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=Introduction=
 
This article aims to provide a rough guide to help you decide on what to spend screws on.
 
Because most improvement bonuses are "square-rooted", the first upgrade provides the largest relative gain per screw, therefore it is critical to get relevant important equipment to {{Star}}'''+1''' before working on others.
 
''Please refer to:
 
*''[[Improvement]] for more details on the stat bonuses,
 
*''[https://akashi-list.me/ Akashi-List] for the costs involved.
 
  
===The Breakpoint Myth===
 
Breakpoints refer to points where upgrade bonuses reach whole numbers. These points are stressed because of the way the game rounds down the results of most formulas. The misconception is that a 1.99 bonus is just as good as a 1.00 bonus because of rounding. While there is a slight grain of truth to the myth, things get a little complex in practice. Due to how many multipliers and other bonuses are involved, trying to hit equipment upgrade breakpoints doesn't affect very much in the grand scheme of things.
 
 
The most important thing to do is to upgrade your equipment to certain critical points:
 
* {{Star}}'''+1''' : Provides the biggest power increase (square-rooted only).
 
* {{Star}}'''+6''' : The point when failures start to kick in and costs take a jump.
 
* {{MaxStar}} : The final step to maximize upgrade bonuses.
 
 
=Screw Guaranteeing/Saving=
 
In most cases, it is statistically cheaper to either toggle or not the "guaranteed improvement".
 
 
Reminder :
 
{|class="wikitable" style="text-align:center" style="margin:auto"
 
!Modification Level
 
! 1★!! 2★!! 3★!! 4★!! 5★!! 6★!! 7★!! 8★!! 9★!! Max★!! Upgrade
 
|-
 
!Akashi
 
| 100% || 100% || 100% || 100% || 95% || 90% || 80% || 77% || 72% || 60% || 50%
 
|-
 
!Akashi Kai
 
| 100% || 100% || 100% || 100% || 100% || 95% || 90% || 82% || 77% || 67% || 62%
 
|}
 
 
Average screw cost when not guaranteed, assuming Akashi is Kai and not counting any equipment cost:
 
 
[[File:Average costs.png|750px|center]]
 
 
As expected, when the guaranteed cost is too high, not guaranteeing the upgrade is on average cheaper screw-wise, but this is not counting any potential equipment that may be lost and so may imply a higher screw cost.
 
 
Guaranteeing worthiness per base upgrade screw cost can then be defined as followed:
 
<tabber>
 
|-|General rules=
 
When upgrading any equipment, Devmats and Screw are consumed, and eventually one or several equipment and consumables.
 
*Since obtaining Devmats is not an issue, their cost is simply ignored.
 
*Since failing an upgrade does not consume any consumables, they are ignored.
 
*For equipment consumed :
 
**If they are craftable or relatively easy to obtain, their cost is negligible in front of any screw cost.
 
**If the equipment consumed is a very rare one, then guaranteeing the upgrade should be evident.
 
**If the equipment consumed is itself made via Akashi's upgrades, '''then its total screw cost must be added to the base screw costs used in later examples.
 
|-|0=
 
{|class="wikitable"
 
!guaranteed cost
 
!1st time guaranteeing is worth it (in {{Star}})
 
|-
 
| 0|| 6th {{Star}}
 
|-
 
| 1+|| Never
 
|}
 
 
|-|1=
 
{|class="wikitable"
 
!guaranteed cost
 
!1st time guaranteeing is worth it (in {{Star}})
 
|-
 
| 1|| 6th {{Star}}
 
|-
 
| 2+|| Never
 
|}
 
 
|-|2=
 
{|class="wikitable"
 
!guaranteed cost
 
!1st time guaranteeing is worth it (in {{Star}})
 
|-
 
| 2|| 6th {{Star}}
 
|-
 
| 3|| {{MaxStar}}
 
|-
 
| 4+|| Never
 
|}
 
 
|-|3=
 
{|class="wikitable"
 
!guaranteed cost
 
!1st time guaranteeing is worth it (in {{Star}})
 
|-
 
| 3|| 6th {{Star}}
 
|-
 
| 4|| 8th {{Star}}
 
|-
 
| 5+|| Never
 
|}
 
 
|-|4=
 
{|class="wikitable"
 
!guaranteed cost
 
!1st time guaranteeing is worth it (in {{Star}})
 
|-
 
| 4|| 6th {{Star}}
 
|-
 
| 5|| 8th {{Star}}
 
|-
 
| 6|| {{MaxStar}}
 
|-
 
| 7+|| Never
 
|}
 
 
|-|5=
 
{|class="wikitable"
 
!guaranteed cost
 
!1st time guaranteeing is worth it (in {{Star}})
 
|-
 
| 5|| 6th {{Star}}
 
|-
 
| 6|| 7th {{Star}}
 
|-
 
| 7|| 9th {{Star}}
 
|-
 
| 8|| {{MaxStar}}
 
|-
 
| 9+|| Never
 
|}
 
 
|-|6=
 
{|class="wikitable"
 
!guaranteed cost
 
!1st time guaranteeing is worth it (in {{Star}})
 
|-
 
| 6|| 6th {{Star}}
 
|-
 
| 7|| 7th {{Star}}
 
|-
 
| 8|| 9th {{Star}}
 
|-
 
| 9|| {{MaxStar}}
 
|-
 
| 10+|| Never
 
|}
 
 
|-|7=
 
{|class="wikitable"
 
!guaranteed cost
 
!1st time guaranteeing is worth it (in {{Star}})
 
|-
 
| 7|| 6th {{Star}}
 
|-
 
| 8|| 7th {{Star}}
 
|-
 
| 9|| 8th {{Star}}
 
|-
 
| 10|| 9th {{Star}}
 
|-
 
| 11|| {{MaxStar}}
 
|-
 
| 12+|| Never
 
|}
 
 
|-|8=
 
{|class="wikitable"
 
!guaranteed cost
 
!1st time guaranteeing is worth it (in {{Star}})
 
|-
 
| 8|| 6th {{Star}}
 
|-
 
| 9|| 7th {{Star}}
 
|-
 
| 10|| 8th {{Star}}
 
|-
 
| 11|| 9th {{Star}}
 
|-
 
| 12|| {{MaxStar}}
 
|-
 
| 13+|| Never
 
|}
 
 
|-|9=
 
{|class="wikitable"
 
!guaranteed cost
 
!1st time guaranteeing is worth it (in {{Star}})
 
|-
 
| 9|| 6th {{Star}}
 
|-
 
| 10|| 6th {{Star}}
 
|-
 
| 11|| 8th {{Star}}
 
|-
 
| 12|| 9th {{Star}}
 
|-
 
| 13|| 9th {{Star}}
 
|-
 
| 14|| {{MaxStar}}
 
|-
 
| 15+|| Never
 
|}
 
 
|-|10=
 
{|class="wikitable"
 
!guaranteed cost
 
!1st time guaranteeing is worth it (in {{Star}})
 
|-
 
| 10|| 6th {{Star}}
 
|-
 
| 11|| 6th {{Star}}
 
|-
 
| 12|| 7th {{Star}}
 
|-
 
| 13|| 9th {{Star}}
 
|-
 
| 14|| 9th {{Star}}
 
|-
 
| 15|| {{MaxStar}}
 
|-
 
| 16|| {{MaxStar}}
 
|-
 
| 17+|| Never
 
|}
 
 
|-|11=
 
{|class="wikitable"
 
!guaranteed cost
 
!1st time guaranteeing is worth it (in {{Star}})
 
|-
 
| 11|| 6th {{Star}}
 
|-
 
| 12|| 6th {{Star}}
 
|-
 
| 13|| 7th {{Star}}
 
|-
 
| 14|| 8th {{Star}}
 
|-
 
| 15|| 9th {{Star}}
 
|-
 
| 16|| 9th {{Star}}
 
|-
 
| 17|| {{MaxStar}}
 
|-
 
| 18+|| Never
 
|}
 
 
|-|12=
 
{|class="wikitable"
 
!guaranteed cost
 
!1st time guaranteeing is worth it (in {{Star}})
 
|-
 
| 12|| 6th {{Star}}
 
|-
 
| 13|| 6th {{Star}}
 
|-
 
| 14|| 7th {{Star}}
 
|-
 
| 15|| 8th {{Star}}
 
|-
 
| 16|| 9th {{Star}}
 
|-
 
| 17|| 9th {{Star}}
 
|-
 
| 18|| {{MaxStar}}
 
|-
 
| 19|| {{MaxStar}}
 
|-
 
| 20+|| Never
 
|}
 
 
|-|13=
 
{|class="wikitable"
 
!guaranteed cost
 
!1st time guaranteeing is worth it (in {{Star}})
 
|-
 
| 13|| 6th {{Star}}
 
|-
 
| 14|| 6th {{Star}}
 
|-
 
| 15|| 7th {{Star}}
 
|-
 
| 16|| 8th {{Star}}
 
|-
 
| 17|| 9th {{Star}}
 
|-
 
| 18|| 9th {{Star}}
 
|-
 
| 19|| 9th {{Star}}
 
|-
 
| 20|| {{MaxStar}}
 
|-
 
| 21+|| Never
 
|}
 
 
|-|14=
 
{|class="wikitable"
 
!guaranteed cost
 
!1st time guaranteeing is worth it (in {{Star}})
 
|-
 
| 14|| 6th {{Star}}
 
|-
 
| 15|| 6th {{Star}}
 
|-
 
| 16|| 7th {{Star}}
 
|-
 
| 17|| 7th {{Star}}
 
|-
 
| 18|| 8th {{Star}}
 
|-
 
| 19|| 9th {{Star}}
 
|-
 
| 20|| 9th {{Star}}
 
|-
 
| 21|| {{MaxStar}}
 
|-
 
| 22|| {{MaxStar}}
 
|-
 
| 23+|| Never
 
|}
 
 
|-|15=
 
{|class="wikitable"
 
!guaranteed cost
 
!1st time guaranteeing is worth it (in {{Star}})
 
|-
 
| 15|| 6th {{Star}}
 
|-
 
| 16|| 6th {{Star}}
 
|-
 
| 17|| 7th {{Star}}
 
|-
 
| 18|| 7th {{Star}}
 
|-
 
| 19|| 8th {{Star}}
 
|-
 
| 20|| 9th {{Star}}
 
|-
 
| 21|| 9th {{Star}}
 
|-
 
| 22|| 9th {{Star}}
 
|-
 
| 23|| {{MaxStar}}
 
|-
 
| 24|| {{MaxStar}}
 
|-
 
| 25+|| Never
 
|}
 
 
|-|16+=
 
There is only one equipment with a base brut screw cost above 15 (the [[SK Radar]]), and as every equipment consuming expensive "Akashi exclusive" or rare equipment, the average screw cost is less important that the raw cost, meaning that guaranteeing the upgrade is always worth it
 
</tabber>
 
 
=Improvement Guide=
 
Several rankings for equipment improvements. Do note that:
 
*Many equipment possibly improbable are omitted, as they are either:
 
**Already listed in one of the lists,
 
**Are obtainable elsewhere for cheaper,
 
**Are just not worth improving or upgrading.
 
*Some equipment can be in several lists.
 
 
==Quests Improvements==
 
Several [[Quests]] require specific equipment to be upgraded in order to be completed, while others simply allow the use of upgraded equipment for conversion.
 
 
===Quests Requirements===
 
Here is the list of equipment that required to be improved to complete some quests:
 
*''All improvements are lost during conversions.
 
 
{|class="wikitable mw-collapsible mw-collapsed" style="margin:auto"
 
|+Quests Requirements
 
!Quest!!Equipment!!{{Star}} Level !!Notes
 
|-
 
|{{Q|F36}} ||[[61cm Triple (Oxygen) Torpedo Mount]]<br>[[61cm Quintuple (Oxygen) Torpedo Mount]] ||{{MaxStar}} ||Both
 
|-
 
|{{Q|F51}} ||[[Type 2 Seaplane Fighter Kai]] ||{{MaxStar}}
 
|-
 
|{{Q|F52}} ||[[Type 2 Seaplane Fighter Kai]] ||{{MaxStar}}
 
|-
 
|{{Q|F58}} ||[[Zuiun (634 Air Group)]] ||{{MaxStar}}
 
|-
 
|{{Q|F61}} ||[[F61]] ||{{MaxStar}}
 
|-
 
|{{Q|F63}} ||[[F6F-5]] ||{{MaxStar}}
 
|-
 
|{{Q|F74}} ||[[Prototype 41cm Triple Gun Mount]] ||{{MaxStar}}
 
|-
 
|{{Q|F76}} ||[[12.7cm Twin Gun Mount Model A Kai 2]] ||{{MaxStar}}
 
|-
 
|{{Q|F78}} ||[[12.7cm Twin Gun Mount Model B Kai 2]] ||{{MaxStar}}
 
|-
 
|{{Q|F87}} ||[[Zuiun Kai Ni (634 Air Group)]] ||{{MaxStar}}
 
|-
 
|{{Q|F101}} ||[[Type 0 Reconnaissance Seaplane Model 11B]] ||{{MaxStar}}
 
|-
 
|{{Q|F103}} ||[[Type 3 Active Sonar]] ||{{MaxStar}}
 
|-
 
|{{Q|F104}} ||[[Daihatsu Landing Craft (Type 89 Medium Tank & Landing Force)]] ||{{MaxStar}}
 
|-
 
|{{Q|F105}} ||[[Type 1 Land-based Attack Aircraft Model 22A]] ||{{MaxStar}}|| Requires to craft 8 [[Tenzan Model 12A]]
 
|-
 
|{{Q|F111}} ||[[Type 98 Reconnaissance Seaplane (Night Recon)]]<br>[[Type 0 Reconnaissance Seaplane Model 11B]] ||{{MaxStar}} ||Both
 
|-
 
|{{Q|F116}} ||[[35.6cm Twin Gun Mount Kai San (Dazzle Camouflage)]] ||{{Star}}+3 ||All {{Star}} past 3 are lost on conversion
 
|-
 
|{{Q|F117}} ||[[Late Model Bow Torpedo Mount (6 tubes)]] ||{{MaxStar}}
 
|-
 
|{{Q|Fq1}} ||[[Type 96 Fighter]] ||{{MaxStar}}
 
|-
 
|{{Q|Fq7}} ||[[12.7cm Twin Gun Mount Model A Kai 2]] ||{{MaxStar}}
 
|-
 
|{{Q|Fy2}} ||[[Swordfish]] ||{{MaxStar}}
 
|-
 
|{{Q|Fy10}} ||[[Type 0 Reconnaissance Seaplane]] ||{{MaxStar}}
 
|}
 
 
===Ultra Highly Advised===
 
'''It is highly recommended to improve the following equipment to {{MaxStar}} before proceeding with those quests as {{TextGlow|any {{Star}} are carried over to the reward|black|text-colour=lime|glow-size=2px}}, and {{color|red|the rewards cannot be [[Improvement|improved]] afterward!}}
 
 
{|class="wikitable mw-collapsible mw-collapsed" style="margin:auto"
 
|+Ultra Highly Advised
 
!Quest!!Equipment
 
|-
 
|{{Q|F13}} ||[[Type 97 Torpedo Bomber (Tomonaga Squadron)]]
 
|-
 
|{{Q|F14}} ||[[Type 99 Dive Bomber (Egusa Squadron)]]
 
|-
 
|{{Q|F15}} ||[[Zero Fighter Model 52C (601 Air Group)]]
 
|}
 
 
===Highly Advised===
 
In those quests, {{TextGlow|any {{Star}} the equipment has, are carried over to the reward.|black|text-colour=lime|glow-size=2px}} It is therefore advised to upgrade the equipment before completing the quest, as it is cheaper to do so.
 
 
{|class="wikitable mw-collapsible mw-collapsed" style="margin:auto"
 
|+Highly Advised
 
!Quest!!Equipment!!Notes
 
|-
 
|{{Q|F19}} ||[[Type 97 Torpedo Bomber (Murata Squadron)]] ||Not improvable yet
 
|-
 
|{{Q|F24}} ||[[Type 0 Fighter Model 21 (Skilled)]] ||rowspan=3|It is advised to start improvements with Fm1 for this chain.
 
|-
 
|{{Q|F26}} ||[[Type 0 Fighter Model 52 (Skilled)]]
 
|-
 
|{{Q|F27}} ||[[Zero Fighter Model 52C (w/ Iwai Flight)]]
 
|-
 
|{{Q|F28}} ||[[Type 0 Fighter Model 21 (Skilled)]] ||rowspan=3|It is advised to start improvements with Fm1 for this chain.
 
|-
 
|{{Q|F29}} ||[[Zero Fighter Model 21 (w/ Iwamoto Flight)]]
 
|-
 
|{{Q|F30}} ||[[Zero Fighter Model 52A (w/ Iwamoto Flight)]]
 
|-
 
|{{Q|Fm1}} ||[[Type 0 Fighter Model 21]] ||
 
|-
 
|{{Q|Fm2}} ||[[Type 0 Fighter Model 21 (Skilled)]] ||It is advised to start improvements with Fm1.
 
|}
 
 
===Traps===
 
Some quests allow the use of upgraded equipment for completion, but will not keep any of the current equipment improvements, and so should be cleared with unimproved equipment:
 
 
{|class="wikitable mw-collapsible mw-collapsed" style="margin:auto"
 
|+Traps
 
!Quest!!Equipment
 
|-
 
|{{Q|F40}} ||[[Type 1 Land-based Attack Aircraft]]
 
|-
 
|{{Q|F62}} ||[[TBF]]
 
|-
 
|{{Q|F86}} ||[[Suisei Model 12A]]
 
|-
 
|{{Q|F89}} ||[[7.7mm Machine Gun]]
 
|-
 
|{{Q|F107}} ||[[Ki-102 B]]
 
|-
 
|{{Q|F112}} ||[[5inch Single Gun Mount Mk.30]]
 
|-
 
|{{Q|F115}} ||[[Smoke Generator (Smoke Screen)]]
 
|-
 
|{{Q|Fq2}} ||[[Type 96 Land-based Attack Aircraft]]
 
|-
 
|{{Q|Fq5}} ||[[Type 0 Fighter Model 52]]
 
|}
 
 
==Collection Improvements==
 
Some equipment are only obtainable via Akashi upgrades.
 
*''The list can be found [[Equipment#Unbuildable Equipment|here]]
 
*If completing the Kancodex is a personal goal, then crafting those equipment becomes a necessity in the long run.
 
*Making all those equipment should NOT be a priority over the rest, as most are not very useful or even useless.
 
*See below for when making those equipment overlap with advised improvements.
 
 
==Upgrade Advices==
 
Here is a list of improvements that have as a main goal to "'''upgrade'''" said equipment into a better one.
 
*Do that certain upgrades can be done in chains, with part of the chain ranging from worse than the upgrade, equivalent to, or even better.
 
*The advisedness is here ranked from the most at '''1''', to least at '''10'''.
 
*The "Total Srew Cost" is given as an indication, but does not reflect "real" with [[#Screw Guaranteeing/Saving|guaranteeing savings]] and consumed equipment being great factors to take into account.
 
*Several good equipment are not listed there as they can be obtained otherwise more cheaply, or because the upgrade is just not worth it.
 
 
{|class="wikitable mw-collapsible mw-collapsed sortable" style="margin:auto"
 
|+Upgrade Advices
 
|-
 
! Priority Level
 
! Equipment Goal
 
! Equipment To Upgrade
 
! Total Srew Cost
 
! Notes
 
|-
 
! 6
 
| [[41cm Triple Gun Mount Kai]]
 
| [[Prototype 41cm Triple Gun Mount]]
 
| 69
 
|-
 
! 5
 
| [[41cm Twin Gun Mount Kai 2]]
 
| [[41cm Triple Gun Mount Kai]]
 
| 92
 
|Consumes 1 [[Prototype 46cm Twin Gun Mount]]
 
|-
 
! 4
 
| [[41cm Triple Gun Mount Kai 2]]
 
| [[41cm Triple Gun Mount Kai]]
 
| 93
 
|
 
|-
 
! 2
 
| [[12cm 30 Tube Rocket Launcher Kai 2]]
 
| [[12cm 30-tube Rocket Launcher]]
 
| 40
 
| A goal is to 6, enough to equip a full "carrier fleet".
 
|-
 
! 1
 
| [[Type 2 Seaplane Fighter Kai]]
 
| [[Type 0 Reconnaissance Seaplane]]
 
| 40
 
| The goal is to have at least 6 good [[SPF]]
 
|-
 
! 1
 
| [[Kyoufuu Kai]]
 
| [[Type 2 Seaplane Fighter Kai]]
 
| 77
 
|-
 
! 3
 
| [[Type 1 Armor Piercing Shell]]
 
| [[Type 91 Armor Piercing Shell]]
 
| 22
 
|-
 
! 10
 
| [[Type 1 Armor Piercing Shell Kai]]
 
| [[Type 1 Armor Piercing Shell]]
 
| 35
 
| The best AP shell, but extremely expensive
 
|-
 
! 1
 
| [[Special Type 2 Amphibious Tank]]
 
| [[Daihatsu Landing Craft (Type 89 Medium Tank & Landing Force)]]
 
| 39
 
|-
 
! 1
 
| [[Daihatsu Landing Craft (Type 89 Medium Tank & Landing Force)]]
 
| [[Daihatsu Landing Craft]]
 
| 24
 
|-
 
! 4
 
| [[Toku Daihatsu Landing Craft]]
 
| [[Daihatsu Landing Craft]]
 
| 29
 
|-
 
! 5
 
| [[Armed Daihatsu]]
 
| [[Daihatsu Landing Craft]]
 
| 23
 
| Consumes a [[Daihatsu Landing Craft (Type 89 Medium Tank & Landing Force)]]
 
|-
 
! 5
 
| [[F6F-5]]
 
| [[F6F-3]]
 
| 70
 
|-
 
! 7
 
| [[Type 0 Fighter Model 64 (Skilled Fighter-bomber)]]
 
| [[Type 0 Fighter Model 64 (Air Superiority Fighter Specification)]]
 
| 70
 
|-
 
! 5
 
| [[Shiden Kai 4]]
 
| [[Shiden Kai 2]]
 
| 59
 
|-
 
! 8
 
| [[Seafire Mk.III Kai]]
 
| [[Spitfire Mk.V]]
 
| 49
 
|-
 
! 3
 
| [[Spitfire Mk.V]]
 
| [[Spitfire Mk.I]]
 
| 33
 
|-
 
! 6
 
| [[Re.2005 Kai]]
 
| [[Re.2001 CB Kai]]
 
| 60
 
|-
 
! 10
 
| [[Re.2001 CB Kai]]
 
| [[Re.2001 OR Kai]]
 
| 49
 
| Only used to make the [[Re.2005 Kai]]
 
|-
 
! 10
 
| [[Fulmar (Reconnaissance Fighter/Skilled)]]
 
| [[Fulmar]]
 
| 39
 
|Only useful in some "European Events"
 
|-
 
! 9
 
| [[Type 99 Dive Bomber Model 22 (Skilled)]]
 
| [[Type 99 Dive Bomber Model 22]]
 
| 36
 
|-
 
! 6
 
| [[SB2C-3]]
 
| [[SBD-5]]
 
| 43
 
|-
 
! 8
 
| [[Prototype Type 97 Torpedo Bomber Kai (Skilled) No. 3 Model E (w/ Type 6 Airborne Radar Kai)]]
 
| [[Type 97 Torpedo Bomber (Skilled)]]
 
| 45
 
|-
 
! 10
 
| [[Tenzan Model 12A]]
 
| [[Tenzan]]
 
| 34
 
|-
 
! 9
 
| [[Tenzan Model 12A Kai (w/ Type 6 Airborne Radar Kai)]]
 
| [[Prototype Type 97 Torpedo Bomber Kai No. 3 Model E (w/ Type 6 Airborne Radar Kai)]]
 
| 63
 
|-
 
! 5
 
| [[Jet Keiun Kai]]
 
| [[Prototype Keiun (Carrier-based Reconnaissance Model)]]
 
| 86
 
|-
 
! 8
 
| [[Type 2 Two-seat Fighter Toryuu Model C]]
 
| [[Type 2 Two-seat Fighter Toryuu]]
 
| 33
 
|-
 
! 3
 
| [[Ki-96]]
 
| [[Type 2 Two-seat Fighter Toryuu Model C]]
 
| 38
 
|-
 
! 8
 
| [[Ki-102 B]]
 
| [[Ki-96]]
 
| 60
 
|-
 
! 5
 
| [[Type 1 Fighter Hayabusa Model II]]
 
| [[Type 1 Fighter Hayabusa Model II]]
 
| 39
 
|-
 
! 6
 
| [[Shiden Kai (343 Air Group) 301st Fighter Squadron]]
 
| [[Shiden Model 21 Shiden Kai]]
 
| 71
 
|-
 
! 7
 
| [[Do 217 E-5 + Hs293 Initial Model]]
 
| [[Do 17 Z-2]]
 
| 63
 
| A great LBB with [[AAR]] but with low range
 
|-
 
! 10
 
| [[Type 1 Land-based Attack Aircraft Model 34]]
 
| [[Type 1 Land-based Attack Aircraft Model 22A]]
 
| 56
 
| Consumes 8 [[Tenzan Model 12A]]
 
|-
 
! 7
 
| [[Type 4 Heavy Bomber Hiryuu (Skilled)]]
 
| [[Type 4 Heavy Bomber Hiryuu]]
 
| 72
 
| A great LBB with [[AAR]] but with low range
 
|-
 
! 10
 
| [[12cm Single Gun Mount Kai 2]]
 
| [[12cm Single Gun Mount]]
 
| 19
 
| A good gun but in too few situations
 
|-
 
! 9
 
| [[Prototype Long-barrel 12.7cm Twin Gun Mount Model A Kai 4]]
 
| [[12.7cm Twin Gun Mount Model A Kai 2]]
 
| 38
 
| A great gun but in too few situations
 
|-
 
! 3
 
| [[5inch Single Gun Mount Mk.30 Kai + GFCS Mk.37]]
 
| [[5inch Single Gun Mount Mk.30 Kai]]
 
| 101
 
| Best [[AACI]] small gun
 
|-
 
! 9
 
| [[12.7cm Twin Gun Mount Model C Kai 3]]
 
| [[12.7cm Twin Gun Mount Model C Kai 2]]
 
| 34
 
| A great gun but in too few situations
 
|-
 
! 5
 
| [[14cm Twin Gun Mount Kai]]
 
| [[14cm Twin Gun Mount]]
 
| 17
 
| Rarely more than 4 are needed
 
|-
 
! 3
 
| [[15.2cm Twin Gun Mount Kai 2]]
 
| [[15.2cm Twin Gun Mount Kai]]
 
| 44
 
| Best CL gun
 
|-
 
! 9
 
| [[15.5cm Triple Gun Mount Kai]]
 
| [[15.5cm Triple Gun Mount]]
 
| 34
 
|-
 
! 8
 
| [[15.5cm Triple Secondary Gun Mount Kai]]
 
| [[15.5cm Triple Secondary Gun Mount]]
 
| 34
 
|-
 
! 6
 
| [[15.5cm Triple Secondary Gun Mount Kai 2]]
 
| [[15.5cm Triple Secondary Gun Mount Kai]]
 
| 53
 
|-
 
! 10
 
| [[8inch Triple Gun Mount Mk.9 mod.2]]
 
| [[8inch Triple Gun Mount Mk.9]]
 
| 42
 
| Best cruiser gun for FP
 
|-
 
! 7
 
| [[35.6cm Triple Gun Mount Kai (Dazzle Camouflage)]]
 
| [[35.6cm Twin Gun Mount (Dazzle Camouflage)]]
 
| 43
 
|-
 
! 6
 
| [[35.6cm Twin Gun Mount Kai 3 (Dazzle Camouflage)]]
 
| [[35.6cm Triple Gun Mount Kai (Dazzle Camouflage)]]
 
| 70
 
|-
 
! 9
 
| [[16inch Mk.VIII Twin Gun Mount Kai]]
 
| [[16inch Mk.V Twin Gun Mount]]
 
| 56
 
|-
 
! 10
 
| [[16inch Mk.VIII Twin Gun Mount Kai]]
 
| [[38.1cm Mk.I Twin Gun Mount]]
 
| 48
 
|-
 
! 9
 
| [[16inch Mk.I Triple Gun Mount Kai + FCR Type 284]]
 
| [[16inch Mk.I Triple Gun Mount + AFCT Kai]]
 
| 68
 
|-
 
! 7
 
| [[46cm Triple Gun Mount Kai]]
 
| [[46cm Triple Gun Mount]]
 
| 69
 
|-
 
! 10
 
| [[51cm Twin Gun Mount]]
 
| [[Prototype 51cm Twin Gun Mount]]
 
| 85
 
|-
 
! 3
 
| [[16inch Triple Gun Mount Mk.7 + GFCS]]
 
| [[16inch Triple Gun Mount Mk.7]]
 
| 100
 
|-
 
! 8
 
| [[8cm High-angle Gun Kai + Additional Machine Guns]]
 
| [[8cm High-angle Gun]]
 
| 49
 
|-
 
! 5
 
| [[Type C Kouhyouteki]]
 
| [[Type A Kouhyouteki]]
 
| 28
 
|-
 
! 5
 
| [[Type 13 Air Radar Kai (Late Model)]]
 
| [[Type 13 Air Radar Kai]]
 
| 55
 
|-
 
! 6
 
| [[15m Duplex Rangefinder Kai + Type 21 Radar Kai 2 + Skilled Fire Direction Center]]
 
| [[15m Duplex Rangefinder + Type 21 Radar Kai 2]]
 
| 80
 
|-
 
! 10
 
| [[SK + SG Radar]]
 
| [[SK Radar]]
 
| 94
 
|-
 
! 9
 
| [[Type 32 Surface Radar Kai]]
 
| [[Type 32 Surface Radar]]
 
| 58
 
|-
 
! 6
 
| [[Type 4 Passive Sonar]]
 
| [[Type 93 Passive Sonar]]
 
| 29
 
|-
 
! 5
 
| [[Type144/147 ASDIC]]
 
| [[Type124 ASDIC]]
 
| 57
 
|-
 
! 10
 
| [[Type 3 Shell]]
 
| [[Type 3 Shell]]
 
| 60
 
| Only marginal stat boost
 
|-
 
! 7
 
| [[Bi Type 40mm Twin Autocannon Mount]]
 
| [[QF 2-pounder Octuple Pom-pom Gun Mount]]
 
| 19
 
| Very cheap
 
|-
 
! 6
 
| [[Zuiun Model 12 (634 Air Group)]]
 
| [[Zuiun Model 12]]
 
| 69
 
|-
 
! 4
 
| [[Zuiun (634 Air Group/Skilled)]]
 
| [[Zuiun Model 12 (634 Air Group)]]
 
| 56
 
|-
 
! 3
 
| [[Zuiun Kai 2 (634 Air Group)]]
 
| [[Zuiun (634 Air Group/Skilled)]]
 
| 86
 
|-
 
! 1
 
| [[Prototype Night Zuiun (Attack Equipment)]]
 
| [[Zuiun Kai 2 (634 Air Group)]]
 
| 110
 
|-
 
! 10
 
| [[S-51J Kai]]
 
| [[S-51J]]
 
| 96
 
| Extremely niche
 
|-
 
! 6
 
| [[Type 4 20cm Anti-ground Rocket Launcher (Concentrated Deployment)]]
 
| [[Shipborne Model Type 4 20cm Anti-ground Rocket Launcher]]
 
| 53
 
|-
 
! 4
 
| [[Ryuusei Kai (Skilled)]]
 
| [[Ryuusei Kai]]
 
| 47
 
|}
 
 
==Improvement Advices==
 
Here is a list of improvements that have as a main goal to "'''enhance'''" said equipment's [[stats]].
 
*In some cases, the equipment can be upgraded, but the upgrade is inferior to the improved base equipment,
 
*In some cases, the improved equipment only shows its best potential on certain ships, thanks to [[Visible Fit Bonuses]],
 
*Some of the listed equipment below are obtained from [[#Upgrade Advices|above listed upgrades]],
 
*Equipment being improved only for upgrade purposes are not listed there,
 
*The improvements related to [[#Quests Improvements|Quests]] are not listed there, and should be done with the quests in mind.
 
 
{|class="wikitable mw-collapsible mw-collapsed sortable" style="margin:auto"
 
|+Improvement Advices
 
! Priority Level
 
! Equipment
 
! Base Screw Cost
 
! Notes
 
|-
 
| 1
 
| [[Combat Ration]]
 
| 0
 
| Only used to farm screws with {{Q|Fd6}}
 
|-
 
| 1
 
| [[Shiden Kai 4]]
 
| 4
 
| 12 AA fighter
 
|-
 
| 3
 
| [[F6F-5]]
 
| 6
 
| 12 AA fighter
 
|-
 
| 7
 
| [[Type 0 Fighter Model 64 (Air Superiority Fighter Specification)]]
 
| 5
 
|-
 
| 5
 
| [[Type 0 Fighter Model 64 (Skilled Fighter-bomber)]]
 
| 6
 
|-
 
| 10
 
| [[Type 0 Fighter Model 64 (Two-seat w/ KMX)]]
 
| 5
 
|-
 
| 9
 
| [[Type 99 Dive Bomber Model 22 (Skilled)]]
 
| 3
 
|-
 
| 10
 
| [[Swordfish Mk.II (Skilled)]]
 
| 3
 
|-
 
| 9
 
| [[TBF]]
 
| 3
 
|-
 
| 10
 
| [[Type 2 Reconnaissance Aircraft]]
 
| 3
 
| Ultra niche role
 
|-
 
| 3
 
| [[Ki-96]]
 
| 4
 
|-
 
| 5
 
| [[Type 1 Fighter Hayabusa Model III A]]
 
| 4
 
|-
 
| 2
 
| [[Spitfire Mk.V]]
 
| 3
 
|-
 
| 8
 
| [[Bomb-carrying Type 1 Fighter Hayabusa Model III Kai (65th Squadron)]]
 
| 4
 
|-
 
| 4
 
| [[Type 1 Land-based Attack Aircraft Model 34]]
 
| 5
 
|-
 
| 9
 
| [[Type 1 Land-based Attack Aircraft (Hachiman Force)]]
 
| 3
 
|-
 
| 5
 
| [[Type 1 Land-based Attack Aircraft (Nonaka Squadron)]]
 
| 5
 
|-
 
| 10
 
| [[12cm Single Gun Mount Kai 2]]
 
| 2
 
| Very niche
 
|-
 
| 8
 
| [[12.7cm Twin Gun Mount Model A Kai 2]]
 
| 2
 
|-
 
| 5
 
| [[Prototype Long-barrel 12.7cm Twin Gun Mount Model A Kai 4]]
 
| 3
 
|-
 
| 4
 
| [[12.7cm Twin Gun Mount Model A Kai 3 (Wartime Modification) + Anti-Aircraft Fire Director]]
 
| 4
 
|-
 
| 9
 
| [[12.7cm Single High-angle Gun Mount (Late Model)]]
 
| 2
 
| Only one, very niche
 
|-
 
| 6
 
| [[12.7cm Twin Gun Mount Model C Kai 2]]
 
| 2
 
|-
 
| 3
 
| [[12.7cm Twin Gun Mount Model C Kai 3]]
 
| 5
 
|-
 
| 1
 
| [[12.7cm Twin Gun Mount Model D Kai 2]]
 
| 5
 
| Best DD gun, with night bonuses
 
|-
 
| 9
 
| [[130mm B-13 Twin Gun Mount]]
 
| 5
 
|-
 
| 6
 
| [[5inch Single Gun Mount Mk.30 Kai]]
 
| 7
 
|-
 
| 3
 
| [[12.7cm Twin Gun Mount Model B Kai 4 (Wartime Modification) + Anti-Aircraft Fire Director]]
 
| 6
 
|-
 
| 1
 
| [[10cm Twin High-angle Gun Mount + Anti-Aircraft Fire Director]]
 
| 3
 
| 2nd best [[AACI]] small gun
 
|-
 
| 4
 
| [[14cm Twin Gun Mount Kai]]
 
| 3
 
|-
 
| 5
 
| [[Bofors 15.2cm Twin Gun Mount Model 1930]]
 
| 3
 
|-
 
| 5
 
| [[15.2cm Twin Gun Mount Kai]]
 
| 2
 
|Great CL gun
 
|-
 
| 1
 
| [[15.2cm Twin Gun Mount Kai 2]]
 
| 3
 
|Best CL gun
 
|-
 
| 8
 
| [[15.5cm Triple Gun Mount Kai]]
 
| 4
 
|-
 
| 2
 
| [[20.3cm (No.2) Twin Gun Mount]]
 
| 2
 
|-
 
| 1
 
| [[20.3cm (No.3) Twin Gun Mount]]
 
| 2
 
|-
 
| 6
 
| [[8inch Triple Gun Mount Mk.9]]
 
| 2
 
|-
 
| 4
 
| [[8inch Triple Gun Mount Mk.9 mod.2]]
 
| 3
 
|-
 
| 7
 
| [[16inch Triple Gun Mount Mk.6 mod.2]]
 
| 4
 
|-
 
| 3
 
| [[16inch Triple Gun Mount Mk.6 mod.2]]
 
| 8
 
|-
 
| 9
 
| [[16inch Mk.VIII Twin Gun Mount Kai]]
 
| 5
 
|-
 
| 8
 
| [[16inch Mk.I Triple Gun Mount Kai + FCR Type 284]]
 
| 5
 
|-
 
| 10
 
| [[30.5cm Triple Gun Mount Kai]]
 
| 4
 
|-
 
| 9
 
| [[38.1cm Mk.I/N Twin Gun Mount Kai]]
 
| 3
 
|-
 
| 10
 
| [[38cm Twin Gun Mount Kai]]
 
| 3
 
|-
 
| 4
 
| [[35.6cm Triple Gun Mount Kai (Dazzle Camouflage)]]
 
| 4
 
|-
 
| 4
 
| [[35.6cm Twin Gun Mount Kai 3 (Dazzle Camouflage)]]
 
| 6
 
|-
 
| 2
 
| [[38cm Quadruple Gun Mount Kai]]
 
| 7
 
| Great gun for most (F)BB(V)
 
|-
 
| 3
 
| [[41cm Triple Gun Mount Kai 2]]
 
| 7
 
|-
 
| 3
 
| [[41cm Triple Gun Mount Kai 2]]
 
| 7
 
|-
 
| 5
 
| [[46cm Triple Gun Mount Kai]]
 
| 7
 
|Very nice
 
|-
 
| 8
 
| [[51cm Twin Gun Mount]]
 
| 7
 
|Very nice
 
|-
 
| 4
 
| [[8cm High-angle Gun Kai + Additional Machine Guns]]
 
| 4
 
| For [[RE]] usage only
 
|-
 
| 8
 
| [[90mm Single High-angle Gun Mount]]
 
| 1
 
|-
 
| 9
 
| [[10cm Twin High-angle Gun Mount Kai + Additional Machine Guns]]
 
| 4
 
| For [[RE]] usage only
 
|-
 
| 5
 
| [[10cm Twin High-angle Gun Mount Battery Concentrated Deployment]]
 
| 5
 
|-
 
| 8
 
| [[15.2cm Triple Gun Mount]]
 
| 6
 
|-
 
| 5
 
| [[15.2cm Triple Gun Mount]]
 
| 4
 
|-
 
| 2
 
| [[15.2cm Triple Gun Mount]]
 
| 2
 
|-
 
| 7
 
| [[53cm Twin Torpedo Mount]]
 
| 1
 
| Only one, very niche
 
|-
 
| 5
 
| [[533mm Quintuple Torpedo Mount (Initial Model)]]
 
| 3
 
|-
 
| 4
 
| [[61cm Triple (Oxygen) Torpedo Mount Late Model]]
 
| 3
 
|-
 
| 3
 
| [[61cm Quadruple (Oxygen) Torpedo Mount]]
 
| 1
 
| Only one
 
|-
 
| 1
 
| [[61cm Quadruple (Oxygen) Torpedo Mount Late Model]]
 
| 3
 
|-
 
| 2
 
| [[61cm Quintuple (Oxygen) Torpedo Mount]]
 
| 3
 
|-
 
| 2
 
| [[61cm Quintuple (Oxygen) Torpedo Mount]]
 
| 5
 
|-
 
| 7
 
| [[Type 13 Air Radar Kai (Late Model)]]
 
| 3
 
|-
 
| 8
 
| [[SG Radar (Initial Model)]]
 
| 6
 
|-
 
| 8
 
| [[Type 21 Air Radar Kai 2]]
 
| 5
 
|-
 
| 10
 
| [[SK + SG Radar]]
 
| 6
 
|-
 
| 6
 
| [[Type 32 Surface Radar Kai]]
 
| 5
 
|-
 
| 5
 
| [[Type 3 Active Sonar]]
 
| 2
 
|-
 
| 3
 
| [[Type 3 Active Sonar Kai]]
 
| 4
 
|-
 
| 3
 
| [[Type 4 Passive Sonar]]
 
| 3
 
|-
 
| 10
 
| [[Type 0 Passive Sonar]]
 
| 3
 
| Unusable on most ASW ships
 
|-
 
| 3
 
| [[Type 2 Depth Charge]]
 
| 2
 
|-
 
| 3
 
| [[Type 3 Depth Charge Projector]]
 
| 2
 
|-
 
| 4
 
| [[Type 3 Depth Charge Projector (Concentrated Deployment)]]
 
| 3
 
|-
 
| 3
 
| [[Type 2 Depth Charge Kai 2]]
 
| 3
 
|-
 
| 2
 
| [[Type 91 Armor Piercing Shell]]
 
| 1
 
|-
 
| 1
 
| [[Type 1 Armor Piercing Shell]]
 
| 1
 
|-
 
| 10
 
| [[Type 1 Armor Piercing Shell Kai]]
 
| 7
 
|-
 
| 1
 
| [[Type 3 Shell]]
 
| 4
 
|-
 
| 2
 
| [[Type 3 Shell Kai]]
 
| 6
 
|-
 
| 4
 
| [[Type 3 Shell Kai 2]]
 
| 6
 
|-
 
| 4
 
| [[2cm Flakvierling 38]]
 
| 3
 
| Has great fit bonuses
 
|-
 
| 1
 
| [[12cm 30-tube Rocket Launcher Kai 2]]
 
| 4
 
| Most useful AA gun
 
|-
 
| 5
 
| [[25mm Triple Autocannon Mount (Concentrated Deployment)]]
 
| 3
 
|-
 
| 2
 
| [[25mm Triple Autocannon Mount (Concentrated Deployment)]]
 
| 2
 
|-
 
| 10
 
| [[New Model High Temperature High Pressure Boiler]]
 
| 8
 
|-
 
| 5
 
| [[New Kanhon Design Anti-torpedo Bulge (Medium)]]
 
| 6
 
|-
 
| 10
 
| [[Pugliese Underwater Protection Bulkhead]]
 
| 4
 
|-
 
| 5
 
| [[New Kanhon Design Anti-torpedo Bulge (Large)]]
 
| 6
 
|-
 
| 2
 
| [[Searchlight]]
 
| 2
 
| Only one
 
|-
 
| 10
 
| [[Type 96 150cm Searchlight]]
 
| 3
 
| Only one
 
|-
 
| 10
 
| [[Swordfish Mk.II Kai (Reconnaissance Seaplane Model)]]
 
| 3
 
|-
 
| 3
 
| [[Type 0 Observation Seaplane]]
 
| 2
 
|-
 
| 3
 
| [[Type 0 Reconnaissance Seaplane Model 11B]]
 
| 4
 
|-
 
| 9
 
| [[Fairey Seafox Kai]]
 
| 4
 
|-
 
| 3
 
| [[Shiun]]
 
| 4
 
|-
 
| 5
 
| [[Ro.44 Seaplane Fighter bis]]
 
| 4
 
|-
 
| 2
 
| [[Type 2 Seaplane Fighter Kai (Skilled)]]
 
| 7
 
|-
 
| 2
 
| [[Kyoufuu Kai]]
 
| 4
 
|-
 
| 2
 
| [[Kyoufuu Kai 2]]
 
| 7
 
|-
 
| 10
 
| [[Laté 298B]]
 
| 3
 
|-
 
| 5
 
| [[Zuiun (634 Air Group/Skilled)]]
 
| 6
 
| 4th best SBP
 
|-
 
| 3
 
| [[Zuiun Kai 2 (634 Air Group)]]
 
| 8
 
| 2nd best SBP
 
|-
 
| 10
 
| [[S-51J Kai]]
 
| 8
 
|Ultra niche
 
|-
 
| 11
 
| [[Type 3 Command Liaison Aircraft Kai]]
 
| 3
 
| Useless
 
|-
 
| 1
 
| [[Daihatsu Landing Craft (Type 89 Medium Tank & Landing Force)]]
 
| 2
 
| Best against [[Installation]]s
 
|-
 
| 1
 
| [[Special Type 2 Amphibious Tank]]
 
| 2
 
| Best against [[Installation]]s
 
|-
 
| 6
 
| [[Toku Daihatsu Landing Craft]]
 
| 2
 
| Good for [[Expeditions]]
 
|-
 
| 3
 
| [[Soukoutei (Armored Boat Class)]]
 
| 2
 
| Geat against [[Installation]]s and [[PT Imp]]s
 
|-
 
| 3
 
| [[Armed Daihatsu]]
 
| 3
 
| Geat against [[Installation]]s and [[PT Imp]]s
 
|}
 
 
==Improvement Traps==
 
Here is a list of equipment that '''should NOT''' be upgraded, as they are needed to upgrade better equipment, and thus upgrading them renders them less valuable.
 
*Additionaly, so far, [[Submarine Equipment]] do not gain any stat from improvement.
 
 
{|class="wikitable mw-collapsible mw-collapsed sortable" style="margin:auto"
 
|+Improvement Traps
 
! Equipment
 
|-
 
| [[Prototype 35.6cm Triple Gun Mount]]
 
|-
 
| [[Prototype 46cm Twin Gun Mount]]
 
|-
 
| [[Type 13 Air Radar Kai (Late Model)]]
 
|-
 
| [[Type 21 Air Radar Kai]]
 
|-
 
| [[Zuiun Model 12 (634 Air Group)]]
 
|}
 
 
=See Also=
 
{{Help}}
 

Revision as of 19:34, 4 August 2023