Phra Ruang Build & Guide | WoWs Legends

Playstyle

Overview

Phra Ruang is a Tier II Pan-Asian stealth-leaning destroyer with strong surface detection (5.5 km). The kit opens detection windows most peer DDs cannot match, so her value is contesting caps from concealment edges where the detection band holds. AA (56 AA DPS at 2.5 km) is heavy enough to make her the team's air-defense anchor on top of the lead role; CV strikes route around her, not through. Standout traits: best top speed in T2 DDs (36 kt).

Positioning

Hold concealment edges on the contested cap at 5.5 km detection. The band opens windows for unspotted torpedo drops and clean repositions; lean into the gaps your peer DDs cannot read, and back out before detection closes.

Potato Avoidance

Burning the 5.5 km concealment advantage on guns

Every salvo lights you up and gives back the detection edge that makes the kit work; reserve guns for finishing damage on already-spotted ships, and prioritize torpedo drops you can fire while undetected. A second mistake to avoid: these torpedoes ignore the Destroyer class - they pass under DDs and cannot hit them. Aim torpedo drops ONLY at battleships, carriers, and most cruisers; every torp fired at a DD is wasted output.

Signature Traits

Deep-water torpedoes

Torps IGNORE the Destroyer class (deep-water mechanic); they pass under DDs and cannot hit them. Aim ONLY at battleships, carriers, and most cruisers; every torp fired at a DD is wasted, shared by 2/20 T2 DDs.

Fast for the class

36.0 kt, best of T2 DDs. Lets you rotate flanks or escape disengagements.

Holds speed in turns

64.4 hp per metre of turn radius, top decile of T2 DDs. Engine power overpowers lateral drag, so speed loss in sustained turns is mild.

Top-tier AA

56.0 AA DPS, top decile of T2 DDs (median 10.0).

Heavy powerplant

29000.0 hp engine, top decile of T2 DDs. More headroom for accelerating out of stops and maintaining speed in turns.

Slow HE shells

664.0 m/s HE muzzle velocity, bottom decile of T2 DDs. Lobby trajectory, harder to land at range.

Acquisition

How to get Phra Ruang

Phra Ruang is available in the Capital Ship Destroyers branch of the Pan-Asia Tech Tree for 13,000 credits after researching it in the branch. Known module upgrades cost up to 2,600 credits.

Show Pan-Asia tech-tree branch diagram

Pan-Asia Tech Tree

Phra Ruang sits in the Capital Ship Destroyers branch. The highlighted path shows the local branch context inside the full Pan-Asia tree.

7 ships in highlighted branch · scroll to inspect all Pan-Asia lines.

Pan-AsiaIIIIIIIVVVIVIIVIII★

Destroyer

Cruiser

Tier ★JinanPZSC110 Tier VIIIChung MuPZSD109 Tier VIIISejongPZSC109 Tier VIIHsienyangPZSD108 Tier VIIHarbinPZSC108 Tier VIGadjah MadaPZSD107 Tier VIChumphonPZSC107 Tier VFushunPZSD106 Tier VRahmatPZSC106 Tier IVJianweiPZSD105 Tier IVChungkingPZSC105 Tier IIIShenyangPZSD104 Tier IIPhra RuangPZSD103 Tier IShi AnPZSC102

Builds Beta

Use a Pan destroyer commander that supports concealment, survivability, and the ship's main damage plan. Inspirations that improve concealment, torpedo reliability, gun reload, or engine/smoke uptime are natural fits.

Open in Build Tool →

Have a build you swear by? Open it in the Build Tool and hit Save build to share it here.

Cohort position

Hide ▾

Where Phra Ruang sits among Tier II DDs (20 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.

BestMax speed36 kt (1 of 3 tied) Top 10%Main dispersion73.5 m (3/20) Top 10%Engine power29,000 hp (3/20) Top 10%Turn-speed retention64.4 hp/m (2/20) Top 10%AA DPS56 (3/20) Top 10%AA threat140 (2/16) Top 25%Power-to-weight24.01 hp/t (6/20) Top 25%Torpedo damage10,000 (5/20) Bottom 25%Main battery range8.58 km (17/20) Bottom 25%AP shell damage1,500 (15/18) Bottom 25%Torpedo speed50 kt (17/20) WorstTraverse-to-turn ratio3.39 × (20/20) WorstAP velocity664 m/s (1 of 2 tied) WorstHE velocity664 m/s (1 of 2 tied) WorstMax armor6 mm (1 of 7 tied) WorstCitadel belt6 mm (1 of 7 tied) WorstEnd plates6 mm (1 of 10 tied / 1 of 8 tied) WorstDeck armor6 mm (1 of 8 tied)

See 19 mid-pack stats

Not standouts for Phra Ruang -- 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.

Hit points8,700 HP(11/20) Concealment5.5 km(8/20) Air detection2.76 km(8/20) Rudder shift3 s(9/20) Main battery caliber102 mm(9/20) Main battery reload5 s(14/20) HE shell damage1,500(8/20) HE fire chance6%(9/20) Fires per minute2.16(14/20) HE DPM54,000(14/20) AP DPM54,000(13/18) Acceleration9.8 s(9/20) AP arming threshold17 mm(9/18) Displacement1,208 t(12/20) AA range2.5 km(7/20) Torpedo range7.32 km(8/20) Torpedo reload40 s(13/20) NormAP fuse timer0.01 s(16 of 18 tied at this value) NormAP ricochet start45°(17 of 18 tied at this value)

Peers in this cohort

Show all 19 peers

Stats & specs

Customize in the Build Tool →Shell ballistics chart More tools in the WoWS Legends Data Lab

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

SmokeEngine Boost

Survivability

Hit PointsInitial: 7,900 → 8,700

Displacement1,208 t

Armor range6–6 mm

Plate armor thicknesses6 mm

Armor material/layer entries22

Fire resistanceInitial: 0% → 3.3%

Fire duration30 s

Torp Reduction0%

Magazine HP

ƒ

The magazine is the module a detonation comes from. Penetrating hits to it raise the detonation chance from 1% toward 30% as its HP is worn down, so a larger magazine pool rides out citadel hits longer before a detonation becomes likely.

4,400

Steering gear HP

ƒ

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.

2,600

Main Battery

ModuleArtillery: 102 mm/40 PIX

Mounts / barrels3 mounts / 3 barrels

Reload time5.5 s

Firing range (base)7.8 km

Firing range (top fire control)8.6 km

Turret traverse8 °/s

Shell Grouping (σ)

ƒ

Shell grouping (sigma); shown in-game as Shell Grouping.

2

Max Horiz Disp

ƒ

Horizontal dispersion ellipse width at max range. (R/30·(idealRadius−minRadius)/idealDistance + minRadius)·30 = (7797/30·(8−0.5)/1000 + 0.5)·30 = 73.5 m

73.5 m

Max Vert Disp

ƒ

Vertical dispersion ellipse height at max range = max horizontal × radiusOnMax = 73.5 × 0.6 = 44.1 m

44.1 m

Med Horiz Disp

ƒ

50%-hit horizontal radius = max horizontal × GetHalfHitsRatio(σ) = 73.5 × 0.32 (σ=2) = 23.5 m

23.5 m

Med Vert Disp

ƒ

50%-hit vertical radius = max vertical × GetHalfHitsRatio(σ) = 44.1 × 0.32 (σ=2) = 14.1 m

14.1 m

Turret turn time

ƒ

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

22.5 s

Base shells/min

ƒ

3 broadside guns x 60 / 5.5 s base reload = 32.7.

32.7

HE shells

HE Damage1,500

HE Velocity664 m/s

Fire Chance6%

HE penetration

ƒ

17 mm ≈ 102 mm caliber / 6 (standard HE penetration ratio).

17 mm

HE full-salvo alpha

ƒ

1,500 HE damage x 3 broadside guns = 4,500.

4,500

Base HE DPM

ƒ

4,500 HE full-salvo alpha x 60 / 5.5 s base reload = 49,091.

49,091

Base fires/min

ƒ

3 HE shells x 60 / 5.5 s reload x 6% fire chance = 1.96.

1.96

AP shells

AP Damage1,500

AP Velocity664 m/s

Min Ricochet45 deg

Guaranteed Ricochet60 deg

Fuse Timer0.01 s

Fuse Threshold17 mm

AP overmatch

ƒ

floor(102 mm caliber / 14.3) = 7 mm (AP auto-penetrates plating this thick or less).

7 mm

AP Pen Close

ƒ

Canonical community AP formula (jcw780/wows_shell), evaluated at muzzle velocity: 1e-7 × Krupp × mass^0.69 × caliber_m^-1.07 × v0^1.38 = 1e-7 × 1900 × 14.1^0.69 × 0.102^-1.07 × 664^1.38 = 106.4 mm. Matches the in-game spec card.

106.4 mm

AP Pen Far

ƒ

Same formula at the ship's max firing range (10.7 km), where the shell has slowed to 228.7 m/s: 1e-7 × 1900 × 14.1^0.69 × 0.102^-1.07 × 228.7^1.38 = 24.5 mm.

24.5 mm

AP full-salvo alpha

ƒ

1,500 AP damage x 3 broadside guns = 4,500.

4,500

Base AP DPM

ƒ

4,500 AP full-salvo alpha x 60 / 5.5 s base reload = 49,091.

49,091

AP AOE Radius

ƒ

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.

3

◇

Torpedoes

ModuleTorpedoes: 533 mm DR Mk II

Launchers / tubes2 launchers × 2 tubes = 4 tubes

Reload time40 s

Projectile speed50 kt

Range7.32 km

Maximum simulated damage9,100 (est.)

Alpha damage27,300

Torpedo detectability1.1 km

Torpedo launcher traverse25 °/s

Torp Turn7.2 s

Torp Arming154 m

Deep-Water TorpedoesYes

Per-side salvo damage

ƒ

per-side salvo x per-torpedo simulated damage.

36,400

AA Defense

AA mount pointsInitial: 1 → 3

Close-range AA DPS

ƒ

Sum across every AA aura on this ship of (aura.continuous_damage x 3.5 x aura.hit_probability). Here: (16×3.5×1) = 56. Covers AA-only mounts plus dual-purpose secondaries (Bismarck 105mm, USN 5"/38 cruiser secondaries) and dual-purpose main batteries (Sumner-class 5"/38, Akizuki-line 100mm). Formula validated against in-game captures on California, Sumner, Manfred von Richthofen, Dante Alighieri (exact) and within +/-17% on the remaining verified ships.

56

Maximum AA range

ƒ

Longest-reaching aura across AA-only + dual-purpose auras.

2.5 km

40 mm/39 QF Mark IIInitial: 1×1 → 3×1 40mm

DPSInitial: 3 → 16

Range2.5 km

Maneuverability

Engine moduleEngine: 29,000 hp

Engine power29,000 hp

Maximum speed36 kt

Turning circle radius450 m

Engine power multiplier speed threshold7 kt

Traverse-to-turn ratio3.4× drags

Concealment

Detectability by sea5.5 km

Detectability by air2.76 km

Smoke firing penalty2 km

Detect after firing main guns5.5 km

Detect Fire Sea7.5 km

Detect Fire Air5.76 km

Guaranteed Detect2 km

✦

Consumables

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

Smoke Generator4 charges · 120 s reload · 15 s emit / 70 s cloud active

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 points7,900 → 8,700
Rudder shift4.3 → 3 s
AA mounts1 → 3
Close-range AA DPS3 → 16

Fire controlUpgrade

Main battery range7,797 → 8576.7 m

See all derived stats

Show ▾

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

Shell grouping (sigma); shown in-game as Shell Grouping.

Max Horiz Disp73.5 m

Horizontal dispersion ellipse width at max range. (R/30·(idealRadius−minRadius)/idealDistance + minRadius)·30 = (7797/30·(8−0.5)/1000 + 0.5)·30 = 73.5 m

Max Vert Disp44.1 m

Vertical dispersion ellipse height at max range = max horizontal × radiusOnMax = 73.5 × 0.6 = 44.1 m

Med Horiz Disp23.5 m

50%-hit horizontal radius = max horizontal × GetHalfHitsRatio(σ) = 73.5 × 0.32 (σ=2) = 23.5 m

Med Vert Disp14.1 m

50%-hit vertical radius = max vertical × GetHalfHitsRatio(σ) = 44.1 × 0.32 (σ=2) = 14.1 m

Dispersion familyDD Disp.

Standard destroyer dispersion baseline.

AP Pen Close106.4 mm

Canonical community AP formula (jcw780/wows_shell), evaluated at muzzle velocity: 1e-7 × Krupp × mass^0.69 × caliber_m^-1.07 × v0^1.38 = 1e-7 × 1900 × 14.1^0.69 × 0.102^-1.07 × 664^1.38 = 106.4 mm. Matches the in-game spec card.

AP Pen Far24.5 mm

Same formula at the ship's max firing range (10.7 km), where the shell has slowed to 228.7 m/s: 1e-7 × 1900 × 14.1^0.69 × 0.102^-1.07 × 228.7^1.38 = 24.5 mm.

HE penetration17 mm

17 mm ≈ 102 mm caliber / 6 (standard HE penetration ratio).

AP overmatch7 mm

floor(102 mm caliber / 14.3) = 7 mm (AP auto-penetrates plating this thick or less).

AP AOE Radius3

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 alpha3

All 3 barrels bear on the broadside.

Turret turn time22.5 s

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

HE full-salvo alpha4,500

1,500 HE damage x 3 broadside guns = 4,500.

AP full-salvo alpha4,500

1,500 AP damage x 3 broadside guns = 4,500.

Base HE DPM49,091

4,500 HE full-salvo alpha x 60 / 5.5 s base reload = 49,091.

Base AP DPM49,091

4,500 AP full-salvo alpha x 60 / 5.5 s base reload = 49,091.

Base shells/min32.7

3 broadside guns x 60 / 5.5 s base reload = 32.7.

Base fires/min1.96

3 HE shells x 60 / 5.5 s reload x 6% fire chance = 1.96.

Torpedoes

Torpedo detectability1.1 km

Estimated torpedo reaction time8.5 s

detectability / (speed kt x 2.6 community game-speed factor).

Torpedo speed50 kt

Travel time to max range56.3 s

range / (speed kt x 2.6 community game-speed factor).

Tube count4

2 launchers x 2 tubes.

Per-side salvo4 torpedoes

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

Full-salvo damage36,400

tube count x per-torpedo simulated damage (all torpedoes hitting).

Per-side salvo damage36,400

per-side salvo x per-torpedo simulated damage.

AA defense

Close-range AA DPS56

Sum across every AA aura on this ship of (aura.continuous_damage x 3.5 x aura.hit_probability). Here: (16×3.5×1) = 56. Covers AA-only mounts plus dual-purpose secondaries (Bismarck 105mm, USN 5"/38 cruiser secondaries) and dual-purpose main batteries (Sumner-class 5"/38, Akizuki-line 100mm). Formula validated against in-game captures on California, Sumner, Manfred von Richthofen, Dante Alighieri (exact) and within +/-17% on the remaining verified ships.

Maximum AA range2.5 km

Longest-reaching aura across AA-only + dual-purpose auras.

AA threat index140

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.

Armor

Hull HP 7,900 → 8,700 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.

Section	Plates	HP cap	Threats	Tactic
Bow	6 mm	1,300 (15% of HP)	Overmatched by 127mm+ (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.
Stern	6 mm	1,100 (13% of HP)	Overmatched by 127mm+ (Farragut, Shenyang)6 mm: HE pens from 127mm+	Mirror of bow. Same fast saturation.
Citadel	6 mm	≈ 165,500 (effectively no cap)	Citadel pen ×0.50 damageOver-pen: ×0.10 damage	Effectively no cap; citadel pool sits at ~165k HP on every ship. Damage is gated by pen/over-pen multipliers instead (×0.50 direct pen, ×0.10 over-pen).
Superstructure	6 mm	200 (2% 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	4,400 magazine HP	Magazine detonation1–30% chance · below ~75% HP	Per-turret powder-magazine HP. Detonation chance scales from 1% (no mag damage) to 30% (full mag damage); this range is the in-game value. Detonation can't roll while the ship is above ~75% HP (the standard detonation-protection threshold, not a per-ship stat). Smaller magazines saturate to the 30% ceiling faster.
AA mount (40 mm mount)	separate HP pool, does not drain ship HP	200 per-mount HP	Destroyed at 0 HP	Per-mount HP for the heaviest AA on this ship. An AA mount destroyed at 0 HP stops shooting down planes for the rest of the battle; DCP does not repair destroyed mounts. HE shells specifically target AA mounts since the small-caliber HP pool falls fast.
Rudder (module)	separate HP pool, does not drain ship HP	2,600 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.

Shell ballistics chart

AP penetration, impact velocity, flight time and impact angle vs range. Click to load the interactive chart.

Exteriors

Skins & permanent camouflages

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

DefaultThe ship’s standard exterior

Phra Ruang

Phra Ruang Community Stats