Jump drives: Difference between revisions

'''Jump Drives''' are a means of interstellar travel, and the main alternative to the standard network of stargates. Ships with built-in jump drives can use their drives to instantly travel to a friendly '''Cynosural Field''' or Pharolux Cyno Beacon in another star system, within a limited range and at the cost of consuming Isotopes as fuel.

* [[Capital_Ship#Dreadnoughts|Dreadnoughts]]

The fuel cost for each jump does not depend on the number of stargate jumps to the destination. It depends on the straight-line distance between the two systems in space, measured in light-years. Each jump drive has a maximum jump range, and consumes a certain amount of fuel per light-year. These qualities are modified by skills:

Jump freighters also have their required fuel reduced by the [[Skills:Spaceship_Command#Jump_Freighters|skill required to fly them]].  

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Activating a jump drive has similar constraints to activating a warp drive: jump drives cannot be activated if the ship is either inside a [[Tackling#Warp_disruption_fields|warp interdiction bubble]] (from an [[Interdictor]] or [[Heavy Interdiction Cruiser]], or if the ship has been [[Tackling#Fitting for tackling|warp disrupted]] below a Warp Core Strength of 0. (However, a jump drive can be activated regardless of the jumping alignment.)

{\color{red} ( 1 - JDE_1) \times ( 1 - ( JDE_2 \times 0.869 )) \times ( 1 - ( JDE_3 \times 0.571 )) \times ( 1 - ( JDE_4 \times 0.283 ))} </math>

{| class="wikitable"

| JFC || {{sk|Jump Fuel Conservation|icon=yes}} level || 0-5 ||  

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| JDE''x'' || [http://games.chruker.dk/eve_online/inventory.php?group_id=1299 Jump Drive Economizer] module || 0.04, 0.07, 0.1 || Jump Drive Economizer fuel bonus. [[Stacking_penalties|Stacking penalized]], ordered with highest bonus

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''Cynosure'' (pronounced like "sigh no sure") is a little-used word outside of EVE. It means a guide, or a person or thing that draws attention towards itself. It originates in the ancient Greek name for the North Star, making it a very appropriate term for the cynosural fields of New Eden.

Cynosural Fields come in three varieties: '''normal''' or so-called '''"hard" cynos''', '''covert cynos''', and '''industrial cynos'''. The three types differ in important ways in their equipment requirements, in their fuel use, and in the ships which they can transport.

The Cynosural Field Generator module requires the skill {{sk|Cynosural Field Theory|icon=yes}} at level one to be fitted. Its base activation time is ten minutes and it has a base consumption of 500 Liquid Ozone per cycle. As the Liquid Ozone consumption is reduced by 10% per level of Cynosural Field Theory, the maximum consumption is actually 450 Liquid Ozone per cycle, and the minimum consumption is thus 250.

If you want to light a cyno you have to be in a fleet (only fleet members can jump to that cyno) and slower than 500 m/s. After you light the cyno your nominal speed becomes zero but you continue to drift and can also be bumped, but the cynosural field stays at the position, where you lit it. Further, you cannot dock in a station or structure and cannot eject, but you can self destruct. Indeed you can light a cyno after you initiated the self destruct sequence. This is used as a trick for extra safe traveling. The cyno needs several seconds until it appears on the universe map. If you light the cyno shortly before you self destruct and immediately jump to it, you can minimize the risk of being caught. But, be aware that if you jump to a cyno in the same moment as the cyno ship dies, you still jump but you land at the destination system's star, not at the former spot of the cyno.

Covert Cynosural Fields are a special variant of the "normal" Cynosural Fields discussed above. In a context in which either type might be mentioned, a "normal" cyno is often called a "hard cyno".

The Covert Cynosural Field Generator requires {{sk|Cynosural Field Theory|icon=yes}} at level 5. Its activation time and fuel consumption is only a tenth of the usual cyno. As Cynosural Field Theory has to be at five, it always only needs 25 Liquid Ozone which greatly reduces the cargo space needed. Otherwise, the module still immobilizes the ship generating the field and can only be used if it is slower than 500 m/s. The bonuses of [[Cruiser#Recon Ships|Force Recon Cruisers]] and Black Ops Battleships apply to covert cyno as well, which means they are pinned down for only 30 seconds.

=== Industrial Cynosural Fields ===

* the [[Venture]], which has a role bonus cutting the industrial cyno's Liquid Ozone cost in half

Industrial Cynos are sometimes used for their visual effect during "cyno vigils" to remember eve online players who died in real life. If other pilots are aware of such an occasion, they usually don't attack those vigils out of piety.

A Jump Bridge is a way for a [[Titan]] or [[Black Ops Battleship]] to launch its allies, who cannot use jump drives, across space into battle.

A (Covert) Jump Portal Generator allows the user to create a bridge to another system. The Jump Portal Generator can only be fitted on a Titan, and the Covert version only to a Black Ops Battleship. They are high-slot passive modules which enable the bridge function of the ship. The module will visibly activate and cycle while the bridge is active, but cannot be manually activated.

Using the module requires {{sk|Jump Portal Generation|icon=yes}} skill at level one.  

As of the October 2014 Phoebe release, traveling using a Jump Drive, Jump Portal, Jump Bridge, Covert Jump Drive or Covert Jump Portal causes fatigue to capsuleers and a delay is required between successive jumps. This delay is determined by the jump fatigue mechanic. Jump fatigue is presented as a time value, indicating the time it will take to decay to zero, and can accumulate to a maximum of 5 hours. It decays in real time, whether logged in or not. Jump fatigue is recalculated after every jump.

[[file:JumpFatigue.png]]

Two groups of ships have special considerations:

The following ships gain a 90% reduction to effective distance traveled when calculating fatigue:

== External links ==

* [https://support.eveonline.com/hc/en-us/articles/212726865-Jump-Activation-Cooldown-and-Jump-Fatigue Jump Activation and Jump Fatigue]  (EVE Help Center)

[[Category:Ships]]

[[Category:Game mechanics]]