M990 electrothermal-chemical smoothbore cannon: Difference between revisions
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|ammotype=150mm shells {{C|various}}{{Ref/Reuse|Universe}}{{Ref/Reuse|Enc22}} | |ammotype=150mm shells {{C|various}}{{Ref/Reuse|Universe}}{{Ref/Reuse|Enc22}} | ||
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|operation=[[Wikipedia:Electrothermal-chemical technology|Electrothermal-chemical]] | |operation=[[Wikipedia:Electrothermal-chemical technology|Electrothermal-chemical]] | ||
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According with its new operating principle, the M990 breaks legacy munitions compatibility with its predecessor models and fires a much larger 150mm shell, and is capable of firing guided munitions and projected future advances in energetic propellants.{{Ref/Reuse|Universe}} Some of the projected propellant advances are already in service among the fleet of [[ONI Scorpion|select Scorpion variants]] operated by the [[Office of Naval Intelligence]]'s [[ONI Security|security forces]], which use an experimental shell and the latest energetic propellants.{{Ref/Game|H5G|List of REQ cards|REQ Card|Detail=ONI Scorpion Description|Quote=ONI spares no expense with its "security" Scorpions, outfitting them with experimental ammunition using the latest energetic propellants. Advanced Scorpion with heavy armor and upgraded cannon.}}{{Ref/Site|URL=https://www.halowaypoint.com/en-us/news/canon-fodder-a-time-to-give-tanks|Site=Halo Waypoint|Page=Canon Fodder - A Time to Give Tanks|D=14|M=07|Y=2021}} | According with its new operating principle, the M990 breaks legacy munitions compatibility with its predecessor models and fires a much larger 150mm shell, and is capable of firing guided munitions and projected future advances in energetic propellants.{{Ref/Reuse|Universe}} Some of the projected propellant advances are already in service among the fleet of [[ONI Scorpion|select Scorpion variants]] operated by the [[Office of Naval Intelligence]]'s [[ONI Security|security forces]], which use an experimental shell and the latest energetic propellants.{{Ref/Game|H5G|List of REQ cards|REQ Card|Detail=ONI Scorpion Description|Quote=ONI spares no expense with its "security" Scorpions, outfitting them with experimental ammunition using the latest energetic propellants. Advanced Scorpion with heavy armor and upgraded cannon.}}{{Ref/Site|URL=https://www.halowaypoint.com/en-us/news/canon-fodder-a-time-to-give-tanks|Site=Halo Waypoint|Page=Canon Fodder - A Time to Give Tanks|D=14|M=07|Y=2021}} | ||
The [[XM820B4 Scorpion]], an experimental model produced by [[Hannibal Weapon Systems]], uses the M990 ETC gun's hull and structure as a base for the integration of a fast-discharge [[laser]] weapon system. Aesthetically, this weapon has few outward differences than the standard M990, though is functionally a [[directed energy weapon]] rather than a conventional tank gun.{{Ref/Game|H5G|List of REQ cards|REQ Card|Detail= | The [[XM820B4 Scorpion]], an experimental model produced by [[Hannibal Weapon Systems]], uses the M990 ETC gun's hull and structure as a base for the integration of a fast-discharge [[laser]] weapon system. Aesthetically, this weapon has few outward differences than the standard M990, though is functionally a [[directed energy weapon]] rather than a conventional tank gun.{{Ref/Game|H5G|List of REQ cards|REQ Card|Detail=Hannibal Scorpion Description|Quote=This is but one of Hannibal Weapon Systems' tank test beds fitted with the latest in vehicle-borne directed energy weapons. Advanced Scorpion with heavy armor and fast-discharge laser currently undergoing trials within UNSC Infinity War Games.}}{{Ref/Site|Id=CFClose|URL=https://www.halowaypoint.com/en-us/news/canon-fodder-close-quarters|Site=Halo Waypoint|Page=Canon Fodder - Close Quarters|D=17|M=10|Y=2021}} | ||
The M990 is extremely effective at penetrating heavy armor, including {{Pattern|Kemu|Wraith}} tanks, and even Forerunner weapons such as the [[Z-510 focus turret]]. It is less effective against nimble aerial targets, such as the {{Pattern|D'nomlhe|Banshee}} or the [[Phaeton]], but is still easily capable of penetrating their armor. | The M990 is extremely effective at penetrating heavy armor, including {{Pattern|Kemu|Wraith}} tanks, and even Forerunner weapons such as the [[Z-510 focus turret]]. It is less effective against nimble aerial targets, such as the {{Pattern|D'nomlhe|Banshee}} or the [[Phaeton]], but is still easily capable of penetrating their armor. | ||
==Gallery== | |||
<gallery> | |||
File:H5G M820Scorpion Turret Concept.jpg|Concept art of the Scorpion's turret. | |||
</gallery> | |||
==List of appearances== | ==List of appearances== | ||
Latest revision as of 14:41, May 17, 2023
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Smoothbore tank gun[1] |
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The M990 electrothermal-chemical smoothbore cannon is a vehicle-mounted heavy weapon in the service the primary armament of the M820 Scorpion, introduced into widespread service in 2557.[1][2]
Overview[edit]
Design details[edit]
Unlike the M512 cannon mounted on the M808, or even the M310 cannons mounted on the M850 Grizzly, the M990 is an electrothermal-chemical gun, and is considered the single-biggest improvement on the M820 platform over its M808 predecessors.[2]
According with its new operating principle, the M990 breaks legacy munitions compatibility with its predecessor models and fires a much larger 150mm shell, and is capable of firing guided munitions and projected future advances in energetic propellants.[1] Some of the projected propellant advances are already in service among the fleet of select Scorpion variants operated by the Office of Naval Intelligence's security forces, which use an experimental shell and the latest energetic propellants.[3][4]
The XM820B4 Scorpion, an experimental model produced by Hannibal Weapon Systems, uses the M990 ETC gun's hull and structure as a base for the integration of a fast-discharge laser weapon system. Aesthetically, this weapon has few outward differences than the standard M990, though is functionally a directed energy weapon rather than a conventional tank gun.[5][6]
The M990 is extremely effective at penetrating heavy armor, including Kemu-pattern Wraith tanks, and even Forerunner weapons such as the Z-510 focus turret. It is less effective against nimble aerial targets, such as the D'nomlhe-pattern Banshee or the Phaeton, but is still easily capable of penetrating their armor.
Gallery[edit]
Concept art of the Scorpion's turret.
List of appearances[edit]
- Halo 5: Guardians (First appearance)
Sources[edit]
- ^ a b c d e Halo Waypoint, Scorpion (Retrieved on Apr 21, 2021) [archive]
- ^ a b c Halo Encyclopedia (2022 edition), page 140
- ^ Halo 5: Guardians, REQ Card: ONI Scorpion Description "ONI spares no expense with its "security" Scorpions, outfitting them with experimental ammunition using the latest energetic propellants. Advanced Scorpion with heavy armor and upgraded cannon."
- ^ Halo Waypoint, Canon Fodder - A Time to Give Tanks (Retrieved on Jul 14, 2021) [archive]
- ^ Halo 5: Guardians, REQ Card: Hannibal Scorpion Description "This is but one of Hannibal Weapon Systems' tank test beds fitted with the latest in vehicle-borne directed energy weapons. Advanced Scorpion with heavy armor and fast-discharge laser currently undergoing trials within UNSC Infinity War Games."
- ^ Halo Waypoint, Canon Fodder - Close Quarters (Retrieved on Oct 17, 2021) [archive]
