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[[Image:RotorCannonArt.jpg|thumb|right|200px|Rotor Cannon]]
'''Rotor Cannons''' were weapons used by the [[Imperial Army]] and [[Space Marine Legion]]s during the [[Great Crusade]] and [[Horus Heresy]]. These weapons were multi-barreled [[Stubber]]s, using electric motors to maintain an extremely high rate of fire from their spinning barrel. Their medium caliber-slugs lacked the power of [[Bolter]] shells, but nonetheless the sheer volume of them proved effective against unarmored hordes of foes and fleshy [[Xenos]]. Eventually, the more famous Space Marine [[Assault Cannon]] was developed from the Rotor Cannon.{{Fn|1}}
Their origins obscured by time, many patterns of weapon employed by the Space Marine Legions date back to the Dark Age of Technology or before. Simpler to produce than most heavy weaponry, Rotor Cannon found use in many Legion Tactical Support squads.{{Fn|2}}
== Known Patterns ==
'''Proteus pattern''' - Unknown origin, in use since long before the coming of the Emperor and the Age of the Imperium.
==Sources==
*{{Endn|1}}: [[The Horus Heresy Book One - Betrayal]], pg. 233
*{{Endn|2}}: [[https://www.forgeworld.co.uk/en-GB/Proteus-Pattern-Rotor-Cannon-Set|Forge World Webstore - Roto Cannon Set]] (accessed 2/22/2020)
[[Category:Weapons (Astra Militarum)]]
[[Category:Weapons (Space Marines)]]
