The Art of Logistic Ships

Self Repair vs Remote Repair

Repair is vital to ensuring survival, or at least extended one’s time to live to ensure they can make as many contributions as possible before getting destroyed. Most fit their ships toward repairing themselves, but in fleet settings it can be substantially more beneficial to be remote repaired by Logistic ships. Let’s compare the two:

  • Self Repair can only repair yourself, while Remote Repair can repair anyone in the fleet (other than yourself)
  • Self Repair is often insufficient, but a variable number of remote repair units can be directed to ships that need it the most and away from those that need it the least
  • Self Repair might not be needed if you are not personally attacked, rendering it useless; however, remote repair is always needed by someone, and repair efforts can be directed accordingly
  • Effective Self Repair requires numerous modules and rigs to increase repair effectiveness and maintain cap stability; these module and rig slots could be used toward other things instead. For example, they could be used for additional resistance and buffering, thereby increasing the effectiveness of being repaired remotely, decreasing damage received, and increasing longevity in the battlefield to an extent greater than could have been accomplished by self-repair. Alternatively, they could be used to enhance the performance of the ship’s primary function (eg. combat, ewar, harvesting, etc). Most often there is a mix of the two.
  • Logistic ships themselves need to be protected, and may require additional Logistic ships to repair them if they get damaged.

Logistic Ship Chains

Logistic ships are most commonly chained together. This means that one logistic ship repairs another which repairs another and so on and so forth and the last ship in the chain repairs the intended target. In this set up, only the first logistic ship in the chain is vulnerable to destruction, as the other ships are receiving repairs. If any logistic ship in the middle of the chain gets destroyed, then its predecessor takes over by repairing its successor, thus maintaining the chain.

The problem with Logistic ship chains is that in practice only some of the ships in the chain are being attacked, so some ships are being repaired unnecessarily and repairing others unnecessarily. Furthermore, some ships might not receive sufficient repair even though the potential is there for the ships to provide the degree of repair required to stay alive. Chains are typically comprised or only two or three logistic ships, and the target ship may have multiple chains of logistic ships repairing it.

Logistic Ship Lattices and Triads

Logistic ships can also repair multiple ships at once, including other logistic ships which in turn provide reciprocal repair. Such an arrangement is called a Lattice, and has the benefit of providing the appropriate amount of repair on a ship-by-ship basis, and providing a balanced amount of repair otherwise. Logistic ship lattices frequently appear in the form of a triad, in which three Logistic ships repair each other in addition to a fourth target. In such an arrangement, each logistic ships is repaired by two other logistic ships, and the target is being repaired by all three.

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A triad of logistic ships in a balanced repair formation around a single target.

Compared to the target ship, the logistic ships are expendable. In the event of an emergency, all three logistic ships can focus their repair efforts on the target.

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A Triad of logistic ships focusing on a single target. Note that the logistic ships themselves may be under fire and in need of repair; however, in the case of an emergency, the target ship takes precedence and the logistic ships are considered relatively expendable.

In practice, each ship receives a different degree of fire, and the logistic ships can refocus their repair efforts accordingly.

logi3
With sufficient numbers of remote repair units, each ship can receive repair proportional to the damage being received and the amount in need of repair.

In large scale fleets, multiple chains, triads, or lattices in general may form to protect high value targets. It would not be uncommon for triads to support triads to provide multiple levels of safety assurance.

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A severely damaged logistic ship is being repaired by another triad of logistic ships in a balanced formation. The original triad is still focused on keeping the Titan alive.

Designing for Remote Repair

While any ship can benefit from remote repair, ships can be specially designed to make the most out of remote repair. A ship intended to be remotely repaired should have high resistances to boost its EHP and EHP repaired by Logistic ships as well as to reduce damage received in order to substantially prolong its stay in combat. Such a ship might also use buffers to withstand damage while logistic ships are dispatched to repair it, and decrease the urgency of such a response if other ships are also in need of repair.

lotek-osran-iii-g
An example of a Cruiser designed to be used with Logistic support. The 1600mm armor plates, in combination with high armor resistances, nearly doubles its EHP and severely reduces damage received, thereby making it far more resilient than a comparable Battlecruiser relying on self repair.

Logistic Ships and Capacitor Replenishment

In addition to repairing hull, armor, and shields, Logistic ships can also replenish another ship’s capacitors. There are many instances in which is is just as much if not more important than hull/armor/shield repair. Interestingly enough, energy transfer arrays (ie. remote capacitor transmitters) provide more capacitor replenishment than is consumed transferring the capacitor. In other words, there is a net gain in capacitor energy whenever a transfer occurs. For example: two logistic ships could transfer energy two each other, thereby gaining more energy than is expended in the transfer and accelerating the replenishment of both of their capacitors.