Charts for use on RIBs must be:
- easy to read
Stanfords for me. They are printed on plastic, not paper, and are 100% waterproof and incredibly durable. I find their cartography very clear, and appreciate their on-line correction service. Their harbour booklets are good, but I would prefer individual sheets as they are easier to fold and don't have staples that pull through.
Their coverage is comparatively limited though, so if necessary I use Imray charts which are waterproof-ish. I don't like their cartography very much though.
I've also used laminated photocopies of chart sections and almanac pages. Although people have gone surprising distances using them, I wouldn't rely on road maps or OS maps as they don't have a lot of the important information.
Chart plotters beat conventional charts hands down when you're out on the boat, but I still prefer paper charts for route planning where possible as it's much easy to get a detailed view of a large area. Using a chart plotter for route planning is a bit like looking at a chart through a toilet roll tube!