[[Image:Rogue Trader Epoch Koronus - cover.jpg|thumb|right|220px|Navigator alongside the captain and his other officers{{Fn|28a}}]]

Aboard spaceships, while the crew might have their varied sentiments towards the mutant at the helm, including officers{{Fn|24}} the captain however often keeps amiable terms with the Navigator.{{Fn|12d}} Whether out of necessity{{Fn|3d}} or genuine trust,{{Fn|12d}} the Navigator is recognisable as one of the most important{{Fn|2a}} and staunchly loyal{{Fn|27}} persons on board, often nicknamed the captain's right hand.{{Fn|2a}} Thanks to their importance towards faster-than-light travel many mutinies have been made null due to Navigator's unwillingness to cooperate with the mutineers.{{Fn|55}} There have been instances of the Navigators instigating rebellions or even taking over the ships in question, though these are rare and managed internally by the edict of the Paternova{{Fn|28b}}{{Fn|26f}}, lest it mar the Nobilite's general reputation.{{Fn|27}} Due to the Navigators' economic autonomy{{Fn|2j}} it is not on the whole wise for a captain to fall out of favour with them, since at any given moment they may relinquish their contract and just decide to abandon the post at the nearest rendezvous with a point of transit,{{Fn|3d}} essentially stranding the crew until another Navigator can be recruited.{{Fn|2b}}

As a polity Navis Nobilite is a highly influential faction,{{Fn|4b}} which is known for patronage of both persons{{Fn|12b}} and projects,{{Fn|3e}} mostly concerned with matters of explorations{{Fn|12h}} and settling{{Fn|18b}} or re-establishing footholds of interstellar routes,{{Fn|29b}} funding expeditions to unknown space,{{Fn|12h}} bringing colonies back into the Imperial fold,{{Fn|29a}} quelling rebellions in Imperial systems with their private armies.{{Fn|30}} While each house acts as its own separate entity, they all are legally obliged to have an agreement of Paternova to back their decisions up, although this only comes to question when the consensus of allowed actions is broken,{{Fn|3l}} which might end up with the transgressing project being well in motion before Paternova relays their decision. One such enterprise of the expedition out to [[Canis Major]] dwarf galaxy was considered insane by most of the other unaffiliated houses, however when Paternova dictated their edict the fleet was already outside communicative range, and whether their plan to establish a micro-empire in the alien galaxy ended in success or failure is investigated only by the members of the misbehaving house.{{Fn|3g}} On the other hand, Navis Nobilite keeps both their secrets{{Fn|2d}} and their monopoly on space travel{{Fn|31c}} with absolute ruthlessness;{{Fn|2d}}{{Fn|31c}} it can ruin the career of an aspiring Rogue Trader or even cast their whole noble house into the abyss of history if they were found to be in possession of one of secrets of the Navigator houses, among them the knowledge of lineages, breeding programmes and prominent [[Novator]]s.{{Fn|2d}} One is unlikely to stumble upon this knowledge accidentally, as Navigator houses don't speak in gothic among themselves, instead cultivating among themselves unique dialects of forgotten antiquity,{{Fn|2c}} and if somehow one was even to glance upon their mapping system they'd be confused with methodologies utterly alien from Imperial ones, along with divisions of space diverging from classical subsectors, mapped and named only in accordance with their own hermetic systems.{{Fn|19a}} Similarly, Nobilite has their eye out for any technology or method of travel that might threaten to encroach on their monopoly;{{Fn|12e}}{{Fn|31b}}{{Fn|31c}}{{Fn|4c}} many are outlawed due either to a technical violation of Imperial laws{{Fn|31b}}{{Fn|4c}} or simply as a favour from the [[Adeptus Administratum|Administratum]].{{Fn|31c}} Those that they aren't able to outlaw they often aggressively buy out,{{Fn|12e}} and people who acquire any of those items bring upon themselves the ire of Nobilite.{{Fn|31c}}

*{{Endn|48}}: [[A Common Ground (Short Story)]]

*{{Endn|49}}: [[Collected Visions]], pg. 9

*{{Endn|51}}: [[The Complete Games Workshop Catalog and Hobby reference - The 2004-05 Edition]], pg. 982

*{{Endn|52}}: [[Dark Heresy: The Lathe Worlds]], pg. 123