Akashi's Improvement Arsenal

This system is made for Akashi and Akashi Kai. Now if you have her as your secretary ship, you will be able to use Akashi's Improvement Arsenal.

By using Improvement Material, development material and resources, equipment can be improved and upgraded into a better equipment. Equipment that can be improved depends on the day of the week and the ship in the second slot.

How to Enter

 * 1) Set Akashi or Akashi Kai as your secretary (first ship of the first fleet).
 * 2) At the home screen, hover your mouse cursor over the factory icon (do not click).
 * 3) The Improvement Arsenal Icon will appear next to it as shown.Kaishu koushou.png
 * 4) Move your cursor to that icon and click.

How to Use

 * To use this new factory, you need Improvement Materials [[file:Improvement Materials.png|20px]]. They can be obtained through the following methods:
 * Certain quests reward Improvement Materials.
 * Medals can be exchanged for 4 Improvement Materials per medal.
 * Present Box or Hishimochi obtainable during special occasion can be exchanged for 1 Improvement Material each together with a few Development Material.
 * The in-game cash shop sells them in a package of 10 Improvement Materials for 700 DMM points.
 * The 2nd ship of the fleet can aid Akashi and influence the possible improvement and upgrade options.
 * There is a chance to fail when doing improvements and upgrades
 * If the improvement level is low, then you will have a higher chance of success, and vice versa.
 * Akashi Kai has a higher success rate than Akashi herself according to official twitter.
 * On failure, resources, Development Materials, Improvement Materials and any extra equipment used will disappear. Equipment being improved or upgraded is left unchanged.
 * There is a slider for guaranteed success that increases the required DevMats and ImproveMats.
 * Equipment that has been improved will have a ★ beside them. Improvement ranges from ★+1 to ★+10. ★+10 appears as ★max.
 * Starting from ★+6. you will have to spend a certain amount of equipment that have the same type (name) in order to gain ★+7 up to ★+10.
 * Equipment to be spent must be unlocked and unimproved.
 * Some equipment require different equipment. 41cm Twin Gun Mount requires spending equipment starting on the first improvement.
 * As equipment is spent even on failure, using the guaranteed success slider for difficult to obtain equipment may be considered.
 * There's no  visible stat difference between unimproved and improved equipment.
 * Improvements on equipment have been shown to have bonus to firepower, torpedo, accuracy and anti-submarine damage.
 * The effect of improvement for most equipment follow the pattern of (multiplier×$$\sqrt{\bigstar}$$) according to Japanese testers.  Multipliers are listed below (AA and ASW attack's multipliers are after equipment modifier.)
 * Multiplier for Small/Medium Main Gun, Secondary Gun, High-angle Gun, AAFD, Searchlight(To Be Confirmed), and AP Shell(To Be Confirmed) for Shelling are 1.
 * Multiplier for Machine Gun for Day Battle Shelling are 1.
 * Multiplier for Large Main Gun for Day Battle Shelling are 1.5.
 * Multiplier for Large Main Gun for Night Battle Shelling are 1.
 * Multiplier for Sonar/Depth Charge for Shelling are 0.75.
 * Multiplier for Torpedo for Day Battle Torpedo Attack are 1.2.
 * Multiplier for Torpedo for Night Battle Torpedo Attack are 1.
 * Multiplier for Machine Gun for Day Battle Torpedo Attack are 1.2(To Be Confirmed).
 * Multiplier for Sonar/Depth Charge for ASW Attack are 1(To Be Confirmed).
 * Multiplier for Machine Gun for AA Attack are 4.2(To Be Confirmed).
 * Multiplier for High-angle Gun, AAFD for AA attack are 2.8(To Be Confirmed).
 * Multiplier for AA Radar for AA attack are 2.1(To Be Confirmed).
 * Other multipliers, especially most of those involve continuous value like accuracy, evasion and Line of Sight, but also all values for surface radar and most value for AA radar, as well as torpedo and AA attack's bonus value for various other equipment are still yet to be confirmed. However it have been confirmed that Surface Radad do not increase firepower, and Machine Gun do not increase Night Battle attack power.
 * Radars are known to add LOS and Accuracy, but the multiplier is pending confirmation
 * Accuracy multiplers for various equipments like Guns and AP Shell and Torpedo were once believed to be 1, then 1.414, then 2, then 1.5 or 1.58($$\sqrt{2.5}$$), but there are still no definitive conclusion on which value the multipler should be in current stage. Effect on red face attack seem to be lower, and preliminary test suggest Night Battle accuracy might not be improved.
 * Accuracy multiplers might have a upper limit of 10%, or might be there are limit on other aspects that relate to type or nunber of equipments.
 * Accuracy multiplers for AA Radar is possible to be 1.
 * Equipment Improvement effects are pre-cap modifiers.
 * These effects are rounded down to integer after summation of improvement values from all equipments.
 * For instance, a ★+4 Secondary Gun give you 1×$$\sqrt{4}$$=2 according to the formula, while a ★+8 Secondary Gun also give you 1×$$\sqrt{8}$$=2.828… according to formula, but after being rounded down it is still only giving 2 additional firepower.
 * However, bonus from equipments can be stacked before being rounded down. for instance you have a ★+8 Secondary Gun which give you 2.828… additional firepower, and on the other hand you have a ★+8 Large Main Gun which give a formula value of 1.5×$$\sqrt{8}$$=4.242… additional firepower during Day Battle, using them together on the same ship would give you an additional of 7 firepower (7.071…) instead of 6 as when they are added separately.
 * If you only use one improved equipment on a ship, here are the improved bonus values:
 * For multipler = 1.5:
 * ★+1: +1 bonus
 * ★+2~4: +2 bonus
 * ★+5~7: +3 bonus
 * ★+8~10: +4 bonus
 * For multipler = 1.2:
 * ★+1~2: +1 bonus
 * ★+3~6: +2 bonus
 * ★+7~10: +3 bonus
 * For multipler = 1:
 * ★+1~3: +1 bonus
 * ★+4~8: +2 bonus
 * ★+9~10: +3 bonus
 * For Multipler = 0.75:
 * ★+2~7: +1 bonus
 * ★+8~10: +2 bonus
 * Sonar give bonus to evasion against torpedo when improved after 26th June 2015.
 * It is believed that Improvement in Firepower aspect can't help Shelling Support Expedition, however the situation for Torpedo Support expedition is not tested. The Improvement value given by accuracy is not tested either.
 * According to an official Twitter post
 * RADARs give extra accuracy, AA, LoS after improvement.
 * If the equipment reaches the maximum improvement level (★max), it may be possible to upgrade to a stronger variant. Any lock on the equipment must be removed, and an upgrade must exist for this to be possible. Be aware that the improvement level will be reset if you do this, and a ★+10 equipment could be stronger than an unimproved upgrade.
 * Equipment in particular to take note of before upgrading are: Type 91 AP Shell (because Type 1 AP Shell upgrades are extremely expensive; a +9* T91 AP shell is of similar power to a T1 +4* AP shell and costs a lot less); 35.6cm Twin Gun (because the Prototype 35.6cm Triple Gun it upgrades to cannot be upgraded further); Searchlight (because the Type 96 150cm Searchlight it upgrades to cannot be equipped on anything but Battleships). Do not make these upgrades without careful consideration.
 * If the new equipment after upgrading is something you can develop from the conventional development, the improvement level will be automatically reset to ★+3.
 * This has the highest chance of failure, so using the guaranteed success slider can be considered.
 * Equipment to be upgraded must not be locked.

Possible Improvements
Equipment that can be improved depends on the day of the week and the ship in the second slot of the first fleet. The improvement list changes at 0:00 JST.

When the 2nd Ship varies by day, the ship's Initial is used; '✓ ' usually denotes that either may be used.

Note

 * 10cm Twin High-angle Gun + Anti-Aircraft Fire Director uses 10cm Twin High-angle Gun for improvement past ★+6.
 * 38cm Twin Gun uses 35.6cm Twin Gun for improvement and use 41cm Twin Gun for upgrading.
 * 38cm Twin Gun Kai uses 41cm Twin Gun for improvement.
 * 381mm/50 Triple Gun Mount uses 35.6cm Twin Gun for improvement and 25mm Twin Autocannon for upgrading.
 * 381mm/50 Triple Gun Mount Kai uses 41cm Twin Gun for improvement.
 * Prototype 46cm Twin Gun uses 41cm Twin Gun for improvement and upgrading.
 * Prototype 51cm Twin Cannon uses 46cm Triple Gun Mount for improvement
 * 90mm Single High-angle Gun uses 10cm Twin High-angle gun for improvement.
 * OTO 152mm Triple Rapid Fire Gun Mount uses 15.5cm Triple Gun (Main) for improvement
 * Type 1 AP Shell uses Type 91 AP Shell for improvement before ★+6. Consumes itself past ★+6.
 * Type 91 Anti-Aircraft Fire Director uses 12.7cm Twin High-angle Gun for improvement past ★+6 and use 10cm Twin High-angle Gun for upgrading.
 * Type 94 Anti-Aircraft Fire Director
 * For Improvement consumes:
 * 10cm Twin High-angle Gun with Akizuki or Fubuki Kai-2
 * 12.7cm Twin High-angle Gun with Maya Kai-2
 * For upgrading consumes:
 * 10cm Twin High-angle Gun to make 10cm Twin High-angle Gun + Anti-Aircraft Fire Director with Akizuki or Fubuki Kai-2
 * 12.7cm Twin High-angle Mount to make 12.7cm Twin High-angle Mount + Anti-Aircraft Fire Director with Maya Kai-2
 * Type 94 Anti-Aircraft Fire Director can be improved with Maya Kai-2 using 12.7cm Twin High-angle Gun Mount first, and later upgraded with Akizuki or Fubuki Kai-2 into 10cm Twin High-angle Gun Mount + Anti-Aircraft Fire Director.
 * 61cm Triple Torpedo Mount requires Fubuki or Fubuki Kai as 2nd ship, Fubuki Kai-2 not valid.
 * 61cm Triple (Oxygen) Torpedo Mount uses 61cm Triple Torpedo Mount for improvement past ★+6 and use 61cm Quad Torpedo Mount for upgrading.
 * 15.2cm Twin Gun Mount consumes itself for improvement past ★+6 and use Type 22 Surface Radar for upgrading.
 * 15.2cm Twin Gun Mount Kai uses 15.2cm Twin Gun Mount for improvement.
 * Searchlight consumes itself for improvement past ★+6 and use Skilled Lookouts for upgrading.
 * Type 96 150cm Searchlight consumes Searchlight for improvement.
 * Type 13 Air Radar uses Type 21 Air Radar for upgrading.
 * Type 13 Air Radar Kai uses Type 13 Air Radar for improvement.
 * Type 21 Air Radar Kai uses Type 21 Air Radar for improvement.
 * Type 22 Surface Radar Kai 4 uses Type 22 Surface Radar for improvement before ★+6.
 * Type 32 Surface Radar uses Type 22 Surface Radar for improvement.
 * Type 32 Surface Radar Kai uses Type 22 Surface Radar for improvement.

Trivia

 * Akashi is animated on the Improvement Arsenal screen, blinking her eyes and occasionally looking towards the options on the left.
 * She also has two separate sprites for her basic and Kai forms, reflecting her headband and heftier rigging. See here.Akashi Improvement Arsenal page animation.gif