The Exorcist-class Grand Cruiser is a Vengeance-class Grand Cruiser variant that was originally developed as a long-range patrol vessel, capable of self sufficiency for long periods of time away from fleet support. Usually operating with two or three squadrons of Escorts, Exorcists were often posted to the far-flung corners of the Imperium to patrol the edges of the Eastern Fringe and into the galactic Halo Stars.
The Exorcist was originally developed for long range patrols, capable of extended self sufficiency. Operating with a handful of Escorts, Exorcists brought the Imperial flag to far-flung corners of the galaxy. However, over the millennia the Exorcist has been replaced by ships such as the Mars-class Battlecruiser, though some were kept on in reserve fleets or requisitioned for long patrols. This falling out of favour has meant that many Exorcists have ended up in the hands of Rogue Traders, who find their self-sufficiency and large hanger bays quite useful for their needs. Beyond the light of the Imperium, a vessel capable of long cruises and able to defend itself is quite useful, and the rugged Exorcist fits the bill well.
Some of the Exorcists were kept on by fleets on the fringes of the Imperium, to plough the long lonely patrol routes into the galactic halo. Many Exorcists were used as colonial transports. The entire penal colony of Brandt 764 was moved en masse by Exorcist Grand Cruisers to populate and work Tora Alpha, a world beyond the Eastern Fringe, discovered by (and named after) the famous Rogue Trader Foulway Tor. The Exorcist squadron, led by the starship named the Light of Ascension, was then used as convoy escorts for the ore transports returning to the Imperium, and played a major part in the defence of the star system when it was attacked and eventually overrun by a Tyranid Hive Fleet.
- Hull: 7.3 kilometres long, 1.1 kilometres abeam at fins approximately.
- Class: Exorcist-class Grand Cruiser.
- Mass: Approximately 37 megatonnes.
- Crew: Approximately 112,000 crew.
- Acceleration: 1.99 gravities maximum sustainable acceleration.
- Battlefleet Gothic Magazine 4, pg. 3
- Rogue Trader: Battlefleet Koronus (RPG), pg. 21