I thought it was a general rule with EU authors that "Star Destroyer" was an ISD. If they are a variation thereof, they are usually noted as such (VSD, SSD ect.).Connor MacLeod wrote:True, although someone is probably going to say those might be Victory class instead of Imperator class.
Although it is of note that Mr. David Wolverton refers to the Iron Fist as simply a Star Destroyer, that was later retconned with the introduction of the Iron Fist as a SSD in the Wraith Squadron series (IIRC, up until that point the class of Zsinj's Star Destroyer was up for debate, and the author was operating without full information on the matter).