GamingDiver / WoWs Legends Ships / Seattle

World of Warships: Legends ship guide

Seattle

Also called: 西雅图 Beta

U.S.A. · Tier VIII · CL Cruiser · Tech Tree: Fire-Starting Light Cruisers

HE fire-spam cruiserGuns farm HE fires and sustained DPM; Surveillance Radar sets cap fights on top.

Playstyle

Hold 12-15 km from a contested cap with an island close enough to break sightline when focus shifts
Avoid: Using radar like a destroyer hunter rather than a position tool

Key characteristics

Radar (9 km)High HE / fire outputHigh AP DPMLobs over islandsSpotter planeWeak torp belt

On this page

Community stats
Playstyle
How to get Seattle
Builds
Cohort position
Stats and specs
Armor
Charts
Exteriors

Community Data

Seattle Community Stats

Log in to GamingDiver and upload your data to see Community Data for Seattle: community win rate, damage, survival, spotting, and your own comparison.

Playstyle

Overview

Seattle is a Tier VIII American light cruiser whose 152mm guns farm HE fires and sustained DPM. Surveillance Radar (9 km) is the cap-control consumable on top, so she sets fights as well as winning them. Both shells run cohort-strong (top-decile AP at 427,119 AP DPM and top-decile HE at 280,678 HE DPM), making her a dual-threat gunship: keep AP up against broadsides and citadels, and switch to HE against bow-in ships, superstructures, and the thin or angled targets AP over-penetrates or bounces off. Standout traits: best fires per minute in T8 CAs (17.1) and best AA reach in T8 CAs (6 km).

Positioning

Hold 12-15 km from a contested cap with an island close enough to break sightline when focus shifts. Push the radar forward only once the destroyer fight is yours; burning the drop to fish for a lone DD kill leaves the next push with no answer to smoke or vision. Your guns lose penetration at range, so aim AP at broadsides you can still citadel and put HE into superstructures and upper-hull sections, rather than the bow-in or belt armor your shells bounce and shatter on.

Potato Avoidance

Using radar like a destroyer hunter rather than a position tool

The consumable's value is locking down a cap your team can take, not stealing a single salvo on a lone DD. Burn it early to fish for a kill and the next push has no answer to smoke or vision. Yours reaches 9 km for 35 s, which is the whole window your team gets to act on what it shows.

Signature Traits

Surveillance Radar

9 km range, 35 s duration. Detects all enemy ships within a fixed radius regardless of line-of-sight. Controls caps and punishes smoke-firing DDs.

LOBBING BATTERY ↗

High fire pressure · 17.08 fires
AP DPM machine · 427119 AP
HE DPM machine · 280678 HE
High-arc HE shells · 27.09°

Long-reach AA ↗

6 km AA reach, best of T8 CAs.

Weak torp belt ↗

4% torpedo damage reduction, bottom decile of T8 CAs. Torps hit for closer to their printed damage.

Quick-fuse AP ↗

0.01 s AP fuse timer, bottom quartile of T8 CAs. Bursts earlier in the plate; trades belt-citadels for reliable damage against thin targets (cruiser-on-cruiser specialty).

Acquisition

How to get Seattle

Seattle is available in the Fire-Starting Light Cruisers branch of the U.S. Tech Tree for 25,000,000 credits after researching it in the branch. Known module upgrades cost up to 5,000,000 credits.

Show U.S.A. tech-tree branch diagram

U.S. Tech Tree

Seattle sits in the Fire-Starting Light Cruisers branch. The highlighted path shows the local branch context inside the full U.S. tree.

U.S. light cruisers are perfect for starting fires with hails of high-explosive shells thanks to their numerous rapid-firing guns, but they lack torpedoes entirely. Starting from Tier VII, they bring Radar and Sonar together to the battle to detect hidden enemy warships.

Advantages: High rate of fire, Long-duration Radar starting at Tier VII
Disadvantages: Low-velocity shells, Poor protection

5 ships in highlighted branch · scroll to inspect all U.S. lines.

U.S.A.IIIIIIIVVVIVIIVIII

Destroyer

Cruiser

Light cruiser split

Battleship

Alternative battleship

Hybrid battleship

Carrier

Tier IIWickesPASD027 Tier IIIClemsonPASD019 Tier IVFarragutPASD005 Tier VMahanPASD006 Tier VIBensonPASD008 Tier VIIFletcherPASD021 Tier VIIIAllen M. SumnerPASD114 Tier IAlbanyPASC003 Tier IISt. LouisPASC004 Tier IIIPhoenixPASC024 Tier IVOmahaPASC005 Tier VPensacolaPASC012 Tier VINew OrleansPASC014 Tier VIIBaltimorePASC017 Tier VIIIBuffaloPASC109 Tier VDallasPASC206 Tier VIHelenaPASC207 Tier VIIClevelandPASC208 Tier VIIISeattlePASC209 Tier IIIWyomingPASB004 Tier IVNew YorkPASB006 Tier IVNevadaPASB105 Tier VNew MexicoPASB034 Tier VIColoradoPASB008 Tier VIIIowaPASB018 Tier VIIIMainePASB118 Tier VTennesseePASB106 Tier VINorth CarolinaPASB012 Tier VIIKansasPASB108 Tier VIIIMinnesotaPASB109 Tier VIConnecticutPASB207 Tier VIINebraskaPASB208 Tier VIIIDelawarePASB209 Tier IIILangleyPASA004 Tier VRangerPASA006 Tier VIILexingtonPASA012

Builds

Pair with a commander whose unique skill complements her main armament; check the build tool for current recommendations.

Open in Build Tool →

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Cohort position

Hide ▾

Where Seattle sits among Tier VIII CAs (34 ships). Notable standouts are shown first; the rest of the cohort-ranked stats are in the expand below. Acquisition variants (Black Friday, Founders Edition) are counted once with their base ship, not as separate peers.

BestFires per minute17.08 (1/29) BestAA range6 km (1 of 6 tied) Top 10%HE DPM280,678 (2/29) Top 10%AP DPM427,119 (2/34) Top 10%Effective HE DPM (incl. fire)420,686 (2/29) Top 25%Smoke fire bloom6.3 km (9/35) Top 25%Rudder shift8.7 s (9/35) Top 25%Main battery reload5.9 s (8/35) Top 25%Main dispersion138.8 m (9/35) Top 25%AP arming threshold25 mm (7/34) Bottom 25%Hit points43,600 HP (28/35) Bottom 25%Main battery caliber152 mm (28/35) Bottom 25%Main battery range15.34 km (29/35) Bottom 25%HE velocity812 m/s (25/29) Bottom 25%AP fuse timer0.01 s (31/34) Bottom 25%AP pen at 10 km130 mm (30/34) WorstNo secondaries (8 of 35 in cohort) WorstAP velocity762 m/s (1 of 6 tied) WorstNo torpedoes (14 of 35 in cohort) WorstRepair heal rate0.5 %/s (1 of 16 tied)

See 25 mid-pack stats

Not standouts for Seattle -- here's where she sits on every other ranked stat in the cohort. Stats tagged NORM are tied across more than half the cohort, so the value is the cohort default rather than a standout.

Max speed33 kt(23/35) Concealment12.78 km(18/35) Air detection7.67 km(19/35) Turning circle750 m(12/35) Traverse-to-turn ratio6.17 ×(17/35) Sigma2.05(17/35) HE fire chance14%(18/29) AP shell damage3,500(26/34) Acceleration26.6 s(12/35) Engine power125,000 hp(18/35) Turn-speed retention166.7 hp/m(17/35) Displacement17,675 t(10/35) Power-to-weight7.07 hp/t(12/35) AA DPS525(13/35) AA threat1,856(17/35) Flak per wave (expected)1,764(23/35) Max armor152 mm(21/35) Citadel belt102 mm(27/35) Bow armor25 mm(20/35) Stern armor25 mm(21/35) Deck armor51 mm(13/34) NormAP ricochet start45°(25 of 34 tied at this value) NormAP auto-bounce angle60°(24 of 34 tied at this value) NormTurn speed retained81%(32 of 35 tied at this value) NormRepair charges2(33 of 35 tied at this value)

Peers in this cohort

Compare Tier VIII Cruisers

Show all 34 peers

Stats & specs

Customize in the Build Tool →

Survivability

Hit PointsInitial: 41,800 → 43,600

Displacement17,675 t

Hull dimensions

Length x beam at the waterline, with the hull's draft where the client carries one. Ships whose client entry holds only the 260 x 20 m placeholder use a curated real-world figure instead, and any ship we have no trustworthy size for omits this row rather than print the placeholder. Length matters when dodging torpedoes; beam and draft shape how hard the ship is to hit.

202.1 x 20.88 m, draft 7.1 m

Armor range13–152 mm

Plate armor thicknesses13, 16, 25, 27, 32, 40, 51, 63, 89, 102, 127, 152 mm

Armor material/layer entries49

Fire resistance

Does not reduce the damage a burning fire does per second: replay-measured burn ticks run at the full rate on every ship. By elimination it lowers how often hits set you on fire; ignition-rate replay data is consistent with that but too confounded by attacker mix to measure the reduction directly.

40%

Fire duration30 s

Fire damage

Each fire ticks 0.3% of max HP per second for the full 30 s, so one unattended fire burns 9% of the pool (3,924 HP on this ship). 4 fire points can burn at once. Verified against measured burn ticks in replay data.

0.3% of HP per second

Flood duration40 s

Flood damage

A flood ticks 0.25% of max HP per second for the 40 s duration, so one unattended flood costs 10% of the pool (4,360 HP on this ship). Verified against measured flood ticks in replay data.

0.25% of HP per second

Torp Reduction

Reduces torpedo hit damage. Replay data shows no effect on floods: flood ticks run at the full rate and flood frequency does not decline with protection.

Magazine HP

Per-turret powder-magazine HP, a separate pool from the ship's. Penetrating hits wear it down and the turret is likelier to be knocked out as it falls, so a larger pool keeps the guns firing through punishment that silences a peer's.

21,800

Steering gear HP

Durability of the steering gears. As this pool drops, hits are likelier to jam the rudder; unlike most modules the steering can be knocked out and repaired but is never permanently destroyed.

13,100

Effective HP

Base 43,600 HP plus everything Repair Party can restore: 0.5%/s x 28 s = 6,104 HP per charge, x2 charges = 12,208 HP. Ceiling, not a prediction: a charge only restores damage actually taken, and only the regeneratable share of it. Across 1,826 players in our replay corpus the median ship realized about half of this, mostly because half the charges go unspent — when Repair Party IS pressed it returns ~97% of the per-charge figure above. Repair Party is one choice in its slot on this ship, so this applies only if you take it.

55,808

Repairable: penetration50%

Repairable: citadel33%

Repairable: steering gear50%

Main Battery

These main guns are dual-purpose: they also fire at aircraft and feed the AA Defense card.

ModuleArtillery: 12×152 mm

Mounts / barrels4 mounts / 12 barrels

Reload time6.5 s

Firing range (base)13.9 km

Firing range (top fire control)15.3 km

Turret traverse8 °/s

Turret armor178 mm

Turret traverse arcs

How far each mount can train, in degrees to either side of the mount's own facing, read from in-game data. A rear turret with ±150° leaves a 60° blind wedge over the bow; one-sided arcs are wing mounts that cover a single side. The data does not say which way each mount faces, so the arcs are listed per mount without bow/stern angles.

3x ±145°, ±132°

Guns to bear

How far off the bow (or stern) the ship must angle before every main turret can fire: the widest blind wedge among the rear-facing (or forward-facing) mounts, from each mount's trainable arc. Mount facing is inferred from turret stations and verified against known layouts, including Izumo's aft-facing forward turret.

35° off bow / 48° off stern

See the firing-arcs diagram ↓

AP pen max range96 mm

HE fire DPM vs T8 BB108960

Effective HE DPM vs T8 BB352652

Shell Grouping (σ)2.05

Max Horiz Disp

Horizontal dispersion ellipse width at max range, from the verified WoWS dispersion model:

σ_{H} = (\frac{R}{30} \cdot \frac{idealRadius - minRadius}{idealDistance} + minRadius) \cdot 30

= (\frac{15339.5}{30} \cdot \frac{8 - 1.1}{1000} + 1.1) \cdot 30 = 138.8 m

138.8 m at 15.3 km

Max Vert Disp

Vertical dispersion ellipse height at max range:

σ_{V} = σ_{H} \cdot radiusOnMax

= 138.8 \cdot 0.6 = 83.3 m

83.3 m at 15.3 km

Med Horiz Disp

50%-hit horizontal radius:

σ_{H, 50} = σ_{H} \cdot \frac{0.6}{σ}

= 138.8 \cdot \frac{0.6}{2.05} = 40.6 m

40.6 m at 15.3 km

Med Vert Disp

50%-hit vertical radius:

σ_{V, 50} = σ_{V} \cdot \frac{0.6}{σ}

= 83.3 \cdot \frac{0.6}{2.05} = 24.4 m

24.4 m at 15.3 km

Turret turn time

180 degrees / 8 deg/s traverse speed = 22.5 s.

22.5 s

Shells/min

Zero upgrades: 12 broadside guns x 60 / 6.5 s base reload = 110.8. All upgrades (top hull shells + Main Battery Mod. 3 = -10% reload): 12 broadside guns x 60 / 5.9 s all-upgrades reload = 122.

Initial: 110.8 → 122

HE shells

HE Damage2,200 → 2,300

HE Velocity812 m/s

Fire Chance12% → 14%

HE penetration

In-game data: 30 mm = 152 mm caliber / 5.07 (non-standard HE penetration ratio).

30 mm

HE full-salvo alpha

Zero upgrades: 2,200 HE damage x 12 broadside guns = 26,400. All upgrades (top hull shells + Main Battery Mod. 3 = -10% reload): 2,300 HE damage x 12 broadside guns = 27,600.

Initial: 26,400 → 27,600

HE DPM

Zero upgrades: 26,400 HE full-salvo alpha x 60 / 6.5 s base reload = 243,692. All upgrades (top hull shells + Main Battery Mod. 3 = -10% reload): 27,600 HE full-salvo alpha x 60 / 5.9 s all-upgrades reload = 280,678.

Initial: 243,692 → 280,678

Fires/min

Zero upgrades: 110.8 shells/min x 14% fire chance = 15.51. All upgrades (top hull shells + Main Battery Mod. 3 = -10% reload): 122 shells/min x 14% fire chance = 17.08.

Initial: 15.51 → 17.08

AP shells

AP Damage3,200 → 3,500

AP Velocity762 m/s

Min Ricochet45 deg

Guaranteed Ricochet60 deg

Fuse Timer0.01 s

Fuse Threshold25 mm

AP overmatch

floor(152 mm caliber / 14.3) = 10 mm (AP auto-penetrates plating this thick or less).

10 mm

AP Pen Close

Canonical community AP formula (jcw780/wows_shell), evaluated at muzzle velocity:

P = 10^{- 7} \cdot K \cdot m^{0.69} \cdot d^{- 1.07} \cdot v_{0}^{1.38}

= 10^{- 7} \cdot 2445 \cdot 59^{0.69} \cdot {0.152}^{- 1.07} \cdot 762^{1.38} = 290.2 mm

. Matches the in-game spec card.

290.2 mm point-blank

AP Pen Far

Same formula at the ship's max firing range (15.3 km), where the shell has slowed to 340.4 m/s:

P = 10^{- 7} \cdot 2445 \cdot 59^{0.69} \cdot {0.152}^{- 1.07} \cdot {340.4}^{1.38} = 95.4 mm

95.4 mm at 15.3 km

AP full-salvo alpha

Zero upgrades: 3,200 AP damage x 12 broadside guns = 38,400. All upgrades (top hull shells + Main Battery Mod. 3 = -10% reload): 3,500 AP damage x 12 broadside guns = 42,000.

Initial: 38,400 → 42,000

AP DPM

Zero upgrades: 38,400 AP full-salvo alpha x 60 / 6.5 s base reload = 354,462. All upgrades (top hull shells + Main Battery Mod. 3 = -10% reload): 42,000 AP full-salvo alpha x 60 / 5.9 s all-upgrades reload = 427,119.

Initial: 354,462 → 427,119

AP AOE Radius

AP shell over-penetration splash radius; scales with shell mass. Wickes 102mm = 3, standard 152mm CL ~ 20, Iowa 406mm ~ 270, Yamato 460mm = 400, Incomparable 650mm = 550 (max). Larger value = bigger splash damage area when AP over-pens.

AA Defense

AA mount pointsInitial: 30 → 36

Maximum AA range

Longest-reaching family on the in-game AA card. Base AirDefense aura max range is 3.5 km; dual-purpose mount auras extend it.

6 km

40 mm Bofors Mk2Initial: 40 mm Bofors Mk1 (12×2) → 40 mm Bofors Mk2 (12×4)

20 mm Oerlikon Mk4Initial: 18×1 → 24×1 20mm

Gunsmain battery (DP)

Continuous DPS

Effective DPS in in-game units (raw aura damage × 3.5 × hit probability, summed per contributing aura) - matches the Close-range AA DPS headline's currency. Includes 94 from dual-purpose main battery firing as AA in this range band.

Range6 km

Guns40 mm Bofors Mk2

Continuous DPS

Effective DPS: 90 raw aura damage × 3.5 × 0.9 hit probability = 284 - the same in-game units as the Close-range AA DPS headline.

Initial: 205 → 284

Range3.5 km

Total DPS in Aura

Far 94 + Medium 284 = 378

378

Guns20 mm Oerlikon Mk4

Continuous DPS

Effective DPS: 49 raw aura damage × 3.5 × 0.85 hit probability = 146 - the same in-game units as the Close-range AA DPS headline.

Initial: 110 → 146

Range2 km

Total DPS in Aura

Far 94 + Medium 284 + Near 146 = 524

524

Bursts

Each ~2 s wave fires 3 quick salvos of 2 clouds ahead of the attacking squadron, plus 1 stray cloud farther out that appear off-beat between waves - up to 7 clouds per wave × 280 damage each. Planes that fly into a cloud take its damage; clouds dissipate before the next wave lands. Defensive AA Fire, where fitted, multiplies the salvo repeats within each wave.

3 salvos × 2 clouds + 1 outer

Cloud damage

Damage a plane takes for flying into one flak cloud, before any reductions.

280

Cloud spawn chance

Each cloud in the pattern rolls this chance to spawn, so waves average fewer clouds than the maximum. Often called flak 'hit chance', but spawned clouds always damage planes that fly into them - the roll is on spawning.

90%

Wave rate

A flak wave spawns roughly every 2 s - timed frame-by-frame from gameplay footage and consistent across ships.

every ~2 s

Fired by

Flak keeps firing while at least one main battery mount is operational - even losing every other AA mount does not stop it.

Main battery

Flak zone

The activation band: flak fires while attacking planes are inside it. Clouds are placed ahead of the planes' path, so bursts can land short of 2.5 km or past 6 km - once planes get inside the band, new waves stop. AA range bonuses push the outer edge out; the 2.5 km inner edge does not move.

2.5-6 km

See the AA layers diagram ↓

Maneuverability

Engine power125,000 hp

Maximum speed33 kt

Turning circle radius750 m

Rudder shift time8.7 s

Engine power-boost threshold7 kt

Engine spool-up time15.3 s

Reverse spool-up time7.7 s

Reverse speed

top speed / 4 + 4.9 = 33 / 4 + 4.9 = 13.2 kt. The community reverse-speed model from the WoWs ShipBuilder project, the same source as the acceleration model on this card. Base value; speed modifiers scale it. Not shown on the in-game card.

13.2 kt

Crash stop

Seconds from top speed to a dead stop after ordering full reverse: reverse power winds in over the reverse spool-up while water drag does most of the braking. Same community-model simulation as the acceleration times, using the ship's own reverse-power ratio from in-game data. The full curve is on the acceleration chart.

27.6 s

Engine boost threshold (reverse)

Speed below which the engine's built-in power boost applies in reverse. Matches the in-game maneuverability card's reverse threshold (Vampire II reads 10.5 here and the card shows 11; the card rounds half up).

11.6 kt

Acceleration 0-90%

Time to reach 90% of top speed (29.7 kt of 33 kt), from our in-house acceleration model.

26.6 s

Acceleration 0-99%

Time to reach 99% of top speed (32.7 kt of 33 kt). 99% rather than 100% because true top speed is asymptotic (thrust meets drag), so the last fraction of a knot is never quite gained.

43.6 s

Traverse-to-turn ratio

How many degrees the turret can swing for each degree the hull turns. Turn rate

ω_{hull} = \frac{180}{π} \cdot \frac{V_{max} (m/s)}{R_{turn}} = \frac{180}{π} \cdot \frac{33.0 \cdot 0.5144}{750} = 1.30 ° / s

, so

ratio = \frac{ω_{turret}}{ω_{hull}} = \frac{8}{1.30} = 6.2 \times

. Below 5 the turrets drag in a turning fight; 25+ keeps up with any rudder.

6.2× slow

See the full acceleration curve ↓

Concealment

Detectability by sea12.78 km

Detectability by air7.67 km

Smoke firing penalty6.3 km

Detect when firing (sea)

Equal to the ship's main battery range (never below base detectability): firing makes you visible to everyone you can reach. Matches the in-game 'Detect Firing Sea' value on all 8 unmodified captures, and range-modified captures track the modified range.

15.34 km

Detect when firing (air)

Air detectability plus the gun-firing bloom (3.04 km, which tracks main-battery caliber x 0.020). Matches the in-game 'Detect Firing Air' value on every captured ship.

10.71 km

Detect when on fire (sea)

Base sea detectability + 2.0 km while burning; matches the in-game 'Detect Fire Sea' value on every captured ship.

14.78 km

Detect when on fire (air)

Base air detectability + 3.0 km while burning; matches the in-game 'Detect Fire Air' value on every captured ship.

10.67 km

Guaranteed Detect2 km

✦

Consumables

Damage Control Party∞ charges · 60 s reload · 5 s active

Choose one

Sonar2 charges · 180 s reload · 98 s active · 4.68 km ship detect
ƒ
Derived from the consumable's 30 m grid-unit range (km = grid units x 30 / 1000): $\frac{156 \times 30}{1000} = 4.68 km$
· 3.27 km torpedo detect
ƒ
Derived from the consumable's 30 m grid-unit range (km = grid units x 30 / 1000): $\frac{109 \times 30}{1000} = 3.27 km$

Defensive AA Fire3 charges · 140 s reload · 25 s active · ×2 flak burst boost
ƒ
Repeats the flak burst pattern ×2 within each wave - more clouds in the air over the wave, at the same spots.

Surveillance Radar2 charges · 150 s reload · 35 s active · 9 km radar range
ƒ
Derived from the consumable's 30 m grid-unit range (km = grid units x 30 / 1000): $\frac{300 \times 30}{1000} = 9 km$

Choose one

Repair Party2 charges · 80 s reload · 28 s active · 6,104 HP (14% of max HP) total heal (per charge)
ƒ
Heal per second (0.5%) x effective active time (28 s) = up to 14% of max HP restored per charge.
· 12,208 HP (28% of max HP) total heal (all charges)
ƒ
14% per charge x 2 charges = up to 28% of max HP if the whole Repair Party loadout is used.
· 218 HP/s (0.5% of max HP) heal per second
ƒ
0.5% of max HP (43,600 HP) per second = 218 HP/s. WoWS heals a flat percent of MAX HP each second, so this rate holds at any health level.

Catapult Fighter3 charges · 80 s reload · 90 s active · 5 km patrol radius
ƒ
Derived from the consumable's 30 m grid-unit range (km = grid units x 30 / 1000): $\frac{167 \times 30}{1000} = 5 km$
· 1 squadron size

Observation Seaplane3 charges · 200 s reload · 30 s active · 1 squadron size · Tightens main-battery shell grouping

Module options (2)

Stats above use the fully-upgraded modules. These are the research-tree alternatives; trade-offs are flagged.

HullUpgrade

Hit points41,800 → 43,600
Rudder shift15.8 → 11.3 s
AA mounts30 → 36
Close-range AA DPS102 → 139

Fire controlUpgrade

Main battery range13,945 → 15339.5 m

See all derived stats

Show ▾

All values are ship base stats with modifications and upgrade changes denoted inline.

Numbers the spec table cannot show directly: alpha-strike math, DPM, dispersion, AP penetration. Click the formula chip on any row to reveal how it is calculated.

Main battery formulas

Shell Grouping (σ)2.05

Max Horiz Disp138.8 m at 15.3 km

Horizontal dispersion ellipse width at max range, from the verified WoWS dispersion model:  $σ_{H} = (\frac{R}{30} \cdot \frac{idealRadius - minRadius}{idealDistance} + minRadius) \cdot 30$   $= (\frac{15339.5}{30} \cdot \frac{8 - 1.1}{1000} + 1.1) \cdot 30 = 138.8 m$

Shell scatter width @ 5 km67.5 m

Horizontal scatter at a fixed 5 km, from the same verified dispersion model as the rows below - a knife-fight-range anchor comparable across ships.

Shell scatter width @ 10 km102 m

How wide your shells scatter at 10 km, from the same dispersion model as the max-range figure above. Picking a fixed range makes this number directly comparable from ship to ship: max-range dispersion makes a longer-range gun look worse even when it's tighter at any common range. The interactive Dispersion tab on the Charts card plots the full curve from 0 to max range.

Shell scatter width @ 15 km136.5 m

Horizontal scatter at a fixed 15 km, from the same verified dispersion model - the long-range anchor. Only shown when the ship's guns reach 15 km.

Max Vert Disp83.3 m at 15.3 km

Vertical dispersion ellipse height at max range: $σ_{V} = σ_{H} \cdot radiusOnMax$ $= 138.8 \cdot 0.6 = 83.3 m$

Shell scatter height @ 10 km54.1 m

How tall the same scatter ellipse is at 10 km. Comparable from ship to ship for the same reason as the width value above. The height/width ratio is a piecewise-linear curve through three points from the ship's own dispersion data:  $radiusOnZero = 0.2$  at 0 m,  $radiusOnDelim = 0.5$  at  $delim \cdot R_{m a x} = 0.5 \cdot 15339.5 = 7670$  m, and  $radiusOnMax = 0.6$  at 15339.5 m. Above the kink:  $k = 0.5 + (0.6 - 0.5) \cdot \frac{10000 - 7670}{15339.5 - 7670} = 0.5304$ , so  $σ_{V} = σ_{H} \cdot k = 102 \cdot 0.5304 = 54.1 m$ .

Med Horiz Disp40.6 m at 15.3 km

50%-hit horizontal radius: $σ_{H, 50} = σ_{H} \cdot \frac{0.6}{σ}$ $= 138.8 \cdot \frac{0.6}{2.05} = 40.6 m$

Med Vert Disp24.4 m at 15.3 km

50%-hit vertical radius: $σ_{V, 50} = σ_{V} \cdot \frac{0.6}{σ}$ $= 83.3 \cdot \frac{0.6}{2.05} = 24.4 m$

Dispersion familyCruiser Disp.

Standard cruiser dispersion baseline.

AP Pen Close290.2 mm point-blank

Canonical community AP formula (jcw780/wows_shell), evaluated at muzzle velocity:  $P = 10^{- 7} \cdot K \cdot m^{0.69} \cdot d^{- 1.07} \cdot v_{0}^{1.38}$   $= 10^{- 7} \cdot 2445 \cdot 59^{0.69} \cdot {0.152}^{- 1.07} \cdot 762^{1.38} = 290.2 mm$ . Matches the in-game spec card.

AP Pen Far95.4 mm at 15.3 km

Same formula at the ship's max firing range (15.3 km), where the shell has slowed to 340.4 m/s:  $P = 10^{- 7} \cdot 2445 \cdot 59^{0.69} \cdot {0.152}^{- 1.07} \cdot {340.4}^{1.38} = 95.4 mm$ .

AP pen 5 km191 mm

AP penetration at a fixed 5 km, read off the same PC-validated ballistic curve as AP Pen Close/Far: the shell's impact velocity at that range fed through the canonical community AP formula  $P = 10^{- 7} \cdot K \cdot m^{0.69} \cdot d^{- 1.07} \cdot v^{1.38}$ . Fixed anchors make ships directly comparable at the same fighting distance; the Charts card plots the full curve.

AP pen 10 km130 mm

AP penetration at a fixed 10 km, read off the same PC-validated ballistic curve as AP Pen Close/Far: the shell's impact velocity at that range fed through the canonical community AP formula  $P = 10^{- 7} \cdot K \cdot m^{0.69} \cdot d^{- 1.07} \cdot v^{1.38}$ . Fixed anchors make ships directly comparable at the same fighting distance; the Charts card plots the full curve.

AP pen 15 km97 mm

AP penetration at a fixed 15 km, read off the same PC-validated ballistic curve as AP Pen Close/Far: the shell's impact velocity at that range fed through the canonical community AP formula  $P = 10^{- 7} \cdot K \cdot m^{0.69} \cdot d^{- 1.07} \cdot v^{1.38}$ . Fixed anchors make ships directly comparable at the same fighting distance; the Charts card plots the full curve.

AP flight time @ 10 km6.52 s

How long an AP shell takes to reach a target at a fixed 10 km, from the same numerically integrated trajectory the Charts card plots. The shell slows under quadratic air drag,  $a_{drag} = k ρ v^{2}$ , where  $ρ$  is air density from a standard-atmosphere profile and  $k$  bundles the shell's drag coefficient, caliber and mass:  $k = \frac{π C_{d} d^{2}}{8 m} = \frac{π \cdot 0.322 \cdot {0.152}^{2}}{8 \cdot 59} = 4.95 \times 10^{- 5}$ . That runs from a 762 m/s muzzle velocity in 0.02 s steps under gravity 9.8 m/s² until the shell lands, then divides by 2.77: the game clock runs faster than real time, and that factor was measured against stopwatch runs in the Training Room. Lower is better, since a faster shell is harder to dodge and needs less lead.

HE flight time @ 10 km6.44 s

How long an HE shell takes to reach a target at a fixed 10 km, from the same numerically integrated trajectory the Charts card plots. The shell slows under quadratic air drag,  $a_{drag} = k ρ v^{2}$ , where  $ρ$  is air density from a standard-atmosphere profile and  $k$  bundles the shell's drag coefficient, caliber and mass:  $k = \frac{π C_{d} d^{2}}{8 m} = \frac{π \cdot 0.3 \cdot {0.152}^{2}}{8 \cdot 47.6} = 5.72 \times 10^{- 5}$ . That runs from a 812 m/s muzzle velocity in 0.02 s steps under gravity 9.8 m/s² until the shell lands, then divides by 2.77: the game clock runs faster than real time, and that factor was measured against stopwatch runs in the Training Room. Lower is better, since a faster shell is harder to dodge and needs less lead.

HE penetration30 mm

In-game data: 30 mm = 152 mm caliber / 5.07 (non-standard HE penetration ratio).

AP overmatch10 mm

floor(152 mm caliber / 14.3) = 10 mm (AP auto-penetrates plating this thick or less).

AP AOE Radius15

AP shell over-penetration splash radius; scales with shell mass. Wickes 102mm = 3, standard 152mm CL ~ 20, Iowa 406mm ~ 270, Yamato 460mm = 400, Incomparable 650mm = 550 (max). Larger value = bigger splash damage area when AP over-pens.

Broadside guns used for alpha12

All 12 barrels bear on the broadside.

Turret turn time22.5 s

180 degrees / 8 deg/s traverse speed = 22.5 s.

HE full-salvo alphaInitial: 26,400 → 27,600

Zero upgrades: 2,200 HE damage x 12 broadside guns = 26,400. All upgrades (top hull shells + Main Battery Mod. 3 = -10% reload): 2,300 HE damage x 12 broadside guns = 27,600.

AP full-salvo alphaInitial: 38,400 → 42,000

Zero upgrades: 3,200 AP damage x 12 broadside guns = 38,400. All upgrades (top hull shells + Main Battery Mod. 3 = -10% reload): 3,500 AP damage x 12 broadside guns = 42,000.

HE DPMInitial: 243,692 → 280,678

Zero upgrades: 26,400 HE full-salvo alpha x 60 / 6.5 s base reload = 243,692. All upgrades (top hull shells + Main Battery Mod. 3 = -10% reload): 27,600 HE full-salvo alpha x 60 / 5.9 s all-upgrades reload = 280,678.

AP DPMInitial: 354,462 → 427,119

Zero upgrades: 38,400 AP full-salvo alpha x 60 / 6.5 s base reload = 354,462. All upgrades (top hull shells + Main Battery Mod. 3 = -10% reload): 42,000 AP full-salvo alpha x 60 / 5.9 s all-upgrades reload = 427,119.

Shells/minInitial: 110.8 → 122

Zero upgrades: 12 broadside guns x 60 / 6.5 s base reload = 110.8. All upgrades (top hull shells + Main Battery Mod. 3 = -10% reload): 12 broadside guns x 60 / 5.9 s all-upgrades reload = 122.

Fires/minInitial: 15.51 → 17.08

Zero upgrades: 110.8 shells/min x 14% fire chance = 15.51. All upgrades (top hull shells + Main Battery Mod. 3 = -10% reload): 122 shells/min x 14% fire chance = 17.08.

AA defense

AA DPS at max range95

Only families that reach 6 km contribute at the outer edge of the AA bubble. In-game families: 40mm Bofors 12x4 -> 284 DPS @ 3.5 km; 20mm Oerlikon MK4 24x1 -> 146 DPS @ 2 km; Far AA (?) -> 95 DPS @ 6 km.

Maximum AA range6 km

Longest-reaching family on the in-game AA card. Base AirDefense aura max range is 3.5 km; dual-purpose mount auras extend it.

AA DPS layered by range95 DPS @ 6 km, 379 DPS @ 3.5 km, 525 DPS @ 2 km

Cumulative AA DPS at each family range threshold. Inner ranges stack the outer families, so a target closing the distance hits stronger AA bubbles as it crosses each band.

AA DPS at point-blank525

Sum of every family's average DPS, achievable only inside the closest-range family (2 km).

AA threat index1856

SUM over AA auras of (aura DPS x aura range km). A plane crossing the AA bubble is exposed to each aura for a time proportional to that aura's range, so long-reach DPS is worth more than the same DPS in a short bubble. Units: DPS*km; used to rank overall AA threat across the cohort.

Near aura range2 km

Armor Beta

Hull HP 41,800 → 43,600 with hull upgrade, distributed across 5 hull zones, each with its own plate thicknesses, saturation cap, and pen thresholds. HP caps are the exact in-game values, not estimated.

Bow & stern25 mm

Overmatched by 100+ AP guns across the bracket. Can’t reliably bow-tank; gets bow-citadelled and overpenned.

Belt / citadel102 mm

Thin belt: battleship AP citadels straight through it broadside. Rely on angle, speed and concealment, never sit flat.

Farming25 mm

Superstructure and extremities take HE pens and AP overpens from nearly any gun: steady chip damage. Fire resistance 40%, fires burn 30s. Range-by-range in the Compare tool →

Section	Plates	HP cap	Threats	Tactic
Bow	25 mm primary (range 25–40 mm)	2,500 (6% of HP)	Overmatched by 380mm+ AP (Bismarck, Richelieu)Angle bounces 356mm25 mm: HE pens from 150mm+	Bow-tank fits behind this exterior plate. Saturation is FAST here; the cap is often only a few thousand HP.
Hull (midship)	89 mm primary (range 16–89 mm)	32,700 (75% of HP)	No common AP caliber overmatches89 mm: standard HE shatters; improved HE (DE / FR BB) pens from 356mm+	Largest HP pool. Citadel sits behind these plates; thinner deck and side plating absorb the rest.
Stern	25 mm primary (range 25–152 mm)	2,700 (6% of HP)	Overmatched by 380mm+ AP (Bismarck, Richelieu)Angle bounces 356mm25 mm: HE pens from 150mm+	Mirror of bow. Same fast saturation.
Citadel	102 mm primary (range 13–102 mm)	≈ 165,500 (effectively no cap)	Citadel pen: full damageOver-pen: ×0.10 damage	Effectively no cap; citadel pool sits at ~165k HP on every ship. An AP citadel penetration deals the shell's full damage, the biggest single hit available; only over-penetrations are damped, to ×0.10.
Superstructure	25 mm primary (range 25–152 mm)	2,500 (6% of HP)	Any HE ≥16 mm pens at full damage	Any HE ≥16 mm pens at full damage. HE-spam target, and the section saturates fast (often only a few thousand HP).
Turret (module, per magazine)	separate HP pool, does not drain ship HP	21,800 magazine HP	Turret knocked out	Per-turret powder-magazine HP, a separate pool that does not drain ship HP. As it is worn down the turret is likelier to be knocked out, and a smaller pool gets there faster.
AA mount (40 mm mount)	separate HP pool, does not drain ship HP	200 per-mount HP	Destroyed at 0 HP	Per-mount HP for the heaviest AA on this ship. An AA mount destroyed at 0 HP stops shooting down planes for the rest of the battle; DCP does not repair destroyed mounts. HE shells specifically target AA mounts since the small-caliber HP pool falls fast.
Rudder (module)	separate HP pool, does not drain ship HP	13,100 module HP	Incapacitated at 0 HP	When module HP reaches 0 the rudder locks at its current angle until DCP repairs it. Repair via Damage Control Party.

Saturation cap = HP a section can absorb before further damage to it is reduced (the "bow-tank" effect). Citadel pool is ~165k on every ship (effectively no cap); damage is gated by pen/over-pen multipliers instead. Superstructure saturates fast but HE always pens regardless of the plate thickness. Rudder (and other module HPs) are a separate pool from ship HP: damaging a module doesn't drain ship HP. Incapacitated modules like the rudder and engine are restored by DCP, but secondary and AA mounts destroyed at 0 HP stay out for the rest of the battle.

Open in Charting Tool

Ship Charts

Exteriors

Skins & permanent camouflages

Every custom exterior Seattle can equip, from in-game data.

DefaultThe ship’s standard exterior
Stars and Stripes
Stars and Stripes permanent camouflage for SeattleStars and Stripes

Primary official WG sources

Filtered to official World of Warships: Legends pages where this ship is a focus, reward, line member, or high-context variant mention.

2023-03-02 · Patch notes March Update: Seeing Green Patch notes

Seattle

Seattle Community Stats

Seattle Community Stats

Playstyle

Overview

Positioning

Potato Avoidance

Signature Traits →

How to get Seattle

Builds

Cohort position

Peers in this cohort

Stats & specs

See all derived stats

Main battery formulas

AA defense

Armor Beta

Ship Charts

Skins & permanent camouflages

Primary official WG sources

Signature Traits