At this point, in the Gate universe, Earth has Asgard weapons which make salvaging ancient warships more or less unnecessary. But at the time of "The Return", Earth's warships were still dependent on rail guns and missiles, which were largely ineffective against Hive ships and, possibly, Ha'taks.
So why didn't they try to salvage the Tria? Was an explanation given in any episode, or are we to simply understand that her hyperdrive is beyond repair?
Anyone have any reasons?