Re: Ipad as sailing instrument....
As a bit of a traditionalist, I still think that navigation belongs at the nav station. I am quite happy not having a chartplotter / iPad / computer / handheld at the helm. Give me a navigator who communicates clearly and succinctly and and a helm who understands. And both know how to use their eyes.
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As I sail, I praise God, and care not. (Luke Foxe)