See this website:
http://en.wikipedia.org/wiki/Roman_Navy#Ship_types
A group of boats is a fleet.
Freedom Boat Club of Plymouth has a variety of boats. Visit FreedomBoatClub.com for more information on their type of fleet.
All of the boats commissioned for the First Fleet made it to Australia.
Anything above the number one is considered a fleet.
A Fleet
The Navy has the fleet & that will never be publicized for obvious security reasons.
It is called a fleet.
A collective noun is a noun used to group people or things in a descriptive way.A collective noun is not used for a singular noun such as 'boat'.The standard collective noun for boats is a flotilla of boats.
a fleet
the boats were very fleet so the sea police gave them a ticket
The officers, marines and sailors on the First Fleet were permitted to get off the boats at the various stops along the way, but convicts were never permitted off the boats.
Flotilla, Regatta, Squadron,