Originally Posted by Tomas
Reliability of GPS chart plotters is bulletproof.
Anybody that risks there life on the ability of electrical connections or electronics on an open rib is a fool.
Switch on a GPS and the first thing you see is a disclaimer telling you that the GPS is not capable or not warranted to replace conventional navigation methods. That's good enough for me!. GPS's are fantastic devices but they are electrical and electrics fail. You have to be able to resort to conventional methods.
I spend a lot of time on commercial Ships from dodgy old commercial tugs to the most sophisticated ROV/DSV's. I have never been on a ship that didn't have at least 3 stages of redundancy on the electrical supply, How many does the average RIB have.
Commercial ships are required by the IMO to manually plot there position on a chart every hour, how they gonna do that if the don't get trained in conventional Nav.
The Sea is similar to a Polar bear beutiful, large and awexome but it will kill you in an instant and it's never your friend.
As articulate and reasoned as your arguments are I think they are fundamentally flawed and I urge you to reconside. Don't forget the fundamental rule of safe boating plan for the worst and hope for the best