Mine is going on a swing-arm, with a custom wooden block spacing it out so it clears edge rails on the wall. This allows the monitor
to face the helm
for charting use, park at the nav station for planning, or be positioned directly above the computer workstation for geekery/writing/podcasting/music. In each position, it can be tied off or fixtured so it won't go swinging wildly, and there is also a fully retracted position (very well secured) for rough conditions.