MFD's are now so cheap
, that I can hardly imagine not having one at each helm position, including the pilot house. One cartography chip in one MDF (or three in all three) are shared seamlessly among the different MFD's by networking. Provided only that the MFD with the chip you want is turned on.
I use remote tablet control in my system (not Raymarine, but B&G working on the same principles) and find it extremely useful. It works well, but is not as responsive as the actual MFD, and has no hardware
buttons obviously -- as someone said above, the experience is like remote control of one PC from another. The best use of this is if you need to operate the system from an occasional position like under the sprayhood or from your bunk on a long passage
, or propped up in the galley
. Very useful, but not, in my opinion, a good replacement for a real MFD.
I don't have a pilothouse (and really wish I did), but I do spend a great deal of time at the nav table, the nerve center of the boat, when I have enough crew to have someone topsides on watch. I also do all passage
planning from there. I have a regular MFD down there (a B&G Zeus), plus a couple of smaller MFD instruments (one B&G Triton, one Maretron DSM250). But I also use OpenCPN
on a PC, displayed on a 22" 4K screen
, which is extremely useful for different things, especially passage planning, as the large screen
is almost equivalent to paper charters for getting a larger overview.