GamingDiver / WoWs Legends Ships / Jervis

World of Warships: Legends ship guide

Jervis

Also called: 杰维斯 Beta

U.K. · Tier VI · Destroyer · Tech Tree: Dueling Destroyers

Smoke destroyerUse the smoke cycle to fight on your terms; shoot from cover, reset when spotted.

Playstyle

Anchor near a smoke cycle on a contested cap and trade gunfire from inside the cloud
The smoke is your sustain tool; rotating mid-smoke wastes the cycle for the next contest
Avoid: Rotating mid-smoke

Key characteristics

Lobs over islandsSmoke + SonarLong-duration sonarQuick accelerationHigh-arc HE shellsSlow torp reload

On this page

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

Community Data

Jervis Community Stats

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

Playstyle

Overview

Jervis is a Tier VI British smoke destroyer with 6 smoke charges on a short cooldown: the many smokes are the kit, setting up aggressive and defensive plays that one-smoke DDs cannot. Hold cap edges and trade gunfire from cover, then re-smoke before the next window closes. Standout traits: best Sonar duration in T6 DDs (180 s) and top-decile quick acceleration in T6 DDs (6.6 s).

Positioning

Anchor near a smoke cycle on a contested cap and trade gunfire from inside the cloud. The smoke is your sustain tool; rotating mid-smoke wastes the cycle for the next contest. 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 2.5 km, and a destroyer here is spotted at about 6.9 km, so you see it coming with roughly 4.4 km to spare. Vision is mutual: past the 2 km guaranteed ring you cannot see out either, and only your Sonar bubble (3.5 km) sees out; past that you are shooting at what a teammate holds lit. Enemy sonar (about 4.2 km) and radar (about 9 km) read straight in regardless. At 600 m the screen is wider than standard, so it can cover a teammate holding the same line as well as your own hull. Once the rudder is over she turns tightly for her cohort (590 m), so a committed turn costs less water than most of what she is fighting.

Potato Avoidance

Rotating mid-smoke

The smoke is a static firing position; if you leave it before the cycle ends, you give up the trade you set up and the next contest opens without a smoke to fall back on.

Signature Traits

ELITE SMOKE ↗

Extra smoke charges · 6 Smoke
Fast smoke cycle · 60 s

Long-duration sonar ↗

180 s Sonar duration, best of T6 DDs.

Quick acceleration ↗

~6.6 s to 90% of top speed, top decile of T6 DDs. Rebuilds speed quickly after a turn or stop, and sustains acceleration through the mid-range.

LOBBING BATTERY ↗

High-arc shells · 26.61°

Slow torp reload ↗

120 s torpedo reload, bottom decile of T6 DDs. Long wait between drops.

Short AA reach ↗

2.5 km AA reach, bottom decile of T6 DDs. Bombs and torpedoes drop before AA bites.

Acquisition

How to get Jervis

Jervis is available in the Dueling Destroyers branch of the U.K. Tech Tree for 9,000,000 credits after researching it in the branch. Known module upgrades cost up to 2,250,000 credits.

Show U.K. tech-tree branch diagram

U.K. Tech Tree

Jervis sits in the Dueling Destroyers branch. The highlighted path shows the local branch context inside the full U.K. tree.

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

U.K.IIIIIIIVVVIVIIVIII★

Destroyer

Cruiser

Cruiser Split

Battleship

Battleship Split

Carrier

Tier VRenownPBSB547 Tier VIIVanguardPBSB508 Tier VIIIDrakePBSC209 Tier VIIIDuncanPBSB209 Tier VIIAlbemarlePBSC208 Tier VIIHawkePBSB208 Tier VISurreyPBSC207 Tier VIRookePBSB207 Tier VDevonshirePBSC206 Tier IVHawkinsPBSC205 Tier IVTigerPBSB205 Tier IIIHermesPBSA204 Tier VIIITemerairePBSB112 Tier ★DaringPBSD110 Tier ★MinotaurPBSC110 Tier ★ConquerorPBSB110 Tier VIIIJutlandPBSD109 Tier VIIINeptunePBSC109 Tier VIILightningPBSD108 Tier VIIEdinburghPBSC108 Tier VIIImplacablePBSA108 Tier VIJervisPBSD107 Tier VIFijiPBSC107 Tier VIKing George VPBSB107 Tier VIcarusPBSD106 Tier VLeanderPBSC106 Tier VQueen ElizabethPBSB106 Tier VFuriousPBSA106 Tier IVAcastaPBSD105 Tier IVEmeraldPBSC105 Tier IVIron DukePBSB105 Tier IIIWakefulPBSD104 Tier IIIDanaePBSC104 Tier IIIOrionPBSB104 Tier IIValkyriePBSD103 Tier IICaledonPBSC103 Tier IWeymouthPBSC102

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 Ariadne M. Davis Grotmaz Smart

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

Cohort position

Hide ▾

Where Jervis sits among Tier VI DDs (40 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.

BestAcceleration6.6 s (1/41) Top 10%Turn speed retained93.1% (3/41) Top 25%Turning circle590 m (9/41) Top 25%AP arming threshold20 mm (7/37) Top 25%Displacement2,370 t (9/41) Bottom 25%Hit points14,300 HP (35/41) Bottom 25%Main battery caliber120 mm (33/41) Bottom 25%AP shell damage2,100 (32/37) Bottom 25%Engine power44,000 hp (36/41) Bottom 25%Turn-speed retention74.6 hp/m (33/41) Bottom 25%AP pen at 10 km45 mm (32/35) Bottom 25%AA DPS120 (33/41) Bottom 25%AA threat260 (35/41) Bottom 10%Torpedo reload120 s (39/41) WorstNo secondaries (37 of 41 in cohort) WorstAA range2.5 km (1 of 4 tied)

See 30 mid-pack stats

Not standouts for Jervis -- 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 speed36 kt(28/41) Concealment6.93 km(25/41) Smoke fire bloom2.47 km(14/41) Air detection3.47 km(25/41) Rudder shift3.5 s(19/41) Traverse-to-turn ratio5.56 ×(23/41) Main battery range10.66 km(21/41) Main battery reload5 s(23/41) HE shell damage1,700(31/41) HE fire chance8%(19/41) Fires per minute5.76(13/41) HE DPM122,400(19/41) AP DPM151,200(23/37) Main dispersion95 m(23/41) AP velocity808 m/s(26/37) HE velocity808 m/s(30/41) Power-to-weight18.57 hp/t(31/41) Effective HE DPM (incl. fire)165,474(19/41) Torpedo range8.01 km(27/41) Torpedo damage≈14,767(15/41) Torpedo speed61 kt(30/41) Torpedo reaction time7.9 s(28/41) Deck armor16 mm(14/29) NormAP fuse timer0.01 s(33 of 37 tied at this value) NormAP ricochet start45°(34 of 37 tied at this value) NormAP auto-bounce angle60°(34 of 37 tied at this value) NormMax armor16 mm(26 of 41 tied at this value) NormCitadel belt16 mm(30 of 41 tied at this value) NormBow armor16 mm(34 of 41 tied at this value) NormStern armor16 mm(34 of 41 tied at this value)

Peers in this cohort

Compare Tier VI Destroyers

Show all 40 peers

Stats & specs

Customize in the Build Tool →

Survivability

Hit PointsInitial: 11,800 → 14,300

Displacement2,370 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.

108.6 x 10.9 m (measured from the ship model)

Armor range10–16 mm

Plate armor thicknesses10, 13, 15, 16 mm

Armor material/layer entries23

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: 26.6% → 30%

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 (1,287 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 (1,430 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.

7,200

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.

4,300

Repairable: penetration50%

Repairable: steering gear50%

Main Battery

ModuleArtillery: 120 mm/45 CPXIX

Mounts / barrels3 mounts / 6 barrels

Reload time5 s

Firing range (base)9.7 km

Firing range (top fire control)10.7 km

Turret traverse10 °/s

Turret armor6 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.

±154°, ±140°

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.

26° off bow / 40° off stern

See the firing-arcs diagram ↓

HE fire DPM vs T6 BB43074

Effective HE DPM vs T6 BB165474

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{10663.4}{30} \cdot \frac{8 - 0.5}{1000} + 0.5) \cdot 30 = 95 m

95 m at 10.7 km

Max Vert Disp

Vertical dispersion ellipse height at max range:

σ_{V} = σ_{H} \cdot radiusOnMax

= 95 \cdot 0.6 = 57 m

57 m at 10.7 km

Med Horiz Disp

50%-hit horizontal radius:

σ_{H, 50} = σ_{H} \cdot \frac{0.6}{σ}

= 95 \cdot \frac{0.6}{2} = 28.5 m

28.5 m at 10.7 km

Med Vert Disp

50%-hit vertical radius:

σ_{V, 50} = σ_{V} \cdot \frac{0.6}{σ}

= 57 \cdot \frac{0.6}{2} = 17.1 m

17.1 m at 10.7 km

Turret turn time

180 degrees / 10 deg/s traverse speed = 18 s.

18 s

Shells/min

6 broadside guns x 60 / 5 s base reload = 72.

HE shells

HE Damage1,700

HE Velocity808 m/s

Fire Chance8%

HE penetration

20 mm ≈ 120 mm caliber / 6 (standard HE penetration ratio).

20 mm

HE full-salvo alpha

1,700 HE damage x 6 broadside guns = 10,200.

10,200

HE DPM

10,200 HE full-salvo alpha x 60 / 5 s base reload = 122,400.

122,400

Fires/min

72 shells/min x 8% fire chance = 5.76.

5.76

AP shells

AP Damage2,100

AP Velocity808 m/s

Min Ricochet45 deg

Guaranteed Ricochet60 deg

Fuse Timer0.01 s

Fuse Threshold20 mm

AP overmatch

floor(120 mm caliber / 14.3) = 8 mm (AP auto-penetrates plating this thick or less).

8 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 2396 \cdot {22.68}^{0.69} \cdot {0.12}^{- 1.07} \cdot 808^{1.38} = 205.3 mm

. Matches the in-game spec card.

205.3 mm point-blank

AP Pen Far

Same formula at the ship's max firing range (10.7 km), where the shell has slowed to 256.4 m/s:

P = 10^{- 7} \cdot 2396 \cdot {22.68}^{0.69} \cdot {0.12}^{- 1.07} \cdot {256.4}^{1.38} = 42.1 mm

42.1 mm at 10.7 km

AP full-salvo alpha

2,100 AP damage x 6 broadside guns = 12,600.

12,600

AP DPM

12,600 AP full-salvo alpha x 60 / 5 s base reload = 151,200.

151,200

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 Mk IX*

Launchers / tubes2 launchers × 5 tubes = 10 tubes

Reload time120 s

Projectile speed61 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 = 44, 300 \cdot 0.333 = 14, 767

≈ 14,767

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.

15,867

Torpedo detectability1.3 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{1.3 km}{61 kt \times 2.6855} = 7.9 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.

7.9 s

Flooding chance

Read straight from the game's own data: this torpedo carries a flooding-chance value of 2.65 per hit, shown as

2.65 \times 100 = 265 %

. 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.

265%

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 Arming194 m

Per-side salvo damage

One side firing, all torpedoes hitting: per-side tubes x per-torpedo simulated damage = 10 x 14,767 = 147,670.

147,670

AA Defense

AA mount points7

Maximum AA range

Longest-reaching family on the in-game AA card. Base AirDefense aura max range is 2.5 km; dual-purpose mount auras extend it.

2.5 km

40 mm/39 QF Mark VII1×4 40mm

20 mm Oerlikon Mk IV (upgraded hull only)4×1 20mm

20 mm Oerlikon Mk V (upgraded hull only)2×2 20mm

40 mm/39 QF Mark II (stock hull only)2×1 40mm

12.7 mm Mk III (stock hull only)4×4 13mm

Guns40 mm/39 QF Mark VII

Continuous DPS

Effective DPS: 11 raw aura damage × 3.5 × 1 hit probability = 38 - the same in-game units as the Close-range AA DPS headline.

Initial: 80 → 38

Range2.5 km

Guns20 mm Oerlikon Mk IV + 20 mm Oerlikon Mk V

Continuous DPS

Effective DPS: 23 raw aura damage × 3.5 × 1 hit probability = 80 - the same in-game units as the Close-range AA DPS headline.

Range2 km

Total DPS in Aura

Outer Medium 38 + Inner Medium 80 = 118

118

See the AA layers diagram ↓

Maneuverability

Engine power44,000 hp

Maximum speed36 kt

Turning circle radius590 m

Rudder shift time3.5 s

Engine power-boost threshold33.5 kt

Engine spool-up time7.7 s

Reverse spool-up time3.8 s

Reverse speed

top speed / 4 + 4.9 = 36 / 4 + 4.9 = 13.9 kt. The community reverse-speed model from the WoWs ShipBuilder project, the same source as the acceleration model on this card. Base value; speed modifiers scale it. Not shown on the in-game card.

13.9 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.

15 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).

9.8 kt

Acceleration 0-90%

Time to reach 90% of top speed (32.4 kt of 36 kt), from our in-house acceleration model.

6.6 s

Acceleration 0-99%

Time to reach 99% of top speed (35.6 kt of 36 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.

17.6 s

Traverse-to-turn ratio

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

ω_{hull} = \frac{180}{π} \cdot \frac{V_{max} (m/s)}{R_{turn}} = \frac{180}{π} \cdot \frac{36.0 \cdot 0.5144}{590} = 1.80 ° / s

, so

ratio = \frac{ω_{turret}}{ω_{hull}} = \frac{10}{1.80} = 5.6 \times

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

5.6× slow

See the full acceleration curve ↓

Concealment

Detectability by sea6.93 km

Detectability by air3.47 km

Smoke firing penalty2.47 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.

10.66 km

Detect when firing (air)

Air detectability plus the gun-firing bloom (2.4 km, which tracks main-battery caliber x 0.020). Matches the in-game 'Detect Firing Air' value on every captured ship.

5.87 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.

8.93 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.

6.47 km

Guaranteed Detect2 km

✦

Consumables

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

Smoke Generator6 charges · 60 s reload · 10 s emit / 40 s cloud active · 600 m radius

Sonar3 charges · 120 s reload · 180 s active · 3.5 km ship detect
ƒ
Derived from the consumable's 30 m grid-unit range (km = grid units x 30 / 1000): $\frac{117 \times 30}{1000} = 3.5 km$
· 2.5 km torpedo detect
ƒ
Derived from the consumable's 30 m grid-unit range (km = grid units x 30 / 1000): $\frac{83 \times 30}{1000} = 2.5 km$

Module options (3)

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

HullUpgrade

Hit points11,800 → 14,300
Rudder shift6.4 → 4.5 s
Close-range AA DPS33 → 34

Fire controlUpgrade

Main battery range9,694 → 10663.4 m

TorpedoesUpgrade

Alpha damage43,000 → 44,300
Display damage14,333 → 14,767

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 Disp95 m at 10.7 km

Horizontal dispersion ellipse width at max range, from the verified WoWS dispersion model:  $σ_{H} = (\frac{R}{30} \cdot \frac{idealRadius - minRadius}{idealDistance} + minRadius) \cdot 30$   $= (\frac{10663.4}{30} \cdot \frac{8 - 0.5}{1000} + 0.5) \cdot 30 = 95 m$

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 Disp57 m at 10.7 km

Vertical dispersion ellipse height at max range: $σ_{V} = σ_{H} \cdot radiusOnMax$ $= 95 \cdot 0.6 = 57 m$

Shell scatter height @ 10 km52.9 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  $delim \cdot R_{m a x} = 0.5 \cdot 10663.4 = 5332$  m, and  $radiusOnMax = 0.6$  at 10663.4 m. Above the kink:  $k = 0.5 + (0.6 - 0.5) \cdot \frac{10000 - 5332}{10663.4 - 5332} = 0.5876$ , so  $σ_{V} = σ_{H} \cdot k = 90 \cdot 0.5876 = 52.9 m$ .

Med Horiz Disp28.5 m at 10.7 km

50%-hit horizontal radius: $σ_{H, 50} = σ_{H} \cdot \frac{0.6}{σ}$ $= 95 \cdot \frac{0.6}{2} = 28.5 m$

Med Vert Disp17.1 m at 10.7 km

50%-hit vertical radius: $σ_{V, 50} = σ_{V} \cdot \frac{0.6}{σ}$ $= 57 \cdot \frac{0.6}{2} = 17.1 m$

Dispersion familyDD Disp.

Standard destroyer dispersion baseline.

AP Pen Close205.3 mm point-blank

Canonical community AP formula (jcw780/wows_shell), evaluated at muzzle velocity:  $P = 10^{- 7} \cdot K \cdot m^{0.69} \cdot d^{- 1.07} \cdot v_{0}^{1.38}$   $= 10^{- 7} \cdot 2396 \cdot {22.68}^{0.69} \cdot {0.12}^{- 1.07} \cdot 808^{1.38} = 205.3 mm$ . Matches the in-game spec card.

AP Pen Far42.1 mm at 10.7 km

Same formula at the ship's max firing range (10.7 km), where the shell has slowed to 256.4 m/s:  $P = 10^{- 7} \cdot 2396 \cdot {22.68}^{0.69} \cdot {0.12}^{- 1.07} \cdot {256.4}^{1.38} = 42.1 mm$ .

AP pen 5 km90 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 km45 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 km8.6 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:  $k = \frac{π C_{d} d^{2}}{8 m} = \frac{π \cdot 0.3927 \cdot {0.12}^{2}}{8 \cdot 22.68} = 9.79 \times 10^{- 5}$ . That runs from a 808 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 km8.6 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:  $k = \frac{π C_{d} d^{2}}{8 m} = \frac{π \cdot 0.3927 \cdot {0.12}^{2}}{8 \cdot 22.68} = 9.79 \times 10^{- 5}$ . That runs from a 808 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 penetration20 mm

20 mm ≈ 120 mm caliber / 6 (standard HE penetration ratio).

AP overmatch8 mm

floor(120 mm caliber / 14.3) = 8 mm (AP auto-penetrates plating this thick or less).

AP AOE Radius8

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 time18 s

180 degrees / 10 deg/s traverse speed = 18 s.

HE full-salvo alpha10,200

1,700 HE damage x 6 broadside guns = 10,200.

AP full-salvo alpha12,600

2,100 AP damage x 6 broadside guns = 12,600.

HE DPM122,400

10,200 HE full-salvo alpha x 60 / 5 s base reload = 122,400.

AP DPM151,200

12,600 AP full-salvo alpha x 60 / 5 s base reload = 151,200.

Shells/min72

6 broadside guns x 60 / 5 s base reload = 72.

Fires/min5.76

72 shells/min x 8% fire chance = 5.76.

Torpedoes

Torpedo detectability1.3 km

Estimated torpedo reaction time7.9 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 speed61 kt

Travel time to max range48.9 s

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

Torpedo module damage1,100

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 damage147,670

All tubes hitting one target: tubes x per-torpedo simulated damage = 10 x 14,767 = 147,670.

Per-side salvo damage147,670

One side firing, all torpedoes hitting: per-side tubes x per-torpedo simulated damage = 10 x 14,767 = 147,670.

AA defense

AA DPS at max range39

Only families that reach 2.5 km contribute at the outer edge of the AA bubble. In-game families: 20mm Oerlikon MK4 4x1 -> 54 DPS @ 2 km; 20mm Oerlikon MK V 2x2 -> 27 DPS @ 2 km; 2 pdr MkVII Quad 1x4 -> 39 DPS @ 2.5 km.

Maximum AA range2.5 km

Longest-reaching family on the in-game AA card. Base AirDefense aura max range is 2.5 km; dual-purpose mount auras extend it.

AA DPS layered by range39 DPS @ 2.5 km, 120 DPS @ 2 km

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

AA DPS at point-blank120

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

AA threat index260

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 Beta

Hull HP 11,800 → 14,300 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 & stern16 mm

Overmatched by 125+ AP guns across the bracket. Can’t reliably bow-tank; gets bow-citadelled and overpenned.

Farming13 mm

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

Section	Plates	HP cap	Threats	Tactic
Bow	16 mm primary (range 15–16 mm)	2,100 (15% of HP)	Overmatched by 283mm+ AP (Graf Spee, Scharnhorst)Angle bounces 203mm16 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)	16 mm	10,700 (75% of HP)	Overmatched by 283mm+ AP (Graf Spee, Scharnhorst)Angle bounces 203mm16 mm: HE pens from 127mm+	Largest HP pool. Citadel sits behind these plates; thinner deck and side plating absorb the rest.
Stern	16 mm primary (range 13–16 mm)	1,300 (9% of HP)	Overmatched by 283mm+ AP (Graf Spee, Scharnhorst)Angle bounces 203mm16 mm: HE pens from 127mm+	Mirror of bow. Same fast saturation.
Citadel	16 mm primary (range 10–16 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	13 mm primary (range 13–16 mm)	900 (6% of HP)	Any HE ≥16 mm pens at full damage	Any HE ≥16 mm pens at full damage. HE-spam target, and the section saturates fast (often only a few thousand HP).
Turret (module, per magazine)	separate HP pool, does not drain ship HP	7,200 magazine HP	Turret knocked out	Per-turret powder-magazine HP, a separate pool that does not drain ship HP. As it is worn down the turret is likelier to be knocked out, and a smaller pool gets there faster.
AA mount (40 mm mount)	separate HP pool, does not drain ship HP	200 per-mount HP	Destroyed at 0 HP	Per-mount HP for the heaviest AA on this ship. An AA mount destroyed at 0 HP stops shooting down planes for the rest of the battle; DCP does not repair destroyed mounts. HE shells specifically target AA mounts since the small-caliber HP pool falls fast.
Rudder (module)	separate HP pool, does not drain ship HP	4,300 module HP	Incapacitated at 0 HP	When module HP reaches 0 the rudder locks at its current angle until DCP repairs it. Repair via Damage Control Party.

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

Open in Charting Tool

Ship Charts

Exteriors

Skins & permanent camouflages

Every custom exterior Jervis 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.

2021-05-13 · Patch notes May Update: Things Are Heating Up! Patch notes

Jervis

Jervis Community Stats

Jervis Community Stats

Playstyle

Overview

Positioning

Potato Avoidance

Signature Traits →

How to get Jervis

Builds

Cohort position

Peers in this cohort

Stats & specs

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Main battery formulas

Torpedoes

AA defense

Armor Beta

Ship Charts

Skins & permanent camouflages

Primary official WG sources

Signature Traits