World of Warships: Legends ship guide

Duguay-Trouin

Also called: 迪盖-特鲁安 Beta
Sonar cruiserSonar contests islands and smoke without exposing the hull to vision cycles.
Playstyle
  • Switch to HE the moment a target angles: your bounce angles are the standard 45°/60°, so AP that fails the angle check does nothing no matter how much penetration it carries. Save AP for a flat broadside
  • Work the islands rather than a firing line
  • Avoid: Pushing in blind because the kit says brawler
Key characteristics
Long torps (6.5 km)Heavy AP pen13.1 km gun rangeSonarHeavy AP shellsEasily spotted
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Community Data

Duguay-Trouin Community Stats

Across 3,700+ Standard battles from 340+ players, Duguay-Trouin averages a 58% win rate, 28,600 damage and 1.0 kills per battle, and survives 26% of them.

Community Data

Duguay-Trouin Community Stats

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

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Playstyle

Overview

Duguay-Trouin is a Tier III French light cruiser with Sonar as her vision tool. It lets her contest islands and smoke without exposing the hull to vision cycles, which shapes how she pressures caps. Her sonar reaches 3.5 km, which is the range at which she can commit to a contest without guessing. Standout traits: best AP overmatch threshold in T3 CAs (10.8 mm, 1st of 12) and heavy AP shells in T3 CAs (3,300, 2nd of 12). The trade is surface detection in T3 CAs (10.9 km, 11th of 12).

Positioning

Work the islands rather than a firing line. Sonar (3.5 km on ships, 2.5 km on torpedoes) is the whole kit, and it only pays inside that radius, so hold the cover beside a contested cap and use it to catch destroyers and torpedoes coming around the corner: HE into the destroyer, AP into any cruiser that shows you a broadside while it sits in smoke. Firing from a friendly smoke reveals you at 5 km, so pick the salvo rather than holding the trigger. 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. Both phases of a turn are slow (7.8 s on the rudder, a 670 m circle), so course changes are a plan rather than a reaction: set the angle before you are shot at.

Potato Avoidance

Pushing in blind because the kit says brawler

3.5-km Sonar is what makes the close fight winnable, and it only helps once you are already committed; it does not tell you what is waiting two islands over. Push when a destroyer is lit or a teammate holds vision, not to find out who is there.

Signature Traits

ELITE MAIN BATTERY ↗
  • Big-caliber AP overmatch · 10.8 mm
  • Heavy AP shells · 3300 damage
  • Close-range AP brick · 259.7 mm
  • Long-range AP brick · 92.76 mm
  • Long gun range · 13.1 km
High HP pool ↗

26700 HP, best of T3 CAs.

Thick bow plate ↗

13 mm bow, top decile of T3 CAs. Harder for same-tier AP to overmatch.

Easily spotted ↗

10.9 km surface detect, bottom decile of T3 CAs. Visible before you can react; position early.

Stiff AP fuse ↗

26 mm AP arming threshold, worst of T3 CAs. Over-pens thin plates; the trade-off pays off when most targets are battleship belt armor.

Acquisition

How to get Duguay-Trouin

Duguay-Trouin is available in the Rapid Cruisers branch of the France Tech Tree for 85,000 credits after researching it in the branch. Known module upgrades cost up to 21,240 credits.

While you save up, check active promo codes for free doubloons, camouflages, and other rewards.

Show France tech-tree branch diagram
France Tech Tree

Duguay-Trouin sits in the Rapid Cruisers branch. The highlighted path shows the local branch context inside the full France tree.

Builds

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

Open in Build Tool →

Commanders frequently paired with this ship AL Saint LouisAndré Roux

Have a build you swear by? Open it in the Build Tool and hit Save build to share it here, or browse the Ship Builds guide for proven loadouts across the fleet.

Cohort position

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Where Duguay-Trouin sits among Tier III CAs (11 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.

BestHit points26,700 HP (1/12) BestMain battery caliber155 mm (1/12) BestEngine power100,000 hp (1 of 2 tied) BestAP pen at 10 km118 mm (1/12) Top 10%Main battery range13.14 km (2/12) Top 10%AP shell damage3,300 (2/12) Top 10%Power / turn radius149.3 hp/m (2/12) Top 25%AP velocity870 m/s (4/12) Top 25%Time to 90% speed22.6 s (3/12) Top 25%Torpedo damage≈11,233 (3/11) Top 25%End plates13 mm (4/12 / 4/12) Bottom 25%Stealth profile10.9 km / 6.54 km (11/12 / 11/12) Bottom 25%Turning circle670 m (11/12) Bottom 25%Main battery reload12 s (11/12) Bottom 25%Main dispersion123.7 m (11/12) ShorterAP fuse timer0.01 s (11/12) Bottom 25%AA threat191 (10/12) Bottom 25%Torpedo reload84 s (10/11) WorstSmoke fire bloom5.05 km (12/12) WorstRudder shift7.8 s (1 of 2 tied) WorstNo secondaries (8 of 12 in cohort) WorstAP arming threshold26 mm (12/12) WorstDisplacement9,350 t (12/12) WorstFlak damage per salvo (expected)180 (1 of 2 tied) WorstMax armor30 mm (12/12) WorstCitadel belt20 mm (12/12)
See 19 mid-pack stats

Not standouts for Duguay-Trouin -- 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(7/12) HE shell damage2,200(5/11) HE fire chance11%(5/11) Fires per minute4.4(7/11) HE DPM88,000(8/11) AP DPM132,000(8/12) HE velocity870 m/s(5/11) Acceleration (0-12 kt)8.4 s(7/12) Power-to-weight10.7 hp/t(6/12) Effective HE DPM (incl. fire)116,868(8/11) AA DPS126(5/12) AA range3 km(9/12) Torpedo range6.51 km(4/11) Torpedo speed58 kt(5/11) Torpedo reaction time7.7 s(7/11) NormSigma2(11 of 12 tied at this value) NormAP ricochet start45°(11 of 12 tied at this value) NormAP auto-bounce angle60°(11 of 12 tied at this value) NormTurn speed retained81%(11 of 12 tied at this value)
Survivability
Hit PointsInitial: 22,900 → 26,700
Displacement9,350 t
Hull dimensions
ƒLength x beam at the waterline, plus draft. Length matters when dodging torpedoes; beam and draft shape how hard the ship is to hit.
181.6 x 17.5 m (published figure)
Armor range10–30 mm
Plate armor thicknesses10, 13, 14, 16, 20, 30 mm
Armor material/layer entries44
Fire resistance
ƒstock hull: 1 − 0.9334 fire coefficient = 6.7%; top hull: 1 − 0.9001 fire coefficient = 10%. Lowers how often hits set you on fire. It does not reduce the damage a burning fire does per second; fires burn at the full rate on every ship.
Initial: 6.7% → 10%
Fire duration30 s
Fire damage
ƒOne unattended fire: 0.003 of max HP per second (0.3%) × 30 s = 0.09 of the pool; 0.09 × 26,700 HP = 2,403 HP on this ship. 4 fire points can burn at once.
0.3% of HP per second
Flood duration40 s
Flood damage
ƒOne unattended flood: 0.0025 of max HP per second (0.25%) × 40 s = 0.1 of the pool; 0.1 × 26,700 HP = 2,670 HP on this ship.
0.25% of HP per second
Torp Reduction
ƒ1 − 0.32 hull torpedo-damage coefficient / 0.333 unprotected baseline = 4%. Reduces torpedo hit damage. It does not affect flooding: floods start as often and tick at the full rate.
4%
Magazine HP
ƒPer-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.
13,400
Steering gear HP
ƒDurability 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.
8,000
Repairable: penetration50%
Repairable: citadel10%
Repairable: steering gear50%
Section HP
Bow section HP
ƒDamage saturation pool for the bow: penetrations here deal their normal share until twice this much penetration damage has landed on the section (2 × 3,600 = 7,200), then further hits on it deal half damage. A penetration deals 0.33 × the shell's max damage; once the section is saturated it deals exactly half of that (0.5 × 0.33 = 0.165 × max damage), so a 3,000-damage shell's pen goes from 990 to 495. Overpens (0.1 × max damage) and citadels (1.0 ×) ignore saturation. Pens on the ship's other, unsaturated sections still deal the normal 0.33 ×. A larger pool keeps that part of the ship taking full damage for longer; a small one saturates fast and protects the ship's HP.
3,600
Auxiliary section HP
ƒDamage saturation pool for the auxiliary room: penetrations here deal their normal share until twice this much penetration damage has landed on the section (2 × 800 = 1,600), then further hits on it deal half damage. A penetration deals 0.33 × the shell's max damage; once the section is saturated it deals exactly half of that (0.5 × 0.33 = 0.165 × max damage), so a 3,000-damage shell's pen goes from 990 to 495. Overpens (0.1 × max damage) and citadels (1.0 ×) ignore saturation. Pens on the ship's other, unsaturated sections still deal the normal 0.33 ×. A larger pool keeps that part of the ship taking full damage for longer; a small one saturates fast and protects the ship's HP.
800
Hull section HP
ƒDamage saturation pool for the hull: penetrations here deal their normal share until twice this much penetration damage has landed on the section (2 × 20,000 = 40,000), then further hits on it deal half damage. A penetration deals 0.33 × the shell's max damage; once the section is saturated it deals exactly half of that (0.5 × 0.33 = 0.165 × max damage), so a 3,000-damage shell's pen goes from 990 to 495. Overpens (0.1 × max damage) and citadels (1.0 ×) ignore saturation. Pens on the ship's other, unsaturated sections still deal the normal 0.33 ×. A larger pool keeps that part of the ship taking full damage for longer; a small one saturates fast and protects the ship's HP.
20,000
Superstructure section HP
ƒDamage saturation pool for the superstructure: penetrations here deal their normal share until twice this much penetration damage has landed on the section (2 × 1,000 = 2,000), then further hits on it deal half damage. A penetration deals 0.33 × the shell's max damage; once the section is saturated it deals exactly half of that (0.5 × 0.33 = 0.165 × max damage), so a 3,000-damage shell's pen goes from 990 to 495. Overpens (0.1 × max damage) and citadels (1.0 ×) ignore saturation. Pens on the ship's other, unsaturated sections still deal the normal 0.33 ×. The superstructure is not exempt: it saturates exactly like the bow and stern, so shells aimed at it stop dealing full damage once this pool is used up. A larger pool keeps that part of the ship taking full damage for longer; a small one saturates fast and protects the ship's HP.
1,000
Stern section HP
ƒDamage saturation pool for the stern: penetrations here deal their normal share until twice this much penetration damage has landed on the section (2 × 2,600 = 5,200), then further hits on it deal half damage. A penetration deals 0.33 × the shell's max damage; once the section is saturated it deals exactly half of that (0.5 × 0.33 = 0.165 × max damage), so a 3,000-damage shell's pen goes from 990 to 495. Overpens (0.1 × max damage) and citadels (1.0 ×) ignore saturation. Pens on the ship's other, unsaturated sections still deal the normal 0.33 ×. A larger pool keeps that part of the ship taking full damage for longer; a small one saturates fast and protects the ship's HP.
2,600
Citadel section HP
ƒThis section has no practical saturation cap: every hit here keeps dealing its normal share of damage (on most ships the citadel; on many destroyers the casemate).
No saturation cap
Main Battery
ModuleArtillery: 155 mm/50 Mle 1921
Mounts / barrels4 mounts / 8 barrels
Reload time12 s
Firing range (base)11.9 km
Firing range (top fire control)13.1 km
Turret traverse8 °/s
Turret armor30 mm
Turret traverse arcs
ƒHow far each mount can train, in degrees to either side of the mount's own facing. 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.
±146°, ±144°, ±140°, ±141°
Guns to bear
ƒ180° − 140° (the most restricted aft-facing mount's arc) = 40° off bow; 180° − 141° (the most restricted forward-facing mount's arc) = 39° off stern. 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.
40° off bow / 39° off stern
Shell Grouping (σ)2
Dispersion type
ƒIn practice: the baseline curve for a standard cruiser -- at max range (13.1 km) shells land in an ellipse about 124 m wide and 74 m tall. Also on this curve (215): AL Baltimore, AL Chapayev, AL Cheshire, AL Harbin, AL Montpelier, AL Tallinn, AL Zara, Aberdeen, Accord, Agano, Albemarle, Algérie and 203 more.
Standard cruiser
Max Horiz Disp
ƒHorizontal dispersion ellipse width at max range, from the dispersion model: σH=(R30·idealRadius−minRadiusidealDistance+minRadius)·30 =(13139.530·8−1.11000+1.1)·30=123.7m
123.7 m at 13.1 km
Max Vert Disp
ƒVertical dispersion ellipse height at max range: σV=σH·radiusOnMax =123.7·0.6=74.2m
74.2 m at 13.1 km
Med Horiz Disp
ƒ50%-hit horizontal radius: σH,50=σH·0.6σ =123.7·0.62=37.1m
37.1 m at 13.1 km
Med Vert Disp
ƒ50%-hit vertical radius: σV,50=σV·0.6σ =74.2·0.62=22.3m
22.3 m at 13.1 km
Turret turn time
ƒ180 degrees / 8 deg/s traverse speed = 22.5 s.
22.5 s
Shells/min
ƒ8 broadside guns x 60 / 12 s base reload = 40.
40
HE shells
HE alpha2,200
HE Velocity870 m/s
Fire Chance11%
HE fire DPM vs T3 BB28868
Effective HE DPM vs T3 BB116868
HE penetration
ƒ26 mm ≈ 155 mm caliber / 6 (standard HE penetration ratio).
26 mm
HE full-salvo alpha
ƒ2,200 HE damage x 8 broadside guns = 17,600.
17,600
HE DPM
ƒ17,600 HE full-salvo alpha x 60 / 12 s base reload = 88,000.
88,000
Fires/min
ƒ40 shells/min × 0.11 (11% fire chance) = 4.4.
4.4
AP shells
AP alpha3,300
AP Velocity870 m/s
Min Ricochet45 deg
Guaranteed Ricochet60 deg
Fuse Timer0.01 s
Fuse Threshold26 mm
AP overmatch
ƒfloor(155 mm caliber / 14.3) = 10 mm (AP auto-penetrates plating this thick or less).
10 mm
AP Pen Close
ƒAP formula evaluated at muzzle velocity: P=10−7·K·m0.69·d−1.07·v01.38 =10−7·2214·56.50.69·0.155−1.07·8701.38=299.9mm.
299.9 mm point-blank
AP Pen Far
ƒSame formula at the ship's max firing range (13.1 km), where the shell has slowed to 371.8 m/s: P=10−7·2214·56.50.69·0.155−1.07·371.81.38=92.8mm.
92.8 mm at 13.1 km
AP full-salvo alpha
ƒ3,300 AP damage x 8 broadside guns = 26,400.
26,400
AP DPM
ƒ26,400 AP full-salvo alpha x 60 / 12 s base reload = 132,000.
132,000
AP AOE Radius
ƒAP 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.
10
Torpedoes
ModuleTorpedoes: 550 mm 19D Mle 2
Launchers / tubes4 launchers × 3 tubes = 12 tubes
Reload time84 s
Projectile speed
ƒSpeed of the top torpedo module (all-upgrades configuration, 58.0 kt); the stock torpedo module runs 57.0 kt.
Initial: 57 kt → 58 kt
RangeInitial: 6 km → 6.51 km
Maximum simulated damage
ƒMost targets only intersect one hull section, so a hit transfers about 1/3 of the warhead alpha (2/3 when the warhead blast >= 5000 and the burst reaches a second section). For this ship: Dsim=α·c=33,700·0.333=11,233. In battle, a hit on the torpedo belt deals the per-hit figure × (1 − the target's torpedo protection %), a bow or stern hit deals it in full, and a torpedo never counts as a citadel hit.
≈ 11,233
Maximum damage (ammunition)
ƒ33,700 warhead alpha / 3 + 1,000 blast = 12,233. Warhead alpha / 3 plus the blast addend: the per-torpedo damage figure. The 'Maximum simulated damage' row above applies target geometry to the same warhead.
12,233
Torpedo module damage
ƒPer-torpedo module/blast damage parameter. Most torpedoes carry 500 to 2,000; ships announced by WG as dealing increased module damage carry 9,000 to 12,000, so their hits knock out engines, rudders, and turrets far more often. Comparative figure.
1,000
Torpedo detectability1.2 km
Reaction time
ƒHow long a target has to dodge after your torpedo is spotted at its detectability range (lower means less warning): treact=1.2 km58 kt×2.6855=7.7 s. 2.6855 converts knots to m/s on the game clock. Base value; commander torpedo-concealment skills lower it further.
7.7 s
Flooding chance
ƒThis torpedo carries a flooding-chance value of 1.99 per hit, shown as 1.99×100=199%. Values above 100% are normal: in battle the base chance is scaled down by the target's torpedo protection (the Torp Reduction stat on its Survivability card) and any flood-resistance modifiers, so a value above 100% keeps flooding likely even through partial protection.
199%
Torpedo launcher traverse25 °/s
Launch arcswing 152°, 155° (one launcher per beam)
Torp Turn
ƒTime to rotate the launchers 180 deg: tturn=180°25°/s=7.2s.
7.2 s
Torp Arming186 m
Per-side salvo damage
ƒOne side firing, all torpedoes hitting: per-side tubes x per-torpedo simulated damage = 6 x 11,233 = 67,398. Each hit on the target's torpedo belt is reduced by its torpedo protection %.
67,398
AA Defense
AA mount points10
Maximum AA range
ƒLongest-reaching family on the in-game AA card. Base AirDefense aura max range is 3 km; dual-purpose mount auras extend it.
3 km
75 mm/50 Mle 19224×1 75mm
13.2 mm/76 CAD Mle 1929 (upgraded hull only)6×2 13mm
8 mm Mle 1914 (stock hull only)6×1 8mm
Far aura
Guns75 mm/50 Mle 1922
Continuous DPS
ƒInitial: 5 × 3.5 × 0.9 = 16 → 7 × 3.5 × 0.9 = 22. Raw aura damage × 3.5 × hit probability, the same in-game units as the Close-range AA DPS headline.
Initial: 16 → 22
Range3 km
Near aura
Guns13.2 mm/76 CAD Mle 1929
Continuous DPS
ƒEffective DPS: 35 raw aura damage × 3.5 × 0.85 hit probability = 104 - the same in-game units as the Close-range AA DPS headline.
104
Range1.2 km
Total DPS in Aura
ƒFar 22 + Near 104 = 126
126
Flak
AA explosions
ƒEach ~2 s salvo fires 2 AA explosions in quick succession, each leaving 1 cloud ahead of the attacking squadron - up to 2 clouds per salvo × 100 damage each. Planes that fly into a cloud take its damage; clouds dissipate before the next salvo lands. Defensive AA Fire, where fitted, multiplies the AA explosions within each salvo, and commander skills that raise the Number of AA explosions add to it.
2 per salvo, 1 cloud each
Cloud damage
ƒDamage a plane takes for flying into one flak cloud, before any reductions.
100
Cloud spawn chance
ƒEach cloud in the pattern rolls this chance to spawn, so salvos 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%
Salvo interval
ƒA new flak salvo (the AA explosions above) fires roughly every 2 s.
every ~2 s
Fired by
ƒFlak keeps firing while at least one AA mount is operational - it stops only once every AA mount is knocked out.
AA mounts
Flak zone
ƒThe activation band: flak fires while attacking planes are inside it. Clouds are placed ahead of the planes' path, so clouds can land short of 2.5 km or past 3 km - once planes get inside the band, new salvos stop. AA range bonuses push the outer edge out; the 2.5 km inner edge does not move.
2.5-3 km
Maneuverability
Engine power100,000 hp
Maximum speed33.0 kt
Turning circle radius670 m
Rudder shift timeInitial: 10.9 s → 7.8 s
Engine power-boost threshold7.0 kt
Engine spool-up time15.3 s
Reverse spool-up time7.7 s
Reverse speed
ƒtop speed / 4 + 4.9 = 33 / 4 + 4.9 = 13.2 kt. Base value; speed modifiers scale it.
13.2 kt
Crash stop
ƒSeconds 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, using the ship's own reverse-power ratio. The full curve is on the acceleration chart. Full reverse stops about a quarter faster than a plain Stop order from top speed.
24.4 s
Engine boost threshold (reverse)
ƒSpeed below which the engine's built-in power boost applies in reverse.
9.3 kt
Acceleration 0-90%
ƒTime to reach 90% of top speed (29.7 kt of 33.0 kt).
22.6 s
Acceleration 0-99%
ƒTime to reach 99% of top speed (32.7 kt of 33.0 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.
35.4 s
Guns in a full turn
ƒWith the rudder hard over the hull turns 6.1°/s, so a target drifts across the bow at that rate. Turret traverse minus hull turn: 8 − 6.1 = +1.9°/s, so the guns hold the target through the turn. Main Battery Mod. 2 (+20% traverse) and Mod. 3 (−15%) move this line.
hold target (+1.9°/s spare)
Concealment
Detectability by sea
ƒBase value, no camouflage. With a Grade IV permanent camo (or any disposable camo): 10.9 km x 0.955 = 10.41 km. Camouflage does not change detectability by air.
10.9 km
With Grade IV camouflage (sea)
ƒDetectability by sea 10.9 km x 0.955 (Grade IV permanent camo or any disposable camo) = 10.41 km.
10.41 km
Detectability by air6.54 km
Smoke firing penalty5.05 km
Detect when firing (sea)
ƒmax(main battery range, sea detectability 10.9 km) = 13.14 km. Equal to the ship's main battery range (never below base detectability): firing makes you visible to everyone you can reach.
13.14 km
Detect when firing (air)
ƒAir detectability 6.54 km + gun-firing bloom 3.1 km = 9.64 km. The bloom tracks main-battery caliber 155 mm × 0.020 = 3.1 km.
9.64 km
Detect when on fire (sea)
ƒSea detectability 10.9 km + 2.0 km while burning = 12.9 km.
12.9 km
Detect when on fire (air)
ƒAir detectability 6.54 km + 3.0 km while burning = 9.54 km.
9.54 km
Guaranteed Detect2 km
✦
Consumables
Damage Control Party∞ charges · 60 s reload · 5 s active
Sonar Hull B only2 charges · 180 s reload · 90 s active · 3.48 km ship detect
ƒDerived from the consumable's 30 m grid-unit range (km = grid units x 30 / 1000): 116×301000=3.48 km
· 2.52 km torpedo detect
ƒDerived from the consumable's 30 m grid-unit range (km = grid units x 30 / 1000): 84×301000=2.52 km
Catapult Fighter3 charges · 80 s reload · 70 s active · 5 km patrol radius
ƒDerived from the consumable's 30 m grid-unit range (km = grid units x 30 / 1000): 167×301000=5 km
· 1 squadron size
Module options (3)

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

HullUpgrade
  • Hit points22,900 → 26,700
  • Rudder shift10.9 → 7.8 s
  • Close-range AA DPS15 → 42
Fire controlUpgrade
  • Main battery range11,945 → 13139.5 m
TorpedoesUpgrade
  • Range6 → 6.51 km
  • Speed57 → 58 kt

Under the hood

Show ▾

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

The constants behind the formulas and the long tail: shell and dispersion inputs, fixed-range anchors, salvo math, layered AA. Click the formula chip on any row to see how it is calculated.

Main battery formulas

vs standard cruiserStandard
The standard cruiser dispersion curve.
Shell scatter width @ 5 km67.5 m
(166.7 × (8 − 1.1) / 1000 + 1.1) × 30 = 67.5 m. Horizontal scatter at a fixed 5 km, from the same dispersion model as the rows below - a knife-fight-range anchor comparable across ships.
Shell scatter width @ 10 km102 m
(333.3 × (8 − 1.1) / 1000 + 1.1) × 30 = 102 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 height @ 5 km28.9 m
How tall the scatter ellipse is at a fixed 5 km, from the same model, comparable from ship to ship. 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·Rmax=0.5·13139.5=6570 m, and radiusOnMax=0.6 at 13139.5 m. Below the kink: k=0.2+(0.5−0.2)·50006570=0.4283, so σV=σH·k=67.5·0.4283=28.9m.
Shell scatter height @ 10 km56.3 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·Rmax=0.5·13139.5=6570 m, and radiusOnMax=0.6 at 13139.5 m. Above the kink: k=0.5+(0.6−0.5)·10000−657013139.5−6570=0.5522, so σV=σH·k=102·0.5522=56.3m.
AP pen 5 km186 mm
AP penetration at a fixed 5 km, from the same ballistic curve as AP Pen Close/Far: the shell's impact velocity at that range fed through the AP formula P=10−7·K·m0.69·d−1.07·v1.38 =10−7·2214·56.50.69·0.155−1.07·615.11.38=186mm, where 615.1 m/s is the shell's speed when it arrives at 5 km (from 870 m/s at the muzzle). Fixed anchors make ships directly comparable at the same fighting distance; the Charts card plots the full curve.
AP pen 10 km118 mm
AP penetration at a fixed 10 km, from the same ballistic curve as AP Pen Close/Far: the shell's impact velocity at that range fed through the AP formula P=10−7·K·m0.69·d−1.07·v1.38 =10−7·2214·56.50.69·0.155−1.07·443.21.38=118mm, where 443.2 m/s is the shell's speed when it arrives at 10 km (from 870 m/s at the muzzle). Fixed anchors make ships directly comparable at the same fighting distance; the Charts card plots the full curve.
AP flight time @ 10 km5.99 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, adrag=kρv2, where ρ is air density from a standard-atmosphere profile and k bundles the shell's drag coefficient, caliber and mass: k=πCdd28m=π·0.3401·0.15528·56.5=5.68×10−5. That runs from a 870 m/s muzzle velocity in 0.02 s steps under gravity 9.8 m/s² until the shell lands, then divides by 2.77 because the game clock runs faster than real time. Lower is better, since a faster shell is harder to dodge and needs less lead.
HE flight time @ 10 km5.89 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, adrag=kρv2, where ρ is air density from a standard-atmosphere profile and k bundles the shell's drag coefficient, caliber and mass: k=πCdd28m=π·0.3401·0.15528·59=5.44×10−5. That runs from a 870 m/s muzzle velocity in 0.02 s steps under gravity 9.8 m/s² until the shell lands, then divides by 2.77 because the game clock runs faster than real time. Lower is better, since a faster shell is harder to dodge and needs less lead.
Guns per full salvo (alpha, DPM)8
4 mounts × 2 barrels = 8; all 8 bear on the broadside.

Model inputs

Krupp (AP)2,214
Armor-penetration constant of the AP shell; penetration scales straight with it, so a 10% higher Krupp is 10% more penetration at every range.
AP shell mass56.5 kg
Enters penetration as mass^0.69 and slows the shell's drag deceleration, so a heavier shell keeps more velocity at range.
AP drag coefficient0.3401
Air drag on the AP shell in flight; lower keeps velocity, and with it penetration, at long range.
AP muzzle velocity870 m/s
Starting speed of the AP shell; penetration scales with velocity^1.38.
HE muzzle velocity870 m/s
Starting speed of the HE shell; sets its flight time and lead.
idealRadius8
Horizontal dispersion growth per idealDistance of range, in 30 m units; the slope of the scatter-width line.
minRadius1.1
Horizontal dispersion at zero range, in 30 m units; the intercept of the scatter-width line.
idealDistance1,000 m
Range step over which horizontal dispersion grows by idealRadius.
taperDist4,000 m
Inside this range the scatter width tapers toward minRadius instead of following the line.
radiusOnZero0.2
Vertical scatter as a share of horizontal at zero range.
radiusOnDelim0.5
Vertical scatter as a share of horizontal at the delim point.
radiusOnMax0.6
Vertical scatter as a share of horizontal at maximum range.
delim0.5
Where the vertical-scatter curve bends, as a share of maximum range.

Torpedoes

Estimated torpedo reaction time7.7 s
1200 m / (58.0 kt × 2.6855) = 7.7 s. detectability / (speed kt x 2.6855 m/s per knot on the game clock).
Torpedo speed58.0 kt
Travel time to max range41.8 s
6510 m / (58.0 kt × 2.6855) = 41.8 s. range / (speed kt x 2.6855 m/s per knot on the game clock).
Tube count12
4 launchers × 3 tubes.
Per-side salvo6 torpedoes
12 wing tubes / 2 = 6: the launchers sit one per beam, so only half of them reach any one side. Each launcher reloads on its own, so she can fire one beam, turn, and fire the other without waiting.
Full-salvo damage134,796
All tubes hitting one target: tubes x per-torpedo simulated damage = 12 x 11,233 = 134,796. Each hit on the target's torpedo belt is reduced by its torpedo protection %.

AA defense

AA DPS at max range22
Only families that reach 3 km contribute at the outer edge of the AA bubble. In-game families: 75 50 Mle 1922 4x1 -> 22 DPS @ 3 km; 13 2 76 Hotchkiss CAQ Mle 1929 twin 6x2 -> 104 DPS @ 1.2 km.
AA DPS layered by range22 DPS @ 3 km, 126 DPS @ 1.2 km
@ 3 km: 22 from one family; @ 1.2 km: 22 + 104 = 126. 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-blank126
22 + 104 = 126 DPS: the sum of every family's average DPS, achievable only inside the closest-range family (1.2 km).
AA threat index191
22 × 3 + 104 × 1.2 = 191. 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 range1.2 km
Open in Charting Tool

Ship Charts

Background

The world's first large warship designed and built after World War I. The ship had virtually no armor protection but carried very powerful torpedo armament. An innovation that was implemented on this type of ship was the arrangement of her main guns in twin-gun superfiring turrets.

Armor Beta

Hull HP 22,900 → 26,700 with hull upgrade, distributed across 5 hull zones, each with its own plate thicknesses, saturation cap, and pen thresholds.

Bow & stern13 mm

Overmatched by 51+ AP guns across the bracket. Can’t reliably bow-tank; gets bow-citadelled and overpenned.

Farming10 mm

Superstructure and extremities take HE pens and AP overpens from nearly any gun: steady chip damage. Fire resistance 10%, fires burn 30s. Range-by-range in the Compare tool →

Section Plates HP cap Threats Tactic
Bow13 mm primary (range 13–30 mm)3,600 (13% of HP)
Overmatched by 203mm+ AP (Desert Falcon, Genova)Angle bounces 152mm13 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)14 mm20,000 (75% of HP)
Overmatched by 203mm+ AP (Desert Falcon, Genova)Angle bounces 152mm14 mm: HE pens from 127mm+
Largest HP pool. Citadel sits behind these plates; thinner deck and side plating absorb the rest.
Stern13 mm primary (range 13–20 mm)2,600 (10% of HP)
Overmatched by 203mm+ AP (Desert Falcon, Genova)Angle bounces 152mm13 mm: HE pens from 127mm+
Mirror of bow. Same fast saturation.
Citadel20 mm primary (range 13–20 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.
Superstructure10 mm primary (range 10–30 mm)1,000 (4% 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 HP13,400 magazine HPTurret knocked outPer-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 (75 mm mount)separate HP pool, does not drain ship HP200 per-mount HPDestroyed at 0 HPPer-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 HP8,000 module HPIncapacitated at 0 HPWhen 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.

Exteriors

Skins & permanent camouflages

Every custom exterior Duguay-Trouin can equip.

  • Duguay-Trouin default exterior
    DefaultThe ship’s standard exterior

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