All this data is potentially out of date, and should be taken with a truckload of salt
While many might argue that the Naglfar is vastly inferior when compared to other dreadnoughts, because of malformed slot layout, and split weapon systems it also the only vertically designed dread
The Naglfar has 5 high slots unlike any other dread. This allows it to fit 2 Citadel Torpedo Launcher I and 2 Quad 3500mm Siege Artillery I in addition to the Siege Module I One of the downsides of this design is that the increased number of high slots comes at the expense of the med/low slots of which the Naglfar has one less total then other Dreadnoughts.
This gives the Naglfar roughly identical raw damage to the other dreadnoughts if no damage increasing modifications are taken into account. However the split mechanisms of firing means it falls behind in raw damage numbers as soon as damage modifications are involved due to each of those only affecting half of the fitted weapon system while on all other dreadnoughts each fitted damage modification affects every equipped weapon system.
Naglfar, in Norse mythology, is described as a ship made entirely from the fingernails and toenails of the dead. During Ragnarok it will sail to the battlefield and lead the hordes against the gods.
Below are additional ships images. Click the image below for a larger version: