- use your magnetic to verify the heading marker on your ECDIS.
Plot DR's and compare them against the position on your ECDIS from time to time, if you notice an incongruity- investigate further until you find the cause of the problem.
Compare the depths on your sounder to the depths on electronic charts- look for incongruities.
If you have a RADAR- compare the shape of the shore line to the one shown on the RADAR
Investigate your landfall through ports
guides, sailing directions and by talking to people who have been there before. Get your hands on a picture compare it to what you see.
Your ECS says you are in the middle of the channel. But are you between the red and the green?
You're Electronic Charts and your paper charts say there's no shoal over there, but you hear the distinct sound of breakers. I'd say that's definitely worth investigating. Wouldn't you?
Please explain to the other readers what's illogical about my approach to navigation.
I have never once argued against the use of electronic charts. I have simply encouraged the use of multiple navigational aids because relying on one device that is known (by most of us) to have inherent inaccuracies and flaws is unwise.
You realise the GPS satellite
network is controlled by the US government
? You realise they can simply switch it off? And if they had a viable threat of an attack on US soil using GPS guided devices they wouldn't hesitate to turn off the GPS network to prevent such an attack?
What if you're surfing your Cat between a couple of reefs
at the exact moment they switch off the signal? Wouldn't it be nice to be in the habit of cross referencing your position with alternative methods right then? You referenced how inaccurate the LORAN
C was in an earlier post- well they're even less accurate now, since the US and Canadian governments switched off the DF antennas?
You may make a choice, to use simple navigation techniques and avoid challenging situations- and that's fine, it's another way to keep the risk down. Some people on here will no doubt be navigating in very challenging situations and will navigate with all the prudence of a professional because they need the cards stacked in their favour.
This will be the last time I respond to your Chart Plotters are the only thing worth having philosophy. Your stubborn refusal to see the truth here is an unconquerable task.