Well, if you look at the game world, you'll find Star Fleet Battles, based on TOS/TAS. Going from biggest to smallest:
Battleship -- this is a beast. Four engines and a ton of weapons. In the game's lore, only the Klingon B-10 was ever constructed, with many delays and cost overruns. Everyone else designed one, but nobody could afford to build it.
Dreadnought -- a true heavy-hitter, with thee engines and half-again more weapons than a cruiser. Many were converted to Heavy Carriers with a boat load of space fighters / attack shuttles. Klingon C-9
Heavy Battle Cruiser -- a maxed-out cruiser, attempting to cram a Dreadnought's weapons onto a cruiser hull. Klingon C-7
Heavy Cruiser -- Our favorite ship. The cruiser is a perfectly balanced work of art capable to handling any mission that comes its way. Klingon D-7 (and the earlier D-6)
Light Cruiser -- basically, three-quarters of a Heavy Cruiser, also an all-around balanced ship.
War Cruiser -- a cheaper Light Cruiser with reduced peacetime capabilities. Many variants including carriers, escorts, and scouts (see below). Klingon D-5
Destroyer -- half of a Heavy Cruiser. The Federation's Saladin-class is affectionately known as the Lollipop due to the top silhouette (one engine and a saucer). Many were built as Electronic Warfare ships, aka "Scouts", with powerful sensor/scanners that doubled as jammers. Also, many were converted to Carrier Escorts to protect the flattops.
Frigate -- a third of a cruiser. Used as a screen for the main war ships. Often converted to carrier escorts, also converted to scouts and supply / transport ships. The Klingon F-5 is either the game's biggest Frigate or smallest Destroyer.
Cutter / Corvette -- The smallest independent warship. For the Federation, this was the main Police Force boat (not part of Star Fleet -- think US Navy/Coast Guard relationship). The Klingon E-4 was a convoy escort and used as a carrier escort.
Gunboats / Fast Patrol Ships -- about 35 meters long with a tiny crew, these were flying weapon platforms. They were too small to operate in deep space without a PF Tender, typically a converted CW. Usually deployed as a flight of six, it was a cheap way of adding a dreadnought's firepower into the battle.
Fighters / Attack Shuttles -- one or two-man combat shuttles, typically in squadrons of six fighter, the cruiser-base carriers usually carried 12 while the dreadnought-based heavy carriers had 24.
I hope that was the type of information you were looking for.
Battleship -- this is a beast. Four engines and a ton of weapons. In the game's lore, only the Klingon B-10 was ever constructed, with many delays and cost overruns. Everyone else designed one, but nobody could afford to build it.
Dreadnought -- a true heavy-hitter, with thee engines and half-again more weapons than a cruiser. Many were converted to Heavy Carriers with a boat load of space fighters / attack shuttles. Klingon C-9
Heavy Battle Cruiser -- a maxed-out cruiser, attempting to cram a Dreadnought's weapons onto a cruiser hull. Klingon C-7
Heavy Cruiser -- Our favorite ship. The cruiser is a perfectly balanced work of art capable to handling any mission that comes its way. Klingon D-7 (and the earlier D-6)
Light Cruiser -- basically, three-quarters of a Heavy Cruiser, also an all-around balanced ship.
War Cruiser -- a cheaper Light Cruiser with reduced peacetime capabilities. Many variants including carriers, escorts, and scouts (see below). Klingon D-5
Destroyer -- half of a Heavy Cruiser. The Federation's Saladin-class is affectionately known as the Lollipop due to the top silhouette (one engine and a saucer). Many were built as Electronic Warfare ships, aka "Scouts", with powerful sensor/scanners that doubled as jammers. Also, many were converted to Carrier Escorts to protect the flattops.
Frigate -- a third of a cruiser. Used as a screen for the main war ships. Often converted to carrier escorts, also converted to scouts and supply / transport ships. The Klingon F-5 is either the game's biggest Frigate or smallest Destroyer.
Cutter / Corvette -- The smallest independent warship. For the Federation, this was the main Police Force boat (not part of Star Fleet -- think US Navy/Coast Guard relationship). The Klingon E-4 was a convoy escort and used as a carrier escort.
Gunboats / Fast Patrol Ships -- about 35 meters long with a tiny crew, these were flying weapon platforms. They were too small to operate in deep space without a PF Tender, typically a converted CW. Usually deployed as a flight of six, it was a cheap way of adding a dreadnought's firepower into the battle.
Fighters / Attack Shuttles -- one or two-man combat shuttles, typically in squadrons of six fighter, the cruiser-base carriers usually carried 12 while the dreadnought-based heavy carriers had 24.
I hope that was the type of information you were looking for.
