They are believed to be the ships encountered before the [[Yuctan Incedent]] and the first known Necron harvest. In 692.M41 a layer of impenitrable metal was encountered under the ground of [[Angelis]] which turned out to be a ship which rose out of the sands and left rapidly. It was likley that the ''Angelis Boat'' was the first Dirge Class Raider.

==Sources==