In the late-2260s, under the command of Captain Droga, the vaQjoH was fitted with Romulan cloaking device. Although Droga enjoyed the stealth that the cloak afforded, he hated the technological failures and malfunctions that the device caused.
In 2268, the vaQjoH tracked the Federation superfreighter, SS Ephialtes, to the qul'mIn star cluster, where it confronted them. Droga threatened to board the freighter and plunder its cargo of unrefined minerals, but was thwarted by the arrival of the USS Enterprise. (VAN novel: Storming Heaven)
As of 2268 unless otherwise noted.