This is a bit of a trick question. You do always need some sort of licensing on top of your 'Authority to Operate' certificate, but the specific type of license might not be a Ship's Radio License. For instance, if you travel between boats you might opt for a Ship Portable Radio License. If you were setting up a Sailing Club and needed a shore base station, you might get a Coast Station Radio License.
Whichever license you register for, it is important to double check that it covers the breadth of use you are anticipating, or you could find yourself in hot water with the authorities.
This is a bit of a trick question. You do always need some sort of licensing on top of your 'Authority to Operate' certificate, but the specific type of license might not be a Ship's Radio License. For instance, if you travel between boats you might opt for a Ship Portable Radio License. If you were setting up a Sailing Club and needed a shore base station, you might get a Coast Station Radio License.
Whichever license you register for, it is important to double check that it covers the breadth of use you are anticipating, or you could find yourself in hot water with the authorities.