GamingDiver / WoWs Legends Ships / Delny

World of Warships: Legends ship guide

Delny

Also called: 德尔尼 · Дельный Beta

U.S.S.R. · Tier VIII · Destroyer · Tech Tree: Fiery Destroyers

Gunboat destroyerWins cap trades with gun output; the torpedoes are a bonus, not the core threat.

Playstyle

Hold mid-cap distance and lean into gunboat trades from cover where the peer destroyer cannot match your fires-per-minute
Avoid: Trading guns in open water against peer DDs

Key characteristics

SmokeEngine BoostThickest plateHeavy powerplantLong heal windowEasily spotted

On this page

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

Community Data

Delny Community Stats

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

Playstyle

Overview

Delny is a Tier VIII Soviet gunboat destroyer: her damage comes from sustained main battery pressure on caps and open-water trades. Torpedoes are a secondary threat for closing lanes, not her main damage. Her 130mm guns reload in 4.5 s, so the damage comes from staying in the trade rather than from any one salvo. Standout traits: best engine power in T8 DDs (150,000 HP) and best power per turn radius in T8 DDs (197.4 HP).

Positioning

Hold mid-cap distance and lean into gunboat trades from cover where the peer destroyer cannot match your fires-per-minute. Avoid open-water duels with ships running smoke or radar; the torpedoes are a closer, not the plan, so gunfire from cover wins more than from blue water. Concretely: 11.1 km of reach against 7.6 km of detection leaves about 3.5 km in which you can shoot before the answer arrives. 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. Shooting from the cloud gives you away at 2.9 km, and a destroyer here is spotted at about 7 km, so you see it coming with roughly 4.1 km to spare. Vision is mutual: past the 2 km guaranteed ring you cannot see out either, and nothing in her kit sees through it, so pop the smoke where someone is already lighting the enemy or you will sit in it with nothing to shoot. Enemy sonar (about 4.7 km) and radar (about 9 km) read straight in regardless. Both phases of a turn are slow (5 s on the rudder, a 760 m circle), so course changes are a plan rather than a reaction: set the angle before you are shot at.

Potato Avoidance

Trading guns in open water against peer DDs

Your damage is sustained main-battery pressure from cover (the torpedoes are a secondary threat), so open-water duels just stack incoming HE on you while you fire back. You are visible from 7.6 km with 22,000 HP to spend, so the second ship to join the trade decides it.

Signature Traits

Engine Boost

+8% speed (about +3.5 kt), 120 s duration. Engine Boost consumable lifts top speed enough to open or close a gap deliberately, though not to outrun a committed chase.

ELITE ARMOR ↗

Thickest plate · 50 mm
Heavy citadel belt · 50 mm

ELITE MOBILITY ↗

Heavy powerplant · 150000 hp
Holds speed in turns · 197.4 hp
Nimble for the tonnage · 34.67 hp

Long heal window ↗

28 s Repair Party duration, best of T8 DDs. Restores HP for longer per activation.

Easily spotted ↗

7.6 km surface detect, worst of T8 DDs. Visible before you can react; position early.

Acquisition

How to get Delny

Delny is available in the Fiery Destroyers branch of the U.S.S.R. Tech Tree for 25,000,000 credits after researching it in the branch. Known module upgrades cost up to 6,250,000 credits.

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

U.S.S.R. Tech Tree

Delny sits in the Fiery Destroyers branch. The highlighted path shows the local branch context inside the full U.S.S.R. tree.

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

U.S.S.R.IIIIIIIVVVIVIIVIII★

Destroyer

Destroyer Split

Cruiser

Cruiser Split

Battleship

Carrier

Tier VIIINeustrashimyPRSD709 Tier VIIIDelnyPRSD410 Tier VIITashkentPRSD409 Tier VIIIPetropavlovskPRSC310 Tier IVSoobrazitelnyPRSD304 Tier VGorkyPRSC216 Tier IVKotovskyPRSC215 Tier VIIRigaPRSC209 Tier VITallinnPRSC208 Tier VIMinskPRSD207 Tier VGnevnyPRSD206 Tier IVPodvoiskyPRSD205 Tier ★KhabarovskPRSD110 Tier VIKievPRSD109 Tier VIIIDm. DonskoiPRSC109 Tier VIIISov. SoyuzPRSB109 Tier VIIChapayevPRSC108 Tier VIIVladivostokPRSB108 Tier VIIPobedaPRSA108 Tier VIIUdaloiPRSD107 Tier VIShchorsPRSC107 Tier VISinopPRSB107 Tier VBoevoiPRSD106 Tier VBudyonnyPRSC106 Tier VIzmailPRSB106 Tier VSerovPRSA106 Tier IVKirovPRSC105 Tier IVPyotr VelikiyPRSB105 Tier IIIIzyaslavPRSD104 Tier IIISvietlanaPRSC104 Tier IIIGangutPRSB104 Tier IIIKomsomoletsPRSA104 Tier IIDerzkiPRSD103 Tier IIBogatyrPRSC103 Tier INovikPRSC102

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 Delny sits among Tier VIII DDs (26 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.

BestEngine power150,000 hp (1 of 2 tied) BestTurn-speed retention197.4 hp/m (1 of 2 tied) BestPower-to-weight34.67 hp/t (1 of 2 tied) BestMax armor50 mm (1 of 2 tied) BestCitadel belt50 mm (1 of 2 tied) Top 25%Hit points22,000 HP (5/27) Top 25%Max speed43.5 kt (4/27) Top 25%HE shell damage2,050 (6/26) Top 25%AP shell damage2,850 (7/25) Top 25%AP velocity950 m/s (7/25) Top 25%HE velocity950 m/s (5/26) Top 25%AP pen at 10 km93 mm (7/25) Top 25%Torpedo reaction time6.8 s (6/26) Bottom 25%Smoke fire bloom2.9 km (23/27) Bottom 25%Rudder shift5 s (23/27) Bottom 25%Turning circle760 m (25/27) Bottom 25%Main dispersion98.2 m (23/27) Bottom 25%Displacement4,327 t (23/27) Bottom 25%Torpedo range8.01 km (21/26) Bottom 25%Torpedo damage≈13,400 (21/26) Bottom 25%Torpedo speed60 kt (21/26) WorstStealth profile7.61 km / 3.81 km (1 of 2 tied / 1 of 2 tied) WorstRepair heal rate0.5 %/s (1 of 2 tied)

See 22 mid-pack stats

Not standouts for Delny -- 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.

Traverse-to-turn ratio8.89 ×(21/27) Main battery caliber130 mm(9/27) Main battery range11.1 km(9/27) Main battery reload4.5 s(20/27) HE fire chance8%(11/26) Fires per minute6.4(16/26) HE DPM164,000(16/26) AP DPM228,000(16/25) Acceleration16.9 s(9/27) AP fuse timer0.01 s(14/25) AP arming threshold22 mm(19/25) Effective HE DPM (incl. fire)216,462(16/26) AA DPS216(15/27) AA range5 km(15/27) AA threat831(15/27) Flak per wave (expected)960(17/22) Torpedo reload140 s(20/26) Deck armor19 mm(11/21) NormAP ricochet start45°(19 of 25 tied at this value) NormAP auto-bounce angle60°(19 of 25 tied at this value) NormTurn speed retained81%(23 of 27 tied at this value) NormBow armor19 mm(26 of 27 tied at this value)

Peers in this cohort

Compare Tier VIII Destroyers

Show all 26 peers

Stats & specs

Customize in the Build Tool →

Survivability

Hit PointsInitial: 20,000 → 22,000

Displacement4,327 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.

140 x 13.7 m

Armor range13–50 mm

Plate armor thicknesses13, 19, 20, 50 mm

Armor material/layer entries21

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 (1,980 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 (2,200 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.

11,400

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.

6,800

Effective HP

Base 22,000 HP plus everything Repair Party can restore: 0.5%/s x 28 s = 3,080 HP per charge, x2 charges = 6,160 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.

28,160

Repairable: penetration50%

Repairable: steering gear50%

Main Battery

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

ModuleArtillery: 130 mm/60 BL-101

Mounts / barrels3 mounts / 6 barrels

Reload time5 s

Firing range (base)10.1 km

Firing range (top fire control)11.1 km

Turret traverseInitial: 13 °/s → 15 °/s

Turret armor12 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 ±152°

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.

28° off bow / 28° off stern

See the firing-arcs diagram ↓

HE fire DPM vs T8 BB47216

Effective HE DPM vs T8 BB184016

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{11099}{30} \cdot \frac{8 - 0.5}{1000} + 0.5) \cdot 30 = 98.2 m

98.2 m at 11.1 km

Max Vert Disp

Vertical dispersion ellipse height at max range:

σ_{V} = σ_{H} \cdot radiusOnMax

= 98.2 \cdot 0.6 = 58.9 m

58.9 m at 11.1 km

Med Horiz Disp

50%-hit horizontal radius:

σ_{H, 50} = σ_{H} \cdot \frac{0.6}{σ}

= 98.2 \cdot \frac{0.6}{2} = 29.5 m

29.5 m at 11.1 km

Med Vert Disp

50%-hit vertical radius:

σ_{V, 50} = σ_{V} \cdot \frac{0.6}{σ}

= 58.9 \cdot \frac{0.6}{2} = 17.7 m

17.7 m at 11.1 km

Turret turn time

180 degrees / 13 deg/s traverse speed = 13.8 s.

13.8 s

Shells/min

Zero upgrades: 6 broadside guns x 60 / 5 s base reload = 72. All upgrades (top hull shells + Main Battery Mod. 3 = -10% reload): 6 broadside guns x 60 / 4.5 s all-upgrades reload = 80.

Initial: 72 → 80

HE shells

HE Damage1,900 → 2,050

HE Velocity950 m/s

Fire Chance8%

HE penetration

22 mm ≈ 130 mm caliber / 6 (standard HE penetration ratio).

22 mm

HE full-salvo alpha

Zero upgrades: 1,900 HE damage x 6 broadside guns = 11,400. All upgrades (top hull shells + Main Battery Mod. 3 = -10% reload): 2,050 HE damage x 6 broadside guns = 12,300.

Initial: 11,400 → 12,300

HE DPM

Zero upgrades: 11,400 HE full-salvo alpha x 60 / 5 s base reload = 136,800. All upgrades (top hull shells + Main Battery Mod. 3 = -10% reload): 12,300 HE full-salvo alpha x 60 / 4.5 s all-upgrades reload = 164,000.

Initial: 136,800 → 164,000

Fires/min

Zero upgrades: 72 shells/min x 8% fire chance = 5.76. All upgrades (top hull shells + Main Battery Mod. 3 = -10% reload): 80 shells/min x 8% fire chance = 6.4.

Initial: 5.76 → 6.4

AP shells

AP Damage2,600 → 2,850

AP Velocity950 m/s

Min Ricochet45 deg

Guaranteed Ricochet60 deg

Fuse Timer0.01 s

Fuse Threshold22 mm

AP overmatch

floor(130 mm caliber / 14.3) = 9 mm (AP auto-penetrates plating this thick or less).

9 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 1900 \cdot {33.4}^{0.69} \cdot {0.13}^{- 1.07} \cdot 950^{1.38} = 244 mm

. Matches the in-game spec card.

244 mm point-blank

AP Pen Far

Same formula at the ship's max firing range (11.1 km), where the shell has slowed to 440.8 m/s:

P = 10^{- 7} \cdot 1900 \cdot {33.4}^{0.69} \cdot {0.13}^{- 1.07} \cdot {440.8}^{1.38} = 84.6 mm

84.6 mm at 11.1 km

AP full-salvo alpha

Zero upgrades: 2,600 AP damage x 6 broadside guns = 15,600. All upgrades (top hull shells + Main Battery Mod. 3 = -10% reload): 2,850 AP damage x 6 broadside guns = 17,100.

Initial: 15,600 → 17,100

AP DPM

Zero upgrades: 15,600 AP full-salvo alpha x 60 / 5 s base reload = 187,200. All upgrades (top hull shells + Main Battery Mod. 3 = -10% reload): 17,100 AP full-salvo alpha x 60 / 4.5 s all-upgrades reload = 228,000.

Initial: 187,200 → 228,000

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.

Torpedoes

ModuleTorpedoes: 533 mm PTA-53-68-bis

Launchers / tubes2 launchers × 5 tubes = 10 tubes

Reload time140 s

Projectile speed60 kt

Range8.01 km

Maximum simulated damage

Estimate of WG's in-game value; matches the in-game port screen within ±5%. Saturation: most targets only intersect one hull section, so the sim transfers ~1/3 of the warhead alpha (2/3 when the warhead blast >= 5000 and the burst reaches a second section). For this ship:

D_{sim} = α \cdot c = 40, 200 \cdot 0.333 = 13, 400

≈ 13,400

Maximum damage (ammunition)

The ammunition card's 'Maximum Damage' stat, exact: warhead alpha / 3 plus the blast addend. This is the per-torpedo number most references quote; the 'Maximum simulated damage' row above is WG's separate geometry-sim stat from the launcher spec panel.

14,400

Torpedo detectability1.1 km

Reaction time

How long a target has to dodge after your torpedo is spotted at its detectability range (lower means less warning):

t_{react} = \frac{1.1 km}{60 kt \times 2.6855} = 6.8 s

. The 2.6855 m/s-per-knot game-speed factor is calibrated from in-game measurement; the community's traditional 2.6 reads about 3% slower. Base value; commander torpedo-concealment skills lower it further. Community torpedo-reaction calculator by u/LorenDovah and u/The_ColorOutofSpace.

6.8 s

Flooding chance

Read straight from the game's own data: this torpedo carries a flooding-chance value of 2.4 per hit, shown as

2.4 \times 100 = 240 %

. Torpedo flood 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. Not shown on the in-game port screen.

240%

Torpedo launcher traverse25 °/s

Torp Turn

Time to rotate the launchers 180 deg:

t_{turn} = \frac{180 °}{25 ° / s} = 7.2 s

7.2 s

Torp Arming191 m

Per-side salvo damage

One side firing, all torpedoes hitting: per-side tubes x per-torpedo simulated damage = 10 x 13,400 = 134,000.

134,000

AA Defense

AA mount points5

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.

5 km

45 mm SM-20-ZIF3×4 45mm

25 mm 4M-1202×4 25mm

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 60 from dual-purpose main battery firing as AA in this range band.

Range5 km

Guns45 mm SM-20-ZIF

Continuous DPS

Effective DPS: 34 raw aura damage × 3.5 × 1 hit probability = 119 - the same in-game units as the Close-range AA DPS headline.

119

Range3.5 km

Total DPS in Aura

Far 60 + Medium 119 = 179

179

Guns25 mm 4M-120

Continuous DPS

Effective DPS: 11 raw aura damage × 3.5 × 0.95 hit probability = 37 - the same in-game units as the Close-range AA DPS headline.

Range3.1 km

Total DPS in Aura

Far 60 + Medium 119 + Near 37 = 216

216

Bursts

Each ~2 s wave fires 2 quick salvos of 2 clouds ahead of the attacking squadron - up to 4 clouds per wave × 240 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.

2 salvos × 2 clouds

Cloud damage

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

240

Cloud spawn chance

Every potential cloud spawns - the full pattern, every wave. Often called flak 'hit chance', but spawned clouds always damage planes that fly into them - the roll is on spawning.

100%

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 5 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.

2.5-5 km

See the AA layers diagram ↓

Maneuverability

Engine power150,000 hp

Maximum speed43.5 kt

Turning circle radius760 m

Rudder shift time5 s

Engine power-boost threshold7 kt

Engine spool-up time7.7 s

Reverse spool-up time3.8 s

Reverse speed

top speed / 4 + 4.9 = 43.5 / 4 + 4.9 = 15.8 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.

15.8 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.

14 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).

13.1 kt

Acceleration 0-90%

Time to reach 90% of top speed (39.1 kt of 43.5 kt), from our in-house acceleration model.

16.9 s

Acceleration 0-99%

Time to reach 99% of top speed (43.1 kt of 43.5 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.

28.4 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{43.5 \cdot 0.5144}{760} = 1.69 ° / s

, so

ratio = \frac{ω_{turret}}{ω_{hull}} = \frac{13}{1.69} = 7.7 \times

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

7.7× ok

See the full acceleration curve ↓

Concealment

Detectability by sea7.61 km

Detectability by air3.81 km

Smoke firing penalty2.9 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 (2.6 km, which tracks main-battery caliber x 0.020). Matches the in-game 'Detect Firing Air' value on every captured ship.

6.41 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.

9.61 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.

6.81 km

Guaranteed Detect2 km

✦

Consumables

Damage Control Party∞ charges · 40 s reload · 5 s active

Choose one

Smoke Generator2 charges · 240 s reload · 20 s emit / 89 s cloud active · 450 m radius

Repair Party2 charges · 80 s reload · 28 s active · 3,080 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.
· 6,160 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.
· 110 HP/s (0.5% of max HP) heal per second
ƒ
0.5% of max HP (22,000 HP) per second = 110 HP/s. WoWS heals a flat percent of MAX HP each second, so this rate holds at any health level.

Engine Boost2 charges · 180 s reload · 120 s active · +8% speed bonus

Module options (2)

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

HullUpgrade

Hit points20,000 → 22,000
Rudder shift8.5 → 6.5 s
Turret traverse13 → 15 °/s

Fire controlUpgrade

Main battery range10,090 → 11,099 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

Max Horiz Disp98.2 m at 11.1 km

Horizontal dispersion ellipse width at max range, from the verified WoWS dispersion model:  $σ_{H} = (\frac{R}{30} \cdot \frac{idealRadius - minRadius}{idealDistance} + minRadius) \cdot 30$   $= (\frac{11099}{30} \cdot \frac{8 - 0.5}{1000} + 0.5) \cdot 30 = 98.2 m$

Shell scatter width @ 5 km52.5 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 km90 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 Disp58.9 m at 11.1 km

Vertical dispersion ellipse height at max range: $σ_{V} = σ_{H} \cdot radiusOnMax$ $= 98.2 \cdot 0.6 = 58.9 m$

Shell scatter height @ 10 km52.2 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  $delim \cdot R_{m a x} = 0.5 \cdot 11099 = 5550$  m, and  $radiusOnMax = 0.6$  at 11099 m. Above the kink:  $k = 0.5 + (0.6 - 0.5) \cdot \frac{10000 - 5550}{11099 - 5550} = 0.5802$ , so  $σ_{V} = σ_{H} \cdot k = 90 \cdot 0.5802 = 52.2 m$ .

Med Horiz Disp29.5 m at 11.1 km

50%-hit horizontal radius: $σ_{H, 50} = σ_{H} \cdot \frac{0.6}{σ}$ $= 98.2 \cdot \frac{0.6}{2} = 29.5 m$

Med Vert Disp17.7 m at 11.1 km

50%-hit vertical radius: $σ_{V, 50} = σ_{V} \cdot \frac{0.6}{σ}$ $= 58.9 \cdot \frac{0.6}{2} = 17.7 m$

Dispersion familyDD Disp.

Standard destroyer dispersion baseline.

AP Pen Close244 mm point-blank

Canonical community AP formula (jcw780/wows_shell), evaluated at muzzle velocity:  $P = 10^{- 7} \cdot K \cdot m^{0.69} \cdot d^{- 1.07} \cdot v_{0}^{1.38}$   $= 10^{- 7} \cdot 1900 \cdot {33.4}^{0.69} \cdot {0.13}^{- 1.07} \cdot 950^{1.38} = 244 mm$ . Matches the in-game spec card.

AP Pen Far84.6 mm at 11.1 km

Same formula at the ship's max firing range (11.1 km), where the shell has slowed to 440.8 m/s:  $P = 10^{- 7} \cdot 1900 \cdot {33.4}^{0.69} \cdot {0.13}^{- 1.07} \cdot {440.8}^{1.38} = 84.6 mm$ .

AP pen 5 km149 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 km93 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.

HE flight time @ 10 km5.54 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:  $k = \frac{π C_{d} d^{2}}{8 m} = \frac{π \cdot 0.2906 \cdot {0.13}^{2}}{8 \cdot 33} = 5.84 \times 10^{- 5}$ . That runs from a 950 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.

AP flight time @ 10 km5.54 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:  $k = \frac{π C_{d} d^{2}}{8 m} = \frac{π \cdot 0.2941 \cdot {0.13}^{2}}{8 \cdot 33.4} = 5.84 \times 10^{- 5}$ . That runs from a 950 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 penetration22 mm

22 mm ≈ 130 mm caliber / 6 (standard HE penetration ratio).

AP overmatch9 mm

floor(130 mm caliber / 14.3) = 9 mm (AP auto-penetrates plating this thick or less).

AP AOE Radius12

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 alpha6

All 6 barrels bear on the broadside.

Turret turn time13.8 s

180 degrees / 13 deg/s traverse speed = 13.8 s.

HE full-salvo alphaInitial: 11,400 → 12,300

Zero upgrades: 1,900 HE damage x 6 broadside guns = 11,400. All upgrades (top hull shells + Main Battery Mod. 3 = -10% reload): 2,050 HE damage x 6 broadside guns = 12,300.

AP full-salvo alphaInitial: 15,600 → 17,100

Zero upgrades: 2,600 AP damage x 6 broadside guns = 15,600. All upgrades (top hull shells + Main Battery Mod. 3 = -10% reload): 2,850 AP damage x 6 broadside guns = 17,100.

HE DPMInitial: 136,800 → 164,000

Zero upgrades: 11,400 HE full-salvo alpha x 60 / 5 s base reload = 136,800. All upgrades (top hull shells + Main Battery Mod. 3 = -10% reload): 12,300 HE full-salvo alpha x 60 / 4.5 s all-upgrades reload = 164,000.

AP DPMInitial: 187,200 → 228,000

Zero upgrades: 15,600 AP full-salvo alpha x 60 / 5 s base reload = 187,200. All upgrades (top hull shells + Main Battery Mod. 3 = -10% reload): 17,100 AP full-salvo alpha x 60 / 4.5 s all-upgrades reload = 228,000.

Shells/minInitial: 72 → 80

Zero upgrades: 6 broadside guns x 60 / 5 s base reload = 72. All upgrades (top hull shells + Main Battery Mod. 3 = -10% reload): 6 broadside guns x 60 / 4.5 s all-upgrades reload = 80.

Fires/minInitial: 5.76 → 6.4

Zero upgrades: 72 shells/min x 8% fire chance = 5.76. All upgrades (top hull shells + Main Battery Mod. 3 = -10% reload): 80 shells/min x 8% fire chance = 6.4.

Torpedoes

Torpedo detectability1.1 km

Estimated torpedo reaction time6.8 s

detectability / (speed kt x 2.6855 game-speed factor, m/s per knot, calibrated from in-game measurement; the community's traditional 2.6 reads about 3% slower).

Torpedo speed60 kt

Travel time to max range49.7 s

range / (speed kt x 2.6855 game-speed factor, m/s per knot, calibrated from in-game measurement).

Torpedo module damage1,000

Per-torpedo module/blast damage parameter from in-game data. 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; the exact module-HP conversion is not published.

Tube count10

2 launchers x 5 tubes.

Per-side salvo10 torpedoes

10 (centerline launchers train across - full salvo to either side).

Full-salvo damage134,000

All tubes hitting one target: tubes x per-torpedo simulated damage = 10 x 13,400 = 134,000.

Per-side salvo damage134,000

One side firing, all torpedoes hitting: per-side tubes x per-torpedo simulated damage = 10 x 13,400 = 134,000.

AA defense

AA DPS at max range60

Only families that reach 5 km contribute at the outer edge of the AA bubble. In-game families: 45mm SM 20 Zif 3x4 -> 119 DPS @ 3.5 km; 25mm 4M120 2x4 -> 37 DPS @ 3.1 km; Far AA (?) -> 60 DPS @ 5 km.

Maximum AA range5 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 range60 DPS @ 5 km, 179 DPS @ 3.5 km, 216 DPS @ 3.1 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-blank216

Sum of every family's average DPS, achievable only inside the closest-range family (3.1 km).

AA threat index831

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 range3.1 km

Armor Beta

Hull HP 20,000 → 22,000 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 & stern19 mm

Overmatched by 132+ AP guns across the bracket. Can’t reliably bow-tank; gets bow-citadelled and overpenned.

Belt / citadel50 mm

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

Farming19 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	19 mm primary (range 19–20 mm)	2,000 (9% of HP)	Overmatched by 283mm+ AP (Scharnhorst '43, Schill)Angle bounces 203mm19 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)	19 mm primary (range 19–20 mm)	17,000 (77% of HP)	Overmatched by 283mm+ AP (Scharnhorst '43, Schill)Angle bounces 203mm19 mm: HE pens from 127mm+	Largest HP pool. Citadel sits behind these plates; thinner deck and side plating absorb the rest.
Stern	19 mm primary (range 19–20 mm)	1,900 (9% of HP)	Overmatched by 283mm+ AP (Scharnhorst '43, Schill)Angle bounces 203mm19 mm: HE pens from 127mm+	Mirror of bow. Same fast saturation.
Citadel	50 mm primary (range 13–50 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	19 mm	2,900 (13% 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	11,400 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 (45 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	6,800 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 Delny. Cards are condensed; use each source link for full context.

Nerf ×6Buff ×6Main Battery ×5Torpedo ×2Concealment ×2

2023-03-02

Ministry of Balance Reports: Buffs, Nerfs, and Commanders

Delny is proving to be a tricky ship, and we're aiming to reduce her overall damage output without changing her main battery firepower.
Maximum torpedo damage reduced from 15,100 to 14,400.
Torpedo launcher reload time increased from 129 to 140 s.
Torpedo speed reduced from 65 to 60 kts.
Torpedo detectability range reduced from 1.2 to 1.1 km.

Read the full official post

2022-11-03

November Update: Under the Black Flag

Maximum main battery HE shell damage increased from 1,900 to 2,050; maximum AP shell damage increased from 2,600 to 2,850.
Main battery reload time increased from 4 to 5 s.
Main battery 180° turn time increased, from 9 to 13.8 s from 9 to 12 s.
Donskoi fell back further than Roon did and is receiving significant buffs all around. This should aid her survivability and average damage, as well as her utility to the team.
HP for upgraded hull increased from 43,400 to 47,400.
Radar consumable duration increased from 20 to 25 s.
Sonar consumable stats changed: Duration increased from 96 to 98 s.
, torpedo detectability increased from 3.1 to 3.3 km.
, ship detection increased from 4.4 to 4.7 km.

Read the full official post

Exteriors

Skins & permanent camouflages

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

DefaultThe ship’s standard exterior

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.

2022-07-14 · Official ship feature / stats Strive for Greatness: Tier VIII development blog Official source 2022-07-21 · Patch notes Anniversary Update: New Horizons Patch notes

Delny

Delny Community Stats

Delny Community Stats

Playstyle

Overview

Positioning

Potato Avoidance

Signature Traits →

How to get Delny

Builds

Cohort position

Peers in this cohort

Stats & specs

See all derived stats

Main battery formulas

Torpedoes

AA defense

Armor Beta

Ship Charts

Balance History

Ministry of Balance Reports: Buffs, Nerfs, and Commanders

November Update: Under the Black Flag

Skins & permanent camouflages

Primary official WG sources

Signature Traits