Anyone know if the common LORAN sets found in many small aircraft are
readily useable in boats?

I have no idea what voltage small planes use. Most boats have 12v available
to hook to.

Beyond that issue, I see marine LORANs generally have a numeric touchpad
screen, presumably for entering LAT/LONG. A number of the pictures of LORAN
sets for small planes I see don't appear to have these.

Just curiosu if they're transplantable.