Would an Imperial Star Destroyer with Vindicators, strike cruisers, screening cruisers, and twelve Tartans form a useful fleet?
Short answerYes; the proposed mix gives the heavy ship useful cruiser support and several layers of lighter screening vessels.
NotesThe proposed Star Wars formation combines an Imperial Star Destroyer with two Vindicators, four strike cruisers, four screening cruisers, and twelve Tartans. The favourable assessment comes from the distribution of roles: heavier cruisers, lighter cruisers, screening vessels, and a central heavy ship. The Star Destroyer supplies concentrated striking power when the smaller ships need support. This is a fictional fleet example of matching different ship roles within a formation, rather than a claim about a historical navy.