GamingDiver / WoWs Legends Ships / St. Louis

World of Warships: Legends ship guide

St. Louis

Also called: 圣路易斯 Beta

U.S.A. · Tier II · CL Cruiser · Tech Tree: Early U.S. Cruisers

All-rounder cruiserCompetent at AP citadels, HE pressure, and cap support; adapt to the matchup.

Playstyle

Hold under 10 km with islands tight enough to break vision on demand
Avoid: Firing the moment an enemy appears

Key characteristics

High HE DPMHigh AP DPMHeavy citadel beltHeavy beltAll-Weather

On this page

Community stats
Playstyle
How to get St. Louis
Builds
Cohort position
Stats and specs
Armor
Charts
Balance history
Exteriors

Community Data

St. Louis Community Stats

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

Playstyle

Overview

St. Louis is a Tier II American all-rounder light cruiser with 152mm guns at 11.1 km: no single dominant trait, but competent at AP citadels, HE pressure, and cap support. Adapt to the team comp - DD hunter, BB chip, or cap contester - rather than locking into one role. Standout traits: top-decile heavy citadel belt in T2 CAs (102 mm) and top-decile HE DPM in T2 CAs (126,000).

Positioning

Hold under 10 km with islands tight enough to break vision on demand. The HE pressure rewards a steady firing arc more than rotation play; pick a corner of the map you can hold and work fires from there. 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

Firing the moment an enemy appears

The guns are what reveal you: one salvo lights you up from 9.1 km away, and a battleship that suddenly has a broadside cruiser to shoot at will take the free citadels, which is 27,000 HP back to port in a single salvo. Choose the angle and the cover you will shoot from BEFORE anything spots you, so your first salvo is one you can turn away from rather than one that starts a trade you cannot win.

Signature Traits

ELITE ARMOR ↗

Heavy citadel belt · 102 mm
Heavy belt

HE DPM machine ↗

126000 HE DPM, top decile of T2 CAs. Sustained fire pressure.

All-Weather

No stat falls into the cohort's bottom decile across T2 CAs. Stable baseline in every category, no glaring weakness to play around.

Acquisition

How to get St. Louis

St. Louis is available in the Early U.S. Cruisers branch of the U.S. Tech Tree for 13,000 credits after researching it in the branch. Known module upgrades cost up to 2,600 credits.

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

U.S. Tech Tree

St. Louis sits in the Early U.S. Cruisers branch. The highlighted path shows the local branch context inside the full U.S. tree.

The early U.S. cruisers focus on providing a powerful broadside from their rapid-firing guns, and they are your starting point to the U.S. Tech Trees. From Tier III, you gain access to a useful self-defense tool: Sonar.

Advantages: High rate of fire, Sonar consumable starting at Tier III
Disadvantages: Limited main battery firing angles, Low-velocity shells

3 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

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Where St. Louis sits among Tier II CAs (25 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.

Top 10%HE DPM126,000 (3/25) Top 25%Hit points27,000 HP (6/26) Top 25%AP DPM180,000 (4/25) Top 25%AP velocity853 m/s (7/25) Top 25%HE velocity853 m/s (7/25) Top 25%Citadel belt102 mm (5/26) Bottom 25%HE fire chance7% (21/25) Bottom 25%Secondary HE alpha1,100 (13/16) Bottom 25%Displacement10,850 t (23/26) Bottom 25%AA range1 km (15/17) Bottom 25%Deck armor13 mm (21/26) WorstSecondary HE pen13 mm (1 of 8 tied) WorstSecondary range2.5 km (1 of 7 tied) WorstNo torpedoes (20 of 26 in cohort)

See 31 mid-pack stats

Not standouts for St. Louis -- 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 speed22 kt(17/26) Concealment9.09 km(14/26) Smoke fire bloom3.97 km(13/26) Air detection5.45 km(13/26) Rudder shift6.5 s(15/26) Turning circle450 m(12/26) Traverse-to-turn ratio5.55 ×(12/26) Main battery caliber152 mm(10/26) Main battery range11.1 km(16/26) Main battery reload8 s(13/26) Sigma2(12/26) HE shell damage2,100(13/25) Fires per minute4.2(11/25) Main dispersion109.6 m(11/26) Secondary DPM (per side)118,800(9/16) Acceleration27.9 s(18/26) AP arming threshold25 mm(16/25) Engine power21,000 hp(13/26) Turn-speed retention46.7 hp/m(13/26) Power-to-weight1.94 hp/t(19/26) AP pen at 10 km64 mm(9/25) AA DPS21(11/17) AA threat21(13/17) Max armor102 mm(13/26) NormSecondary fire chance4%(11 of 16 tied at this value) NormAP fuse timer0.03 s(14 of 25 tied at this value) NormAP ricochet start45°(24 of 25 tied at this value) NormAP auto-bounce angle60°(24 of 25 tied at this value) NormTurn speed retained81%(24 of 26 tied at this value) NormBow armor6 mm(24 of 26 tied at this value) NormStern armor6 mm(23 of 26 tied at this value)

Peers in this cohort

Compare Tier II Cruisers

Show all 25 peers

Stats & specs

Customize in the Build Tool →

Survivability

Hit PointsInitial: 25,000 → 27,000

Displacement10,850 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.

129.9 x 20.1 m, draft 6.9 m

Armor range6–102 mm

Plate armor thicknesses6, 10, 13, 38, 51, 76, 102 mm

Armor material/layer entries35

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.

Initial: 0% → 3.3%

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 (2,430 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 (2,700 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.

13,500

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.

8,100

Repairable: penetration50%

Repairable: citadel10%

Repairable: steering gear50%

Main Battery

ModuleArtillery: 152 mm/50 Mk6

Mounts / barrels10 mounts / 10 barrels

Reload timeInitial: 10 s → 8 s

Firing range (base)10.1 km

Firing range (top fire control)11.1 km

Turret traverseInitial: 6 °/s → 8 °/s

Turret armor19 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.

6x 115° arc, 2x ±140°, 2x 120° arc

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.

40° off bow / 40° off stern

Shell Grouping (σ)2

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{11102.3}{30} \cdot \frac{8 - 1.1}{1000} + 1.1) \cdot 30 = 109.6 m

109.6 m at 11.1 km

Max Vert Disp

Vertical dispersion ellipse height at max range:

σ_{V} = σ_{H} \cdot radiusOnMax

= 109.6 \cdot 0.6 = 65.8 m

65.8 m at 11.1 km

Med Horiz Disp

50%-hit horizontal radius:

σ_{H, 50} = σ_{H} \cdot \frac{0.6}{σ}

= 109.6 \cdot \frac{0.6}{2} = 32.9 m

32.9 m at 11.1 km

Med Vert Disp

50%-hit vertical radius:

σ_{V, 50} = σ_{V} \cdot \frac{0.6}{σ}

= 65.8 \cdot \frac{0.6}{2} = 19.7 m

19.7 m at 11.1 km

Turret turn time

180 degrees / 6 deg/s traverse speed = 30 s.

30 s

Shells/min

Zero upgrades: 6 broadside guns x 60 / 10 s base reload = 36. All upgrades (top gun, 8-gun broadside): 8 broadside guns x 60 / 8 s all-upgrades reload = 60.

Initial: 36 → 60

HE shells

HE Damage2,100

HE Velocity853 m/s

Fire Chance7%

HE penetration

25 mm ≈ 152 mm caliber / 6 (standard HE penetration ratio).

25 mm

HE full-salvo alpha

Zero upgrades: 2,100 HE damage x 6 broadside guns = 12,600. All upgrades (top gun, 8-gun broadside): 2,100 HE damage x 8 broadside guns = 16,800.

Initial: 12,600 → 16,800

HE DPM

Zero upgrades: 12,600 HE full-salvo alpha x 60 / 10 s base reload = 75,600. All upgrades (top gun, 8-gun broadside): 16,800 HE full-salvo alpha x 60 / 8 s all-upgrades reload = 126,000.

Initial: 75,600 → 126,000

Fires/min

Zero upgrades: 36 shells/min x 7% fire chance = 2.52. All upgrades (top gun, 8-gun broadside): 60 shells/min x 7% fire chance = 4.2.

Initial: 2.52 → 4.2

AP shells

AP Damage3,000

AP Velocity853 m/s

Min Ricochet45 deg

Guaranteed Ricochet60 deg

Fuse Timer0.025 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 1830 \cdot {47.7}^{0.69} \cdot {0.152}^{- 1.07} \cdot 853^{1.38} = 219.2 mm

. Matches the in-game spec card.

219.2 mm point-blank

AP Pen Far

Same formula at the ship's max firing range (11.1 km), where the shell has slowed to 321.5 m/s:

P = 10^{- 7} \cdot 1830 \cdot {47.7}^{0.69} \cdot {0.152}^{- 1.07} \cdot {321.5}^{1.38} = 57 mm

57 mm at 11.1 km

AP full-salvo alpha

Zero upgrades: 3,000 AP damage x 6 broadside guns = 18,000. All upgrades (top gun, 8-gun broadside): 3,000 AP damage x 8 broadside guns = 24,000.

Initial: 18,000 → 24,000

AP DPM

Zero upgrades: 18,000 AP full-salvo alpha x 60 / 10 s base reload = 108,000. All upgrades (top gun, 8-gun broadside): 24,000 AP full-salvo alpha x 60 / 8 s all-upgrades reload = 180,000.

Initial: 108,000 → 180,000

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: 0 → 8

Maximum AA range

Longest-reaching family on the in-game AA card. Base AirDefense aura max range is 0 km; dual-purpose mount auras extend it.

1 km

7.6 mm Hotchkiss Mk18×1 8mm

Guns7.6 mm Hotchkiss Mk1

Continuous DPS

Effective DPS: 7 raw aura damage × 3.5 × 0.85 hit probability = 21 - the same in-game units as the Close-range AA DPS headline.

Range1 km

See the AA layers diagram ↓

Secondary Battery

Mounts18

Firing range2.5 km

Shell Grouping (σ)1

76.2 mm Mk418×1 76.2mm

Caliber76.2 mm

Reload time5 s

HE Damage1,100

Muzzle Velocity823 m/s

Fire Chance4%

Armor Pen13 mm

Secondary dispersion type

Max dispersion = range (km) × 57 + 30. Each dispersion type sets its own slope; this is not a percentage applied to a standard baseline.

Standard

Max secondary dispersion @ 2.5 km

2.5 km × 57 + 30 = 172.5 m.

172.5 m

Maneuverability

Engine power21,000 hp

Maximum speed22 kt

Turning circle radius450 m

Rudder shift time6.5 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 = 22 / 4 + 4.9 = 10.4 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.

10.4 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.

31.4 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).

7.4 kt

Acceleration 0-90%

Time to reach 90% of top speed (19.8 kt of 22 kt), from our in-house acceleration model.

27.9 s

Acceleration 0-99%

Time to reach 99% of top speed (21.8 kt of 22 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.

47.4 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{22.0 \cdot 0.5144}{450} = 1.44 ° / s

, so

ratio = \frac{ω_{turret}}{ω_{hull}} = \frac{6}{1.44} = 4.2 \times

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

4.2× drags

See the full acceleration curve ↓

Concealment

Detectability by sea9.09 km

Detectability by air5.45 km

Smoke firing penalty3.97 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.

11.1 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.

8.49 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.

11.09 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.

8.45 km

Guaranteed Detect2 km

✦

Consumables

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

Module options (3)

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

HullUpgrade

Hit points25,000 → 27,000
Rudder shift10.9 → 8.4 s
AA mounts0 → 8
Close-range AA DPS0 → 7
Maximum AA range0 → 1 km
Turret traverse6 → 8 °/s

Fire controlUpgrade

Main battery range10,093 → 11102.3 m

ArtilleryUpgrade

Base reload10 → 8 s

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

Max Horiz Disp109.6 m at 11.1 km

Horizontal dispersion ellipse width at max range, from the verified WoWS dispersion model:  $σ_{H} = (\frac{R}{30} \cdot \frac{idealRadius - minRadius}{idealDistance} + minRadius) \cdot 30$   $= (\frac{11102.3}{30} \cdot \frac{8 - 1.1}{1000} + 1.1) \cdot 30 = 109.6 m$

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.

Max Vert Disp65.8 m at 11.1 km

Vertical dispersion ellipse height at max range: $σ_{V} = σ_{H} \cdot radiusOnMax$ $= 109.6 \cdot 0.6 = 65.8 m$

Shell scatter height @ 10 km59.2 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  $delim \cdot R_{m a x} = 0.5 \cdot 11102.3 = 5551$  m, and  $radiusOnMax = 0.6$  at 11102.3 m. Above the kink:  $k = 0.5 + (0.6 - 0.5) \cdot \frac{10000 - 5551}{11102.3 - 5551} = 0.5801$ , so  $σ_{V} = σ_{H} \cdot k = 102 \cdot 0.5801 = 59.2 m$ .

Med Horiz Disp32.9 m at 11.1 km

50%-hit horizontal radius: $σ_{H, 50} = σ_{H} \cdot \frac{0.6}{σ}$ $= 109.6 \cdot \frac{0.6}{2} = 32.9 m$

Med Vert Disp19.7 m at 11.1 km

50%-hit vertical radius: $σ_{V, 50} = σ_{V} \cdot \frac{0.6}{σ}$ $= 65.8 \cdot \frac{0.6}{2} = 19.7 m$

Dispersion familyCruiser Disp.

Standard cruiser dispersion baseline.

AP Pen Close219.2 mm point-blank

Canonical community AP formula (jcw780/wows_shell), evaluated at muzzle velocity:  $P = 10^{- 7} \cdot K \cdot m^{0.69} \cdot d^{- 1.07} \cdot v_{0}^{1.38}$   $= 10^{- 7} \cdot 1830 \cdot {47.7}^{0.69} \cdot {0.152}^{- 1.07} \cdot 853^{1.38} = 219.2 mm$ . Matches the in-game spec card.

AP Pen Far57 mm at 11.1 km

Same formula at the ship's max firing range (11.1 km), where the shell has slowed to 321.5 m/s:  $P = 10^{- 7} \cdot 1830 \cdot {47.7}^{0.69} \cdot {0.152}^{- 1.07} \cdot {321.5}^{1.38} = 57 mm$ .

AP pen 5 km115 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 km64 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 flight time @ 10 km7 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:  $k = \frac{π C_{d} d^{2}}{8 m} = \frac{π \cdot 0.4036 \cdot {0.152}^{2}}{8 \cdot 47.7} = 7.68 \times 10^{- 5}$ . That runs from a 853 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 km7 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:  $k = \frac{π C_{d} d^{2}}{8 m} = \frac{π \cdot 0.4036 \cdot {0.152}^{2}}{8 \cdot 47.7} = 7.68 \times 10^{- 5}$ . That runs from a 853 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 penetration25 mm

25 mm ≈ 152 mm caliber / 6 (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 Radius10

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 alphaInitial: 6 → 8

Stock guns: 6 of 10 barrels bear on one beam. Top guns: 8 of 14. Alpha and DPM pair each configuration's salvo with its own reload.

Turret turn time30 s

180 degrees / 6 deg/s traverse speed = 30 s.

HE full-salvo alphaInitial: 12,600 → 16,800

Zero upgrades: 2,100 HE damage x 6 broadside guns = 12,600. All upgrades (top gun, 8-gun broadside): 2,100 HE damage x 8 broadside guns = 16,800.

AP full-salvo alphaInitial: 18,000 → 24,000

Zero upgrades: 3,000 AP damage x 6 broadside guns = 18,000. All upgrades (top gun, 8-gun broadside): 3,000 AP damage x 8 broadside guns = 24,000.

HE DPMInitial: 75,600 → 126,000

Zero upgrades: 12,600 HE full-salvo alpha x 60 / 10 s base reload = 75,600. All upgrades (top gun, 8-gun broadside): 16,800 HE full-salvo alpha x 60 / 8 s all-upgrades reload = 126,000.

AP DPMInitial: 108,000 → 180,000

Zero upgrades: 18,000 AP full-salvo alpha x 60 / 10 s base reload = 108,000. All upgrades (top gun, 8-gun broadside): 24,000 AP full-salvo alpha x 60 / 8 s all-upgrades reload = 180,000.

Shells/minInitial: 36 → 60

Zero upgrades: 6 broadside guns x 60 / 10 s base reload = 36. All upgrades (top gun, 8-gun broadside): 8 broadside guns x 60 / 8 s all-upgrades reload = 60.

Fires/minInitial: 2.52 → 4.2

Zero upgrades: 36 shells/min x 7% fire chance = 2.52. All upgrades (top gun, 8-gun broadside): 60 shells/min x 7% fire chance = 4.2.

AA defense

AA DPS at max range21

Only families that reach 1 km contribute at the outer edge of the AA bubble. In-game families: Hotchkiss MG Mk1 8x1 -> 21 DPS @ 1 km.

Maximum AA range1 km

Longest-reaching family on the in-game AA card. Base AirDefense aura max range is 0 km; dual-purpose mount auras extend it.

AA DPS layered by range21 DPS @ 1 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-blank21

Sum of every family's average DPS, achievable only inside the closest-range family (1 km).

AA threat index21

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 range1 km

Secondary battery dispersion

Secondary dispersion typeStandard

Max dispersion = range (km) × 57 + 30. Each dispersion type sets its own slope; this is not a percentage applied to a standard baseline.

Max secondary dispersion @ 2.5 km172.5 m

2.5 km × 57 + 30 = 172.5 m.

Secondary battery firepower

Secondary DPM (per side)118,800

Sum across all secondary families of (per-side barrels × 60 / reload_s × alpha), where per-side barrels = mounts × barrels-per-mount / 2 (the guns that bear on one broadside target). Per-family: 18×1 76.2 mm (9/side) × 60/5 × 1100 = 118,800. Assumes every shell hits (real hit rate is lower; the Brawl matchup tool on the Compare page folds in dispersion + target armor).

Max HE alpha1100

Maximum HE damage per shell across secondary HE families. Best on this ship: 1100 from the 76.2 mm family.

Max HE fire chance4%

Maximum per-shell fire chance across secondary HE families (before target fire resistance is applied). Best on this ship: 4% from the 76.2 mm family.

Max HE pen13 mm

Maximum HE armor penetration across secondary HE families (caliber × 1/6 for most nations; 1/4 for German/UK BBs). Shells whose pen falls under a plate's armor thickness shatter for 0 hull damage though fire chance still applies. Best on this ship: 13 mm from the 76.2 mm family.

Armor Beta

Hull HP 25,000 → 27,000 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 & stern6 mm

Overmatched by 105+ 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.

Farming6 mm

Superstructure and extremities take HE pens and AP overpens from nearly any gun: steady chip damage. Fire resistance 3%, fires burn 30s. Range-by-range in the Compare tool →

Section	Plates	HP cap	Threats	Tactic
Bow	6 mm primary (range 6–38 mm)	2,300 (9% of HP)	Overmatched by 127mm+ AP (Farragut, Shenyang)6 mm: HE pens from 127mm+	Bow-tank fits behind this exterior plate. Saturation is FAST here; the cap is often only a few thousand HP.
Hull (midship)	13 mm primary (range 13–51 mm)	20,300 (75% of HP)	Overmatched by 203mm+ AP (Furutaka)Angle bounces 152mm13 mm: HE pens from 127mm+	Largest HP pool. Citadel sits behind these plates; thinner deck and side plating absorb the rest.
Stern	6 mm primary (range 6–13 mm)	1,600 (6% of HP)	Overmatched by 127mm+ AP (Farragut, Shenyang)6 mm: HE pens from 127mm+	Mirror of bow. Same fast saturation.
Citadel	102 mm primary (range 6–102 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	6 mm primary (range 6–13 mm)	800 (3% 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	13,500 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.
Secondary mount (76.2 mm mount)	separate HP pool, does not drain ship HP	800 per-mount HP	Destroyed at 0 HP	Per-mount HP for the heaviest secondary on this ship. A mount destroyed at 0 HP is out for the rest of the battle; DCP does not repair destroyed mounts. Smaller (lighter-caliber) secondaries typically share the same HP value.
AA mount (8 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	8,100 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

Balance History

Balance updates affecting St. Louis. Cards are condensed; use each source link for full context.

Nerf ×14

2023-06-15

Ministry of Balance: Italian Concerto

Stock Hull HP reduced from 27,300 to 25,000.
Bow HP reduced from 2,400 to 2,200.
Casemate HP reduced from 3,400 to 3,100.
Stern HP reduced from 1,600 to 1,400.
Hull HP reduced from 20,500 to 18,800.
Magazine HP reduced from 13,700 to 12,500.
Steering Gear HP reduced from 8,200 to 7,500.
Upgraded Hull HP reduced from 29,500 to 27,000.
Bow HP reduced from 2,600 to 2,300.
Casemate HP reduced from 3,700 to 3,400.
+4 more official change lines in the source post.

Read the full official post

Exteriors

Skins & permanent camouflages

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

DefaultThe ship’s standard exterior
Dr FrankenshipHalloween

Primary official WG sources

GamingDiver has indexed official WG mentions for this ship, but none are focused enough to show as a primary source card here. Low-context list, crate, comparison, or passing mentions are intentionally filtered out.

Source status No high-context source card yet Filtered for precision

St. Louis

St. Louis Community Stats

St. Louis Community Stats

Playstyle

Overview

Positioning

Potato Avoidance

Signature Traits →

How to get St. Louis

Builds

Cohort position

Peers in this cohort

Stats & specs

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Main battery formulas

AA defense

Secondary battery dispersion

Secondary battery firepower

Armor Beta

Ship Charts

Balance History

Ministry of Balance: Italian Concerto

Skins & permanent camouflages

Primary official WG sources

Signature Traits