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Buffer Tank (Author: Hazri)
A buffer tank consists of 4 main parts: Large Shield Extender, Active/Passive Shield Resist Modules, Shield Rigs and a Damage Control. In the following are lists of the most useful modules in each category:

Extender gives you more shield and therefore are a great way to increase your EHP and overall tank. The small and medium variants aren't useful and you should always go for the large ones or fit resist modules instead, if you are low on powergrid. Additional you should never ever fit more than 2-3 extenders because of the massive signature radius increase (higher signature = you get a lot more damage). As a good rule 1 extender is a good start and a 2nd one if you feel light on tank.
Name Price Shield HP Signature Powergrid CPU Information
Large Shield Extender II Large Shield Extender II 700k 2625 25m 165 46 recommended
Large F-S9 Regolith Shield Induction Large F-S9 Regolith Shield Induction 500k 2250 21m 150 34 useful when low on powergrid or cpu
Republic Fleet Large Shield Extender Republic Fleet Large Shield Extender 30-40M 2625 19m 165 46 luxury variant, lowest signature drawback

Active hardeners are the backbone of every omni buffer tank. They offer the highest resists but need a little cap to run. As a good rule you should add at least 1-2 invulnerability fields and 1 photon scattering field. This highly depends on the ship aswell, but it works in a lot of cases.
Name Price EM Therm Kin Exp CPU Cap usage Information
Invulnerability Field II Invulnerability Field II 1,1M 30% 30% 30% 30% 44 3,2GJ/s recommended
Caldari Navy Invulnerability Field Caldari Navy Invulnerability Field
Dread Guristas Invulnerability Field
460M
460M
37,5% 37,5% 37,5% 37,5% 27 3,33GJ/s awesome but extremely expensive, pure luxury
Photon Scattering Field II Photon Scattering Field II 1M 55% 0% 0% 0% 44 2,0GJ/s recommended
Caldari Navy Photon Scattering Field Caldari Navy Photon Scattering Field
Dread Guristas Photon Scattering Field
30-35M
30-35M
55% 0% 0% 0% 30 1,67GJ/s expensive, good if low on cpu
Pith B-Type Photon Scattering Field Pith B-Type Photon Scattering Field 100M 59,5% 0% 0% 0% 36 1,67GJ/s great but very expensive
Heat Dissipation Field II Heat Dissipation Field II 1M 0% 55% 0% 0% 44 2,0GJ/s recommended
Caldari Navy Heat Dissipation Field Dread Guristas Heat Dissipation Field 10-15M 0% 55% 0% 0% 36 1,67GJ/s bit more expensive, good if low on cpu
Pith B-Type Heat Dissipation Field Pith B-Type Heat Dissipation Field 25-30M 0% 59,5% 0% 0% 36 1,67GJ/s expensive but higher resists
Ballistic Deflection Field II Ballistic Deflection Field II 1,1M 0% 0% 55% 0% 44 2,0GJ/s recommended
Dread Guristas Ballistic Deflection Field Dread Guristas Ballistic Deflection Field 20-25M 0% 0% 55% 0% 36 1,67GJ/s bit expensive, good if low on cpu
Gist A-Type Ballistic Deflection Field Gist A-Type Ballistic Deflection Field
Pith B-Type Ballistic Deflection Field
40M
40-45M
0% 0% 59,5% 0% 36 1,5GJ/s
1,67GJ/s
expensive but good resists
Explosion Dampening Field II Explosion Dampening Field II 1,2M 0% 0% 0% 55% 44 2,0GJ/s recommended
Dread Guristas Explosion Dampening Field Dread Guristas Explosion Dampening Field 8-10M 0% 0% 0% 55% 36 1,67GJ/s bit expensive, good if low on cpu
Pith B-Type Explosion Dampening Field Pith B-Type Explosion Dampening Field 25-30M 0% 0% 0% 59,5% 36 1,67GJ/s expensive but good resists

Passive hardeners don't need capacitor and therefore can't turn of when neuted. They are also a little less demanding on CPU, which can be a good thing. The downside is, they don't offer as much resists as active hardener and there is no module which improves all resists at the same time. Additional there are several skills which will increase the resists (EM/Thermal/Kinetic/Explosive Shield Compensation). If you plan to use passive hardeners it is a very good idea to train up the respective skills at least to level 4.
Name Price EM Therm Kin Exp CPU Information
Magnetic Scattering Amplifier II Magnetic Scattering Amplifier II 1,1M 37,5% 0% 0% 0% 30 recommended
Domination Magnetic Scattering Amplifier Domination Magnetic Scattering Amplifier 20-25M 37,5% 0% 0% 0% 17 bit expensive, good if low on cpu
Pithum C-Type Magnetic Scattering Amplifier Pithum C-Type Magnetic Scattering Amplifier 60-65M 41,3% 0% 0% 0% 30 expensive but better resists
Heat Dissipation Amplifier II Heat Dissipation Amplifier II 700k 0% 37,5% 0% 0% 30 recommended
Domination Heat Dissipation Amplifier Domination Heat Dissipation Amplifier 20-25M 0% 37,5% 0% 0% 17 bit expensive, good if low on cpu
Pithum C-Type Heat Dissipation Amplifier Pithum C-Type Heat Dissipation Amplifier 25-30M 0% 41,3% 0% 0% 30 expensive but better resists
Kinetic Deflection Amplifier II Kinetic Deflection Amplifier II 600k 0% 0% 37,5% 0% 30 recommended
Domination Kinetic Deflection Amplifier Domination Kinetic Deflection Amplifier 10-20M 0% 0% 37,5% 0% 17 bit expensive, good if low on cpu
Pithum C-Type Kinetic Deflection Amplifier Pithum C-Type Kinetic Deflection Amplifier 15-20M 0% 0% 41,3% 0% 30 expensive but better resists
Explosion Dampening Amplifier II Explosion Dampening Amplifier II 500k 0% 0% 0% 37,5% 30 recommended
Domination Explosion Dampening Amplifier Domination Explosion Dampening Amplifier 10-15M 0% 0% 0% 37,5% 17 bit expensive, good if low on cpu
Pithum C-Type Explosion Dampening Amplifier Pithum C-Type Explosion Dampening Amplifier 5-10M 0% 0% 0% 41,3% 30 bit expensive but better resists

Shield rigs can substantial improve a buffer tank and are pretty low on calibration need. Nevertheless you should always keep an eye on the drawback, which will blow up your ship signature quite a bit. As a good rule you shouldn't add more than 1-2 shield rigs and fill the rest of the slots with damage rigs. If your ship of choice has a pretty low number of mid-slots, you may even need to add the full number of shield rigs to be able to get a decent buffer. You should as well train the skill "Shield Rigging" to level 4 at least. That not only allows the use of T2 rigs, but will decrease the drawback a lot, too.
Name Price Bonus Drawback Calibration Information
Medium Core Defence Field Extender I Medium Core Defence Field Extender I
Large Core Defence Field Extender I
3M
90M
15% Shield HP 10% Signature 50 recommended
Medium Core Defence Field Extender II Medium Core Defence Field Extender II
Large Core Defence Field Extender II
14M
300M
20% Shield HP 10% Signature 75 expensive but higher shield bonus
Medium Anti-EM Screen Reinforcer I Medium Anti-EM Screen Reinforcer I
Large Anti-EM Screen Reinforcer I
250k
650k
30% EM 10% Signature 50 recommended
Medium Anti-EM Screen Reinforcer II Medium Anti-EM Screen Reinforcer II
Large Anti-EM Screen Reinforcer II
20M
75M
35% EM 10% Signature 75 expensive but better resists
Medium Anti-Thermal Screen Reinforcer I Medium Anti-Thermal Screen Reinforcer I
Large Anti-Thermal Screen Reinforcer I
150k
33M
30% Thermal 10% Signature 50 recommended
Medium Anti-Thermal Screen Reinforcer II Medium Anti-Thermal Screen Reinforcer II
Large Anti-Thermal Screen Reinforcer II
800k
79M
35% Thermal 10% Signature 75 expensive but better resists
Medium Anti-Kinetic Screen Reinforcer I Medium Anti-Kinetic Screen Reinforcer I
Large Anti-Kinetic Screen Reinforcer I
150k
33M
30% Kinetic 10% Signature 50 recommended
Medium Anti-Kinetic Screen Reinforcer II Medium Anti-Kinetic Screen Reinforcer II
Large Anti-Kinetic Screen Reinforcer II
400k
77M
35% Kinetic 10% Signature 75 expensive but better resists
Medium Anti-Explosive Screen Reinforcer I Medium Anti-Explosive Screen Reinforcer I
Large Anti-Explosive Screen Reinforcer I
200k
25M
30% Explosive 10% Signature 50 recommended
Medium Anti-Explosive Screen Reinforcer II Medium Anti-Explosive Screen Reinforcer II
Large Anti-Explosive Screen Reinforcer II
350k
60M
35% Explosive 10% Signature 75 expensive but better resists

While not an essential part of a buffer tank, Power Diagnostic Systems (PDS) still offer a little bonus to shield capacity. The modules are for low slots and you can use them if you have free slots. Remember though, you shouldn't trade damage mods by all means! Only use PDS is you really have the spare slots (for example: Basilisk, Raven). Additional they improve several other parts of a ship as well, including powergrid, capacitor capacity and capacitor recharge rate.
Name Price Shield HP Powergrid Cap Capactiy Cap Recharge CPU Information
Power Diagnostic System II Power Diagnostic System II 700k 5% 5% 5% 8,5% 20 recommended
Caldari Navy Power Diagnostic System Caldari Navy Power Diagnostic System 40M 6% 6,5% 5% 8,5% 25 expensive but slightly more shild bonus

Last but not least, the Damage Control. It needs a low slot and can be a real life safer. It's the only module that improves hull resists and only one can be active at the same time. Additional it improves Shield and Armor resists as well. You should have one built in at all times, especially on battleships which have a high number of armor and structure points. If you can't use the T2 variant yet, I really recommend you start training for it as soon as possible.
Name Price Hull Resists Armor Resists Shield Resists Cap usage CPU Information
Damage Control II Damage Control II 600k 60% (all) 15% (all) 12,5% (all) 0,033 GJ/s 25 highly recommended

That's all modules you will need to build a decent omni buffer tank. Use them to get at least 50-100k EHP (depending on ship) and 70% in all shield resists. A good starter rule is to begin with 1x Large Shield Extender, 2x Invulnerability Field II, 1x Photon Scattering Field II and 1x Damage Control II. That works very well for many ships. There are of course exceptions to this rule, but it gives you a good place to start.

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Copyright ©2011 Andreas Gruhn (http://www.NexSoft.de).
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