To complicate things, there is the possibility to use the name 'Truant of Brighton' as the Part 1 name, and then have the port of registry as well, could be Brighton, might be Cardiff!

In theory, a Part 1 registered boat should show the port of registry..... so I guess theoretically, it would be 'Truant of Brighton of Cardiff'!!!!!!!! However, I think this is unlikely, and the registry would disallow it in reality....

A part 3 (SSR) boat could be called Truant, and as it doesn't have a port of registry doesn't need to show a port..... but it could also be called 'Truant of Brighton' in which case that is what it would show on its transom!

Gottit?