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Revision as of 04:11, 26 December 2018
Clarified note on German secondaries.
← Older edit
Latest revision as of 09:16, 2 March 2024
Adding unlisted 457mm gun ships to the list for AP overmatching 30mm plating and fixing the link for Hannover in 30mm and 32mm overmatch lists
 
58 intermediate revisions by 24 users not shown
Line 1:Line 1:
 == HE penetration == == HE penetration ==
 +Here are some common armor thicknesses and the minimum HE shell diameters needed to penetrate them, according to the [[Ship:Armor_Penetration#HE_penetration|HE penetration formula]].
  
?Here are some common armor thicknesses and the minimum HE shell diameters needed to penetrate them, according to the [[Ship:Gunnery_%26_Armor_Penetration#HE_penetration|HE penetration formula]]. "Super" refers to the enhanced HE penetration of British battleship primary armament, German battleships (Primaries, 150mm and 128mm secondaries at all tiers and 105mm secondaries from tier IX), German cruisers (tiers IV-X primary armament and 150mm secondaries), and Japanese 100mm guns (Primaries and secondaries).+1/6, 1/5 and 1/4 are the HE shells' penetration coefficients.
 + 
 +{| class="wikitable"
 +|-
 +! rowspan="2" | Armor thickness (mm)
 +! rowspan="2" | Occurrences<br/>(non-exhaustive)
 +! colspan="6" | HE shell diameter needed to penetrate (mm)
 +|-
 +! 1/6
 +! 1/6 with IFHE
 +! 1/5
 +! 1/5 with IFHE
 +! 1/4
 +! 1/4 with IFHE
 +|-
 +| 13
 +| Low-tier destroyer plating
 +| 75
 +| 63
 +| 62.5
 +| 52.5
 +| 50
 +| 42
 +|-
 +| 16
 +| Tier 3 battleship bow/stern<br/>Tier 6 - 7 battleship superstructure<br/>Most tier 6 - 7 cruiser bow/stern<br/>The entirety of British light cruiser and ''[[Smolensk]]'' hull plating<br/>Tier 6 - 7 destroyer plating
 +| 93
 +| 75
 +| 77.5
 +| 62.5
 +| 62
 +| 50
 +|-
 +| 19
 +| Tier 4 - 5 battleship bow/stern<br/>Tier 6 - 7 light cruiser side plating<br/>Tier 8 - 10 battleship superstructure<br/>Tier 8 - 10 destroyer plating
 +| 111
 +| 93
 +| 92.5
 +| 77.5
 +| 74
 +| 62
 +|-
 +| 20
 +| Tier 6 and 7 cruisers' decks<br/>Most tier 8 - 10 cruisers' bow/stern<br/>Tier 8 - 10 light cruisers' side plating
 +| 117
 +| 93
 +| 97.5
 +| 77.5
 +| 78
 +| 62
 +|-
 +| 25
 +| Tier 6 and 7 cruisers' decks<br/>Most tier 8 - 10 cruisers' bow/stern<br/>Tier 8 - 10 light cruisers' side plating<br/>''[[Audacious]]'' bow/stern
 +| 147
 +| 117
 +| 122.5
 +| 97.5
 +| 98
 +| 78
 +|-
 +| 26
 +| Tier 6 and 7 battleship bow/stern and some of their casemate plating
 +| 153
 +| 123
 +| 127.5
 +| 102.5
 +| 102
 +| 82
 +|-
 +| 27
 +| Tier 8 and 9 cruiser decks, some tier 8 - 10 cruiser bow/stern (USN and German heavy cruisers)
 +| 159
 +| 129
 +| 132.5
 +| 107.5
 +| 106
 +| 86
 +|-
 +| 30
 +| Most tier 10 cruiser deck plating, most tier 10 heavy cruiser side plating, ''[[Ägir]]'', ''[[Siegfried]]'', ''[[Albemarle]]'' and ''[[Drake]]'' deck plating
 +| 177
 +| 141
 +| 147.5
 +| 117.5
 +| 118
 +| 94
 +|-
 +| 32
 +| Tier 8 - 10 battleship bow/stern, tier 8 - 10 British and French battleships' casemate plating, ''[[Slava]]'' deck plating
 +| 189
 +| 153
 +| 157.5
 +| 127.5
 +| 126
 +| 102
 +|-
 +| 38
 +| Tier 8 - 10 USN battleship decks
 +| 225
 +| 183
 +| 187.5
 +| 152.5
 +| 150
 +| 122
 +|-
 +| 40
 +| ''[[Petropavlovsk]]'', ''[[Vladivostok]]'' casemate plating
 +| 237
 +| 189
 +| 197.5
 +| 157.5
 +| 158
 +| 126
 +|-
 +| 50
 +| ''[[Khabarovsk]]'', ''[[Delny]]'', ''[[Zorkiy]]'' belt<br/>''[[Moskva]]'', ''[[Ship:Stalingrad|Stalingrad]]'', casemate plating<br/>Tier 7 - 11 (''[[Hannover]]'') German battleships' decks , ''[[Cristoforo Colombo]]'' deck armor
 +''[[Petropavlovsk]]'' Front end armor belt, ''[[Admiral Nakhimov]]'', ''[[Manfred von Richthofen]]'' Flight deck armor
 +| 297
 +| 237
 +| 247.5
 +| 197.5
 +| 198
 +| 158
 +|-
 +| 51
 +|Default penetration of Hindenburg , ''[[Vermont]]'' Deck & Aux armor
 +| 303
 +| 243
 +| 252.5
 +| 202.5
 +| 202
 +| 162
 +|-
 +| 60
 +| ''[[Sovetsky Soyuz]]'', ''[[AL Sov. Rossiya]]'' and ''[[Kremlin]]'' deck
 +| 357
 +| 285
 +| 297.5
 +| 237.5
 +| 238
 +| 190
 +|-
 +| 114
 +| ''[[Audacious]]'' citadel armor <br/>(Currently only ''Thunderer'' and ''Hannover'' can penetrate)
 +| 684
 +| 547
 +| 570
 +| 456
 +| 456
 +| 366
 +|}
 + 
 +== HE penetration (before Update 0.9.2) ==
 + 
 +'''OLD INFORMATION AS PER UPDATE 0.9.2. NEW INFORMATION IS UNDER CONSTRUCTION. THE UPDATE IS QUITE COMPLEX, SOME TIME IS NEEDED TO PROCESS ALL CHANGES. '''
 + 
 +Here are some common armor thicknesses and the minimum HE shell diameters needed to penetrate them, according to the [[Ship:Armor_Penetration#HE_penetration|HE penetration formula]]. "Super" refers to the 1/4 HE penetration coefficient.
  
 === By armor thickness === === By armor thickness ===
Line 7:Line 164:
 {|class = "wikitable" {|class = "wikitable"
 ! rowspan = "2" | Armor thickness !! rowspan = "2" | Occurrences<br/>(non-exhaustive)  ! rowspan = "2" | Armor thickness !! rowspan = "2" | Occurrences<br/>(non-exhaustive)
?! colspan = "4" | HE shell diameter<br/>needed to penetrate +! rowspan = "2" | Beneficiaries (without IFHE)<br/>(non-exhaustive)
?! rowspan = "2" | Beneficiaries<br/>(non-exhaustive)+! rowspan = "2" | Beneficiaries (with IFHE)<br/>(non-exhaustive)
 +|-
 +|
 |- |-
?! Standard !! IFHE !! Super !! Super IFHE+| 16 mm || Tier 3 battleship bow/stern<br/>Tier 6 - 7 battleship superstructure<br/>Most tier 6 - 7 cruiser bow/stern<br/>The entirety of British light cruiser and ''[[Smolensk]]'' hull plating<br/>Tier 6 - 7 destroyer plating
 +| All guns of 114 mm or more calibre
 +|
 |- |-
?| 16 mm || Tier 3 battleship bow/stern<br/>Tier 6-7 battleship superstructure<br/>Most tier 6-7 cruiser bow/stern +| 19 mm || Tier 4 - 5 battleship bow/stern<br/>Tier 6 - 7 light cruiser side plating<br/>Tier 8 - 10 battleship superstructure<br/>Tier 8 - 10 destroyer plating
?| 99 mm || 76 mm || 67 mm || 51 mm+| All guns of 114 mm or more calibre
 |  |
 |- |-
?| 19 mm || Tier 4-5 battleship bow/stern<br/>Tier 8-10 battleship superstructure<br/>Tier 8-10 destroyer plating +| 25 mm || Tier 6 and 7 cruisers' decks, most tier 8 - 10 cruisers' bow/stern, tier 8 - 10 light cruisers' side plating
?| 117 mm || 88 mm || 79 mm || 59 mm+| Heavy cruisers (203mm)<br/>Light cruisers (155mm)<br/>Japanese 100 mm guns<br/>German 105 mm secondary guns
?| Some destroyers (102 mm - 114 mm)+| Most destroyers (120 mm - 150 mm)
 |- |-
?| 25 mm || Tier 6-7 battleship bow/stern<br/>Some tier 8-10 cruiser bow/stern +| 26 mm || Tier 6 and 7 battleship bow/stern and some of their casemate plating
?| 153 mm || 118 mm || 103 mm || 79 mm+| Heavy cruisers (203 mm)<br/>Light cruisers (180 mm, T8+ 152/155 mm)<br/>Japanese 100 mm guns<br/>German 105 - 150 mm guns
?| Many light cruisers (152 mm)<br/>Most destroyers (120 mm - 150 mm, 100 mm super)+| Light cruisers (152mm) up to and including tier 7<br/>Most destroyers (127 mm - 139 mm)
 |- |-
?| 27 mm || Some tier 8-10 cruiser bow/stern +| 27 mm || Tier 8 and 9 cruiser decks, some tier 8 - 10 cruiser bow/stern (USN and German heavy cruisers)
?| 165 mm || 124 mm || 111 mm || 83 mm+| Heavy cruisers (203 mm)<br/>Light cruisers (180 mm, T8+ 152/155 mm)<br/>Japanese 100 mm guns<br/>German 128 - 150 mm guns
?| Most light cruisers (152 mm, 155 mm)<br/>Most destroyers (127 mm - 150 mm, 100 mm super)+| Light cruisers (152mm) up to and including tier 7<br/>Some destroyers (130 mm - 139 mm, 100 mm super)
 |- |-
?| 30 mm || Some tier 8-10 cruiser plating+| 30 mm || Most tier 10 cruiser deck plating, most tier 10 heavy cruiser side plating, ''[[Ägir]]'', ''[[Siegfried]]'', ''[[Albemarle]]'' and ''[[Drake]]'' deck plating
?| 183 mm || 142 mm || 123 mm || 95 mm+| Heavy cruisers (203 mm)<br/>Light cruisers (180 mm, T8+ 152/155 mm)<br/>Japanese 100 mm guns<br/>German 128 - 150 mm guns
?| Most light cruisers (152 mm, 155 mm, 180 mm)<br/>Some Japanese destroyers/secondaries (100 mm super)+| Tier 7 and lower light cruisers (152 mm, 155 mm)
 |- |-
?| 32 mm || Tier 8-10 battleship bow/stern +| 32 mm || Tier 8 - 10 battleship bow/stern, tier 8 - 10 British and French battleships' casemate plating, ''[[Slava]]'' deck plating
?| 195 mm || 148 mm || 131 mm || 99 mm+| Heavy cruisers (203 mm)<br/>German 128 - 150 mm guns (both main and secondary)
?| Most light cruisers (152 mm, 155 mm, 180 mm)<br/>Some Japanese destroyers/secondaries (100 mm super)+| Most light cruisers (152 mm, 155 mm, 180 mm)<br/>Japanese 100 mm guns
 |- |-
?| 50 mm || ''[[Khabarovsk]]'' belt<br/>''[[Moskva]]'' plating<br/>''[[Großer Kurfürst]]'' deck +| 38 mm || Tier 8 - 10 USN battleship decks
?| 303 mm || 232 mm || 203 mm || 155 mm+| Henri IV (240 mm) <br/> Goliath (234 mm)<br/>Superheavy cruisers (305 - 310 mm)<br/>All german cruisers<br/>German 150 mm guns
?| ''Henri IV'' (240 mm)+| All non-German 203 mm ships, and ''[[Mogami]]''. Not worth it on 203mm guns, since you lose a lot fire chance just to penetrate this category of armor.
 +|-
 +| 50 mm || ''[[Khabarovsk]]'' belt<br/>''[[Moskva]]'', ''[[Ship:Stalingrad|Stalingrad]]'' and ''[[Petropavlovsk]]'' casemate plating<br/>Tier 7 - 10 German battleships' decks
 +| German 203 mm (Hindenburg, Roon, Hipper, Yorck)<br/>Superheavy cruisers (305 - 310 mm)
 +| ''Henri IV'' (240 mm) (not worth it, considering how much fire chance you lose)
 +|-
 +|-
 +| 60 mm || ''[[Sovetsky Soyuz]]'', ''[[AL Sov. Rossiya]]'' and ''[[Kremlin]]'' deck
 +| Only battleship calibre HE can penetrate their deck armor
 +| German 203 mm (Hindenburg, Roon, Hipper, Yorck)<br/>Superheavy cruisers (305 - 310 mm), but it's not worth speccing into IFHE considering how much fire chance you lose
 |} |}
  
Line 48:Line 218:
 ! Without IFHE !! With IFHE ! Without IFHE !! With IFHE
 |- |-
?| 152 mm<br/>100 mm super || Most light cruisers<br/>Some Japanese destroyers/secondaries|| 24 mm || 32 mm || Tier 8-10 battleship bow/stern +| Tier 8 - 10 152 mm<br/>180 mm<br/>Japanese 100 mm || Most light cruisers<br/>Some Japanese destroyers/secondaries|| 30 mm || 32 mm || Tier 8 - 10 battleship bow/stern, tier 8 - 10 British and French battleships' casemate plating, ''[[Slava]]'' deck plating
 |- |-
?| 419-420 mm super || ''Conqueror'', ''Friedrich der Große'', ''Großer Kurfürst'', ''Lion'' || 104 mm || 136 mm || Citadels: ''Cleveland'', ''Edinburgh'', ''Fiji'', ''Helena'', ''New Orleans'', ''Worcester''+| 419-420 mm with improved HE penetration || ''Conqueror'', ''Friedrich der Große'', ''Großer Kurfürst'', ''Lion'' || 104 mm || 136 mm || Citadels: ''Cleveland'', ''Edinburgh'', ''Fiji'', ''Helena'', ''New Orleans'', ''Worcester''
 +|-
 +| 456 mm with improved HE penetration || ''Thunderer'' || 114 mm || 142 mm || Citadels: ''Cleveland'', ''Edinburgh'', ''Fiji'', ''Helena'', ''New Orleans'', ''Worcester'', ''Audacious''
 |} |}
  
 === Notes === === Notes ===
  
?* As can be seen, 152 mm and 155 mm normal HE, primarily found on light cruisers; and 100 mm super HE, found on Japanese gunboat destroyers, are by far the biggest beneficiaries.+* As per the tables above, 152 mm and 155 mm HE, primarily found on light cruisers; and 100 mm HE, found on Japanese gunboat destroyers and some secondary batteries, are by far the biggest beneficiaries.
?* ''Henri IV'' is a niche use, but considered in some scenarios.+* 180 mm HE benefits less from IFHE because of a more drastic relative reduction in fire chance for not much gain in both absolute and impactful damage output
?* Secondary weapons can also benefit from IFHE, particularly German secondaries that follow the 1/4 penetration rule (All 150mm and 128mm German secondaries and the 105mm German secondaries of ''Friedrich Der Große''). For instance, the 128mm secondary guns of ''Großer Kurfürst'' and ''Gneisenau'' can penetrate 30mm of armor without IFHE, and 32mm with.+* The only secondary weapons that may benefit from IFHE are German 105 mm secondaries with 26 mm base penetration, however, they give up a lot of fire chance for the ability to penetrate up to and including 32 mm plating, which is most of the time not worth it
?* Some other ships gain some benefit, but this is not generally considered worth the cost in skill points.+* Some other ships gain some benefit, but this is not generally considered worth the cost in skill points and the tradeoff in fire starting capabilities.
  
 == AP overmatch == == AP overmatch ==
Line 71:Line 243:
 | 10 mm || 144 mm  | 10 mm || 144 mm
 | Tier 4-5 cruiser superstructure<br/>Tier 4-5 destroyer plating | Tier 4-5 cruiser superstructure<br/>Tier 4-5 destroyer plating
?| Will bounce most destroyer shells if sufficiently angled, but not most light cruiser shells.+| Will bounce most destroyer (except German 150mm guns) shells if sufficiently angled, but not most light cruiser shells.
 |- |-
 | 13 mm || 186 mm | 13 mm || 186 mm
?| Tier 4-5 battleship superstructure<br/>Most tier 6-7 cruiser superstructure+| Tier 4 - 5 battleship superstructure<br/>Tier 4 and 5 cruiser bow/stern<br/>Most tier 6 - 7 cruiser superstructure<br/>Tier 8 - 10 and Super destroyer superstructure plating
?| Will bounce light cruiser shells if sufficiently angled but not heavy cruiser shells (203 mm).+| Will bounce light cruiser shells if sufficiently angled but not heavy cruiser shells (203 mm and larger).
 |- |-
 | 16 mm || 229 mm | 16 mm || 229 mm
?| Tier 3 battleship bow/stern<br/>Tier 6-7 battleship superstructure<br/>Most tier 6-7 cruiser bow/stern<br/>Tier 6-7 destroyer plating+| Tier 3 battleship bow/stern<br/>Tier 6 - 7 battleship superstructure<br/>Most tier 6 - 7 cruiser bow/stern<br/>The entirety of British light cruiser and ''[[Smolensk]]'' hull plating<br/>Tier 6 - 7 destroyer plating
?| Will bounce almost all cruiser shells if sufficiently angled.<br/>Notable: Can bounce ''Moskva'' (220 mm) but not ''[[Henri IV]]'' (240 mm), ''[[Graf Spee]]'' or ''[[Scharnhorst]]'' (283 mm).+| Will bounce almost all cruiser shells if sufficiently angled.<br/>Notable: Can bounce ''[[Moskva]]'' (220 mm) but not ''[[Goliath]]'' (234 mm), ''[[Henri IV]]'' (240 mm), ''[[Graf Spee]]'', ''[[Scharnhorst]]'' or ''[[Gouden Leeuw]]'' (283 mm).
 |- |-
 | 19 mm || 272 mm | 19 mm || 272 mm
?| Tier 4-5 battleship bow/stern<br/>Tier 8-10 battleship superstructure<br/>Tier 8-10 destroyer plating +| Tier 4 - 5 battleship bow/stern<br/>Tier 6 - 7 light cruiser side plating<br/>Tier 8 - 10 and Super battleship and cruiser superstructure<br/>Tier 8 - 10 and Super destroyer plating<br/>Tier 8, 10 and Super aircraft carrier bow/stern plating
?| Will bounce up to 10-inch shells (254 mm) if sufficiently angled.<br/>Notable: Can bounce ''Henri IV'' (240 mm), but not ''Graf Spee'', ''Scharnhorst'' (283 mm), ''Kronshtadt'' (305 mm).+| Will bounce up to 254 mm AP if sufficiently angled.<br/>Notable: Can bounce ''Henri IV'' (240 mm), but not ''Graf Spee'', ''Scharnhorst'', ''Gouden Leeuw'' (283 mm) and other battlecruiser AP shells (305 - 330 mm).
 |- |-
 | 25 mm || 358 mm | 25 mm || 358 mm
?| Tier 6-7 battleship bow/stern<br/>Some tier 8-10 cruiser bow/stern +| Tier 6 and 7 cruisers' decks; the bow/stern plating of ''[[Yorck]]'', ''[[Pensacola]]'', ''[[New Orleans]]'' and ''[[Florida]]''; most tier 8 - 10 and Super cruisers' bow/stern plating, tier 8 - 10 light cruisers' side plating; bow/stern plating of ''[[Mackensen]]'', ''[[Prinz Heinrich]]'', ''[[Borodino]]'', ''[[Constellation]]'', ''[[Slava]]'' and ''[[Incomparable]]''
 +| Will bounce up to 14-inch shells (356 mm) if sufficiently angled.
 +|-
 +| 26 mm || 372 mm
 +| Tier 6 and 7 battleship bow/stern and some of their casemate plating
 | Will bounce up to 14-inch shells (356 mm) if sufficiently angled. | Will bounce up to 14-inch shells (356 mm) if sufficiently angled.
 |- |-
 | 27 mm || 387 mm | 27 mm || 387 mm
?| Some tier 8-10 cruiser bow/stern +| Tier 8 and 9 cruiser decks, some tier 8 - 10 cruiser bow/stern (USN and German heavy cruisers); parts of ''[[Zieten]]'', ''[[Prinz Rupprecht]]'' and ''[[Schlieffen]]'' bow/stern plating.
?| Will bounce up to 15-inch shells (380 mm) if sufficiently angled.+| Will bounce up to 15-inch shells (381 mm) if sufficiently angled.
 |- |-
 | 30 mm || 430 mm | 30 mm || 430 mm
?| Some tier 8-10 cruiser plating+| Most tier 10 and Super cruiser deck plating, most tier 10 and Super heavy cruiser side plating, ''[[Ägir]]'', ''[[Siegfried]]'', ''[[Albemarle]]'', ''[[Cheshire]]'', ''[[Drake]]'', ''[[Haarlem]]'' and ''[[Johan de Witt]]'' deck plating.
?| At current only ''[[Republique]]'' (431mm), ''[[Conqueror]]'' with larger-caliber option (457 mm), ''[[Musashi]]'' and ''[[Yamato]]'' (460 mm) can overmatch.+| At the moment, ''[[République]]'' (431 mm), ''[[Thunderer]]'' (457 mm), ''[[Georgia]]'' (457 mm), ''[[Vermont]]'' (457 mm), ''[[Ohio]]'' (457 mm), ''[[Kremlin]]'' (457 mm), ''[[Preussen]]'' (457 mm), ''[[Adatara]]'' (457 mm), ''[[Bungo]]'' (457 mm), ''[[Tsurugi]]'' (457 mm), ''[[Ruggiero di Lauria]]'' (457 mm), ''[[Sun Yat-Sen]]'' (457 mm), ''[[Musashi]]'' (460 mm), ''[[Yamato]]'' (460 mm), super battleship ''[[Hannover]]'' (483 mm), ''[[Incomparable]]'' (508 mm), super battleship ''[[Satsuma]]'' and ''[[Shikishima]]'' (both 510 mm) can overmatch.
 |- |-
 | 32 mm || 458 mm | 32 mm || 458 mm
?| Tier 8-10 battleship bow/stern +| Tier 8-10 and Super battleship bow/stern, tier 8 - 10 and Super British and French battleships' casemate plating, ''[[Slava]]'' deck plating
?| At current only ''Yamato'' and ''Musashi'' (both 460 mm) can overmatch.+| At the moment, ''[[Musashi]]'', ''[[Yamato]]'' (both 460 mm), ''[[Hannover]]'' (483 mm), ''[[Incomparable]]'' (508 mm), ''[[Satsuma]]'' and ''[[Shikishima]]'' (both 510 mm) can overmatch.
 +|-
 +| 35 mm || 500 mm
 +| Tier 9 ''[[Riga]]'' deck plating, tier 6 ''[[Fuso]]'' deck plating
 +| At the moment, ''[[Incomparable]]'' (508 mm), ''[[Satsuma]]'' and ''[[Shikishima]]'' (both 510 mm) can overmatch.
 |} |}
 +
 +== Notes ==
 +<references />
 +
 +* [https://worldofwarships.eu/en/news/game-updates/update-092-european-destroyers/#ifhe-changes Changes to the Inertia Fuse for HE Shells Skill] (Update 0.9.2).
 +
 +* The formula for fire chance can be found in [[Ship:Fire|Fires]].
 +
 +* [https://forum.worldofwarships.com/topic/213359-ifhe-all-night-long/ IFHE All Night Long] by LittleWhiteMouse.
 +
 +
 +<noinclude>[[Category:Rules pages]]</noinclude>

Latest revision as of 09:16, 2 March 2024

HE penetration

Here are some common armor thicknesses and the minimum HE shell diameters needed to penetrate them, according to the HE penetration formula.

1/6, 1/5 and 1/4 are the HE shells' penetration coefficients.

Armor thickness (mm) Occurrences
(non-exhaustive) 		HE shell diameter needed to penetrate (mm)
1/6 1/6 with IFHE 1/5 1/5 with IFHE 1/4 1/4 with IFHE
13 Low-tier destroyer plating 75 63 62.5 52.5 50 42
16 Tier 3 battleship bow/stern
Tier 6 - 7 battleship superstructure
Most tier 6 - 7 cruiser bow/stern
The entirety of British light cruiser and Smolensk hull plating
Tier 6 - 7 destroyer plating 		93 75 77.5 62.5 62 50
19 Tier 4 - 5 battleship bow/stern
Tier 6 - 7 light cruiser side plating
Tier 8 - 10 battleship superstructure
Tier 8 - 10 destroyer plating 		111 93 92.5 77.5 74 62
20 Tier 6 and 7 cruisers' decks
Most tier 8 - 10 cruisers' bow/stern
Tier 8 - 10 light cruisers' side plating 		117 93 97.5 77.5 78 62
25 Tier 6 and 7 cruisers' decks
Most tier 8 - 10 cruisers' bow/stern
Tier 8 - 10 light cruisers' side plating
Audacious bow/stern 		147 117 122.5 97.5 98 78
26 Tier 6 and 7 battleship bow/stern and some of their casemate plating 153 123 127.5 102.5 102 82
27 Tier 8 and 9 cruiser decks, some tier 8 - 10 cruiser bow/stern (USN and German heavy cruisers) 159 129 132.5 107.5 106 86
30 Most tier 10 cruiser deck plating, most tier 10 heavy cruiser side plating, Ägir, Siegfried, Albemarle and Drake deck plating 177 141 147.5 117.5 118 94
32 Tier 8 - 10 battleship bow/stern, tier 8 - 10 British and French battleships' casemate plating, Slava deck plating 189 153 157.5 127.5 126 102
38 Tier 8 - 10 USN battleship decks 225 183 187.5 152.5 150 122
40 Petropavlovsk, Vladivostok casemate plating 237 189 197.5 157.5 158 126
50 Khabarovsk, Delny, Zorkiy belt
Moskva, Stalingrad, casemate plating
Tier 7 - 11 (Hannover) German battleships' decks , Cristoforo Colombo deck armor

Petropavlovsk Front end armor belt, Admiral Nakhimov, Manfred von Richthofen Flight deck armor

297 237 247.5 197.5 198 158
51 Default penetration of Hindenburg , Vermont Deck & Aux armor 303 243 252.5 202.5 202 162
60 Sovetsky Soyuz, AL Sov. Rossiya and Kremlin deck 357 285 297.5 237.5 238 190
114 Audacious citadel armor
(Currently only Thunderer and Hannover can penetrate) 		684 547 570 456 456 366

HE penetration (before Update 0.9.2)

OLD INFORMATION AS PER UPDATE 0.9.2. NEW INFORMATION IS UNDER CONSTRUCTION. THE UPDATE IS QUITE COMPLEX, SOME TIME IS NEEDED TO PROCESS ALL CHANGES.

Here are some common armor thicknesses and the minimum HE shell diameters needed to penetrate them, according to the HE penetration formula. "Super" refers to the 1/4 HE penetration coefficient.

By armor thickness

Armor thickness Occurrences
(non-exhaustive) 		Beneficiaries (without IFHE)
(non-exhaustive) 		Beneficiaries (with IFHE)
(non-exhaustive)
16 mm Tier 3 battleship bow/stern
Tier 6 - 7 battleship superstructure
Most tier 6 - 7 cruiser bow/stern
The entirety of British light cruiser and Smolensk hull plating
Tier 6 - 7 destroyer plating 		All guns of 114 mm or more calibre
19 mm Tier 4 - 5 battleship bow/stern
Tier 6 - 7 light cruiser side plating
Tier 8 - 10 battleship superstructure
Tier 8 - 10 destroyer plating 		All guns of 114 mm or more calibre
25 mm Tier 6 and 7 cruisers' decks, most tier 8 - 10 cruisers' bow/stern, tier 8 - 10 light cruisers' side plating Heavy cruisers (203mm)
Light cruisers (155mm)
Japanese 100 mm guns
German 105 mm secondary guns 		Most destroyers (120 mm - 150 mm)
26 mm Tier 6 and 7 battleship bow/stern and some of their casemate plating Heavy cruisers (203 mm)
Light cruisers (180 mm, T8+ 152/155 mm)
Japanese 100 mm guns
German 105 - 150 mm guns 		Light cruisers (152mm) up to and including tier 7
Most destroyers (127 mm - 139 mm)
27 mm Tier 8 and 9 cruiser decks, some tier 8 - 10 cruiser bow/stern (USN and German heavy cruisers) Heavy cruisers (203 mm)
Light cruisers (180 mm, T8+ 152/155 mm)
Japanese 100 mm guns
German 128 - 150 mm guns 		Light cruisers (152mm) up to and including tier 7
Some destroyers (130 mm - 139 mm, 100 mm super)
30 mm Most tier 10 cruiser deck plating, most tier 10 heavy cruiser side plating, Ägir, Siegfried, Albemarle and Drake deck plating Heavy cruisers (203 mm)
Light cruisers (180 mm, T8+ 152/155 mm)
Japanese 100 mm guns
German 128 - 150 mm guns 		Tier 7 and lower light cruisers (152 mm, 155 mm)
32 mm Tier 8 - 10 battleship bow/stern, tier 8 - 10 British and French battleships' casemate plating, Slava deck plating Heavy cruisers (203 mm)
German 128 - 150 mm guns (both main and secondary) 		Most light cruisers (152 mm, 155 mm, 180 mm)
Japanese 100 mm guns
38 mm Tier 8 - 10 USN battleship decks Henri IV (240 mm)
Goliath (234 mm)
Superheavy cruisers (305 - 310 mm)
All german cruisers
German 150 mm guns 		All non-German 203 mm ships, and Mogami. Not worth it on 203mm guns, since you lose a lot fire chance just to penetrate this category of armor.
50 mm Khabarovsk belt
Moskva, Stalingrad and Petropavlovsk casemate plating
Tier 7 - 10 German battleships' decks 		German 203 mm (Hindenburg, Roon, Hipper, Yorck)
Superheavy cruisers (305 - 310 mm) 		Henri IV (240 mm) (not worth it, considering how much fire chance you lose)
60 mm Sovetsky Soyuz, AL Sov. Rossiya and Kremlin deck Only battleship calibre HE can penetrate their deck armor German 203 mm (Hindenburg, Roon, Hipper, Yorck)
Superheavy cruisers (305 - 310 mm), but it's not worth speccing into IFHE considering how much fire chance you lose

By HE diameter

HE shell Occurrences
(non-exhaustive) 		Maximum armor thickness penetrated IFHE beneficial against
(non-exhaustive)
Without IFHE With IFHE
Tier 8 - 10 152 mm
180 mm
Japanese 100 mm 		Most light cruisers
Some Japanese destroyers/secondaries		 30 mm 32 mm Tier 8 - 10 battleship bow/stern, tier 8 - 10 British and French battleships' casemate plating, Slava deck plating
419-420 mm with improved HE penetration Conqueror, Friedrich der Große, Großer Kurfürst, Lion 104 mm 136 mm Citadels: Cleveland, Edinburgh, Fiji, Helena, New Orleans, Worcester
456 mm with improved HE penetration Thunderer 114 mm 142 mm Citadels: Cleveland, Edinburgh, Fiji, Helena, New Orleans, Worcester, Audacious

Notes

  • As per the tables above, 152 mm and 155 mm HE, primarily found on light cruisers; and 100 mm HE, found on Japanese gunboat destroyers and some secondary batteries, are by far the biggest beneficiaries.
  • 180 mm HE benefits less from IFHE because of a more drastic relative reduction in fire chance for not much gain in both absolute and impactful damage output
  • The only secondary weapons that may benefit from IFHE are German 105 mm secondaries with 26 mm base penetration, however, they give up a lot of fire chance for the ability to penetrate up to and including 32 mm plating, which is most of the time not worth it
  • Some other ships gain some benefit, but this is not generally considered worth the cost in skill points and the tradeoff in fire starting capabilities.

AP overmatch

An AP shell whose diameter is greater than 14.3 times the thickness of an armor plate will overmatch and pass through it regardless of angle. Here are some thresholds where this occurs, which determines whether it is feasible to "bow-tank" a particular AP shell.

Armor thickness AP shell diameter
needed to overmatch 		Occurrences
(non-exhaustive) 		Notes
10 mm 144 mm Tier 4-5 cruiser superstructure
Tier 4-5 destroyer plating 		Will bounce most destroyer (except German 150mm guns) shells if sufficiently angled, but not most light cruiser shells.
13 mm 186 mm Tier 4 - 5 battleship superstructure
Tier 4 and 5 cruiser bow/stern
Most tier 6 - 7 cruiser superstructure
Tier 8 - 10 and Super destroyer superstructure plating 		Will bounce light cruiser shells if sufficiently angled but not heavy cruiser shells (203 mm and larger).
16 mm 229 mm Tier 3 battleship bow/stern
Tier 6 - 7 battleship superstructure
Most tier 6 - 7 cruiser bow/stern
The entirety of British light cruiser and Smolensk hull plating
Tier 6 - 7 destroyer plating 		Will bounce almost all cruiser shells if sufficiently angled.
Notable: Can bounce Moskva (220 mm) but not Goliath (234 mm), Henri IV (240 mm), Graf Spee, Scharnhorst or Gouden Leeuw (283 mm).
19 mm 272 mm Tier 4 - 5 battleship bow/stern
Tier 6 - 7 light cruiser side plating
Tier 8 - 10 and Super battleship and cruiser superstructure
Tier 8 - 10 and Super destroyer plating
Tier 8, 10 and Super aircraft carrier bow/stern plating 		Will bounce up to 254 mm AP if sufficiently angled.
Notable: Can bounce Henri IV (240 mm), but not Graf Spee, Scharnhorst, Gouden Leeuw (283 mm) and other battlecruiser AP shells (305 - 330 mm).
25 mm 358 mm Tier 6 and 7 cruisers' decks; the bow/stern plating of Yorck, Pensacola, New Orleans and Florida; most tier 8 - 10 and Super cruisers' bow/stern plating, tier 8 - 10 light cruisers' side plating; bow/stern plating of Mackensen, Prinz Heinrich, Borodino, Constellation, Slava and Incomparable Will bounce up to 14-inch shells (356 mm) if sufficiently angled.
26 mm 372 mm Tier 6 and 7 battleship bow/stern and some of their casemate plating Will bounce up to 14-inch shells (356 mm) if sufficiently angled.
27 mm 387 mm Tier 8 and 9 cruiser decks, some tier 8 - 10 cruiser bow/stern (USN and German heavy cruisers); parts of Zieten, Prinz Rupprecht and Schlieffen bow/stern plating. Will bounce up to 15-inch shells (381 mm) if sufficiently angled.
30 mm 430 mm Most tier 10 and Super cruiser deck plating, most tier 10 and Super heavy cruiser side plating, Ägir, Siegfried, Albemarle, Cheshire, Drake, Haarlem and Johan de Witt deck plating. At the moment, République (431 mm), Thunderer (457 mm), Georgia (457 mm), Vermont (457 mm), Ohio (457 mm), Kremlin (457 mm), Preussen (457 mm), Adatara (457 mm), Bungo (457 mm), Tsurugi (457 mm), Ruggiero di Lauria (457 mm), Sun Yat-Sen (457 mm), Musashi (460 mm), Yamato (460 mm), super battleship Hannover (483 mm), Incomparable (508 mm), super battleship Satsuma and Shikishima (both 510 mm) can overmatch.
32 mm 458 mm Tier 8-10 and Super battleship bow/stern, tier 8 - 10 and Super British and French battleships' casemate plating, Slava deck plating At the moment, Musashi, Yamato (both 460 mm), Hannover (483 mm), Incomparable (508 mm), Satsuma and Shikishima (both 510 mm) can overmatch.
35 mm 500 mm Tier 9 Riga deck plating, tier 6 Fuso deck plating At the moment, Incomparable (508 mm), Satsuma and Shikishima (both 510 mm) can overmatch.

Notes


  • The formula for fire chance can be found in Fires.
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