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When a missile crosses the signature radius of its target, it explodes. A ship's [[signature radius]] is an invisible "bubble" that most weapon systems see when trying to lock on to a ship. Generally, the bigger the ship, the bigger the signature radius. | When a missile crosses the signature radius of its target, it explodes. A ship's [[signature radius]] is an invisible "bubble" that most weapon systems see when trying to lock on to a ship. Generally, the bigger the ship, the bigger the signature radius. | ||
A missile's explosion expands in a bubble of its own. The speed at which this bubble grows is called the <span style="color:#ccffee">''explosion velocity''</span>, and the maximum size that the bubble will reach is called the <span style="color:#ccffee">''explosion radius''</span>. A missile does not so much "hit" a ship as explode near it. EVE uses a [[#Missile damage | A missile's explosion expands in a bubble of its own. The speed at which this bubble grows is called the <span style="color:#ccffee">''explosion velocity''</span>, and the maximum size that the bubble will reach is called the <span style="color:#ccffee">''explosion radius''</span>. A missile does not so much "hit" a ship as explode near it. EVE uses a [[#Missile damage formula|mathematical formula]] to compute the precise amount of damage that the explosion does to the ship. | ||
[[File:QSG_missile_terms.png|thumb|right|upright=0.8|A Missile Explodes|alt=drawing showing SR and ER]][[File:QSR_missile_hit.gif|A Missile Explodes|alt=animation of missile hitting ship]] | [[File:QSG_missile_terms.png|thumb|right|upright=0.8|A Missile Explodes|alt=drawing showing SR and ER]][[File:QSR_missile_hit.gif|A Missile Explodes|alt=animation of missile hitting ship]] | ||
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If you have been using missiles, this probably does not surprise you, and you may want more details, but since the actual damage number depends on target speed, missile speed, signature radius and so on, there is no way to give a simple summary or table of how much damage a particular kind of missile will do against a particular kind of ship. | If you have been using missiles, this probably does not surprise you, and you may want more details, but since the actual damage number depends on target speed, missile speed, signature radius and so on, there is no way to give a simple summary or table of how much damage a particular kind of missile will do against a particular kind of ship. | ||
Without going into the mathematical details (''[[#Missile damage | Without going into the mathematical details (''[[#Missile damage formula|discussed below]]''), the other factors that might come into play are these: | ||
*If you are using missiles, you want a faster explosion (''more explosion velocity'') and a smaller one (''less explosion radius'') – in other words, a short, tight explosion is more effective than a long, loose one. | *If you are using missiles, you want a faster explosion (''more explosion velocity'') and a smaller one (''less explosion radius'') – in other words, a short, tight explosion is more effective than a long, loose one. | ||
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Note that both of these are most effective if you are firing missiles at small, fast ships. They may be completely unhelpful if you are firing at very large ships. | Note that both of these are most effective if you are firing missiles at small, fast ships. They may be completely unhelpful if you are firing at very large ships. | ||
==Missile damage | ==Missile damage formula== | ||
The equation for missile damage is as follows: | The equation for missile damage is as follows: | ||
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Unlike the turret damage | Unlike the turret damage formula, missile damage takes the absolute velocity of the target into account, not the angular velocity. To create missile damage, the game computes two values. These values are compared to 1, and the smallest is chosen. That number is then multiplied by the base damage to get the amount of damage applied to the ship. | ||
=== Target values === | === Target values === | ||
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Griffin frigate has signature radius S of about 42m | Griffin frigate has signature radius S of about 42m | ||
Since signature radius of Griffin is smaller than missile's explosion radius, we are limited by the second term in the missile damage | Since signature radius of Griffin is smaller than missile's explosion radius, we are limited by the second term in the missile damage formula - S/E, which is 0.3. That means that at the best we are able to do only 30% of Heavy Missile's damage when firing at Griffin, even when Griffin is not moving at all. Also, we can notice that in this case, Griffin's speed will take effect much later than at required speed. While required speed is 27.216m/s (42 * 0.648), at this speed third term in the missile damage formula is 1, however, it still does not have any effect because second term is 0.30. We will need to solve different (and more complicated) equation to get the speed of Griffin which will lower damage further below those 30%. After calculation we see that speed of the Griffin needs to be at least 141.89m/s to have further effect on reducing damage, which is more than 5 times more than required speed of 27.216m/s. | ||
}} | }} | ||