Editing M-Drive

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The [[M-Drive]], or ''[[Maneuver Drive]]'', a {{TL|9}}+ [[Gravity Control Technology|gravity control]] based technology used as the standard [[Maneuver Drive]] in [[Starships]]. 
* It is also known as a [[Thruster Plate]], and also (somewhat inaccurately) as a [[Reactionless Drive]]  or [[Reactionless Thruster]], or by other terms, due to their design and their apparent mode of operation. 
* The term ''M-Drive'' refers specifically to the [[Thruster Plate]] [[Maneuver Drive]] system that reacts against the curvature of [[spacetime]] (i.e. gravity) that is in use at standard TL throughout [[Charted Space]], and should not be confused with the generic term "''[[Maneuver Drive]]''" that refers to [[Impulse Drive]]s and other [[Relativistic Drive]]s in general.  
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Please refer to the following [[AAB]] [[Library Data]] for more information: <br>
'''[[Starship]]:''' 
{{:Referral-Tree-Speed-of-Travel}}
{{:Referral-Tree-Impulse-Drives}}
{{:Referral-Tree-Interstellar-Drives}}
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== Description ([[Specifications]]) ==
The fourth significant development came from the search for a [[starship]] maneuver drive that did not lose efficiency when away from a strong gravity well. [[Gravity control technology|Artificial gravity]] and [[Nuclear damper|damper]] technology led to yet another sub-atomic force-based technology. This new, artificially generated force pushes against a vessel's "thrust plates" themselves, which make true reactionless thrusters a reality for starship sized vessels. {{Page cite|name=Referee's Manual|page=56}}

The M-Drive use their own gravity field itself for propulsion, by "grabbing on" to the curvature of space and running along it much like an ant on the slope of a sugar-bowl. The M-Drive uses the stellar system itself as their reaction mass. {{Page cite|name=Starships|version=Marc Miller's Traveller|page=71|citeName=S71}}

Unlike the ant in the earlier example, however, the slope of the bowl has a different effect on the gravitic-drive ships. They depend upon the slope for propulsion. Beyond a certain point, quantum-gravitic effects drastically reduce the efficiency of a gravitic drive ship by a factor of a hundred or more, and thus they cannot maneuver effectively in deep space. {{Page cite|citeName=S71}} 

Thruster plates work normally until the curvature of space reaches a threshold. Below that threshold, quantum-gravitic effects drastically cut the effectiveness, by a factor of a hundred or more. That cutoff level turns out to be around 1,000 Diameters (9.3 AU for the sun. Red Dwarfs can have limits as small as 1 AU, and Blue Giants can have limits as large as 30 AU). Thus Thruster plate equipped ships can't maneuver effectively in deep space. Ships intended to routinely operate out beyond the cutoff are generally designed with some form of auxiliary propulsion ([[Fusion Drive]]s or [[HEPlaR]] are the most popular).{{Page cite|name=Fire, Fusion & Steel|page=65}}

== History & Background ([[Dossier]]) ==
The theoretical underpinnings of M-Drives involve the strength of gravitational fields from [[star]]s and [[world]]s. The practical result is that In-System Drives operate within specific distances of [[star]]s and [[world]]s, and are essentially unusable beyond those distances. {{Page cite|name=T5 Core Rules|page=323}}

Power for the drives is provided by the ship's [[power plant]]. [[Technology level]] requirements for maneuver drives are imposed to cover the [[Gravity control technology|grav plates]] integral to most ship decks, and which allow high-G maneuvers while interior G-fields remain normal.

== References & Contributors ([[Sources]]) ==
{{Metadata}}
{{Intermediate}}
{{Sources
|S1= {{Ludography cite|name= Referee's Manual|page=56}} 
|S2= {{Ludography cite|name= Fire, Fusion, & Steel|page=72-73}}
|S3= {{Ludography cite|name= Starships|version=Marc Miller's Traveller|page=71}}
|S4= {{Ludography cite|name= Fire, Fusion & Steel|page=65}}
|S5= {{Ludography cite|name= T5 Core Rules|page=323-327}}
|S6= [[Traveller Wiki Editorial Team]]
|S7= Author & Contributor: Lord (Marquis) and Master of Sophontology [[User:Maksim-Smelchak|Maksim-Smelchak]] of the [[Ministry of Science]] 
}}


[[Category: Ship Equipment]]
{{LE|Propulsion|}}