Imperial specs?


Prodigal Viking of the Librarium
Staff member
Necromunda Custodian
Feb 17, 2011
Brooklyn Park, MN
Are there any good sources for specs on Imperial vessels? I want to run a Wrath and Glory scenario on a stricken vessel and it would be a lot easier if I could find specifics on them. The only vessel I found much on in my own searching is the Grand Cruiser:
  • Hull: 7.5 kilometres long, approximately 1.8 kilometres abeam at fins.
  • Class: Avenger-class Grand Cruiser.
  • Mass: 40 megatonnes, approximate.
  • Crew: 141,000 crewmen, approximate.
  • Acceleration: 2.2 gravities maximum acceleration.
I'd also love floor plans if they exist.


Yakmarines 2nd Co. Word Priest
Yak Comp 2nd Place
Tribe Council
Jun 1, 2016
Ellon, United Kingdom
IIRC they vary quite considerably depending on the source. I am fairly sure the Rogue Trader novels by Andy Hoare have some details on sizes and crew capacities for the protagonist's ships.

The Lexicanum has information on some ships, for example a Sword class frigate, and I'm pretty sure some of the fluff from the BFG rulebook (available in the vault) has some as well.

I've never seen a real floor plan, but I have seen a plan someone made for a Necro campaign years ago. Sadly it was in the "I've drawn this on a huge sheet of plotting paper by hand" days, so no digital copy.
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Gang Hero
Yak Comp 3rd Place
Mar 29, 2016
Halifax, NS, Canada
  • Hull: Imperial Escort.
  • Class: Sword-class Frigate
  • Dimensions: Approximately 1.6 kilometres long, 0.3 kilometres abeam at fins.
  • Mass: Approximately 6 megatonnes.
  • Crew: Approximately 26,000 crew.
  • Acceleration: 4.5 gravities maximum sustainable acceleration.
  • Dark Heresy: Enemies Without (2nd Edition) (RPG), pg. 35
  • Battlefleet Gothic Magazine 1, "The Imperial Navy," & "Battlefleet Corribra," pp. 8, 37
  • Battlefleet Gothic Magazine 7, "Wolf Packs - Human Pirates in Battlefleet Gothic," pg. 20
  • Battlefleet Gothic Rulebook (Specialist Game) pg. 113
  • Rogue Trader: Core Rulebook (RPG), pg. 195
  • Rogue Trader: Battlefleet Koronus (RPG), pg. 60-61, 66
  • Imperial Armour Volume Three - The Taros Campaign pg. 39
  • Execution Hour (Novel) by Gordon Rennie
  • Warriors of Ultramar (Novel) by Graham McNeill
  • Grey Knights (Novel) by Ben Counter, in The Grey Knights Omnibus, pp. 196, 197, 206-219
Some folks have pointed out that comparing those specs with, say, a contemporary aircraft carrier, the crew number per volume seems ridiculously low. Others have suggested that said crew number must obviously NOT include servitors as 'crew,' but that they would certainly make up a large amount of the ship's labour and technical compliment.