Some think that we will be able to communicate during our voyage, but I m not so sure about that. We barely discussed sailing tactics to handle the winds, so it is likely that we will be out of range quickly. I don t mind. As a singlehander I try to save my mental energy for things to come, that probably never come. Sailing in groups is quite popular these years.
Armada is something that is organized.
You even have to pay to join the club. Maybe the organization takes care of administrative things, like clearance papers and a place to put your boat in the next harbor. I think you even get technical assistance at dock when needed. It is not my taste, for two reasons. At sea you are on your own.