The Niagara class was a type of cruiser, technically a fast cruiser, serving in Starfleet during the 24th century.
Fear of more Romulan hostilities drove its rushed design, its engineers took advantage of the Istanbul fast cruisers and early work on the Galaxy's design, as well as adapting the Ambassador's engineering hull to support its three nacelles and hold more cargo than its peer vessels.
The class is a favorite of Federation diplomats due to their speed and luxurious accomodations.
The prototype was commisioned in 2349.
Thirty-three decks held 585 crew members and another 120 passengers. A total of 7,350 beings could be brought aboard in an emergency, though its ten person
The ships were able to maintain warp 9.6 for 16 hours with tpe 6C6 nacelles and class 6/K warp engine.
Six type IX phaser arrays as well as a forward and aft torpedo launchers fed from a 100 torpedo magazine made up its armaments.
Six shuttlecraft and three shuttlepods as well as a Captain's Yacht made up its auxillary craft.
Deck 1 - Main Bridge
Deck 3 - Phaser Range, Armory, Brig, Security Officers, Forensic Lab
Deck 5 - Gymnasium
Deck 6 - Captain's Quarters, VIP Quarters
Deck 7 - Auxillary Control, Executive Officer's Quarters
Deck 8 - Stellar Cartography
Deck 27 - Main Engineering