Diagrams courtesy of : www.lonesentry.com
Battleships-Supported aircraft carrier groups and bombarded land installations.
Carriers- Fighter planes and bombers took off from the decks of aircraft carriers to target enemy ships and land targets. Light carriers, 30-40-planes; large carriers, 100 planes
Destroyers- Heavily armed warships
Destroyer Escorts-Brought troops, supplies, and planes to large ships.
Cruisers-Participated in shore bombardment, protected aircraft carriers, carried anti aircraft weapons.
PT Boats-(Patrol torpedo boats)-Ambushed barges and slow moving ships.
Submarines-Germans had early dominance in this fleet of vessels. They attacked enemy merchant shipping and provided surveillance of enemy ships and coastal installations.
These diagrams are in no way the most extensive compilation of what World War II US Navy Ships. There are countless official and unofficial websites, blogs, and military books devoted to this subject created by experts and history lovers. Again, each category of ship had a specific function and provided crucial support in defending the seas against the Axis powers.