GamingDiver / WoWs Legends Ships / BA Hovercraft

World of Warships: Legends ship guide

BA Hovercraft

Beta

U.S.S.R. · Tier VII · Battleship · Premium · Vladivostok Variant

All-rounder battleshipNo standout trait, so adapt: anchor mid-range, support a brawl, or snipe as the team needs.

Playstyle

Anchor a flank at 14-17 km with bow toward the closest threat
Avoid: Spending damage control on the first fire

Key characteristics

406 mm AP overmatchHigh fire chanceSpotter planeBurny secondariesSharp rudderPattern widens fast with range

On this page

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

Community Data

BA Hovercraft Community Stats

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

Playstyle

Overview

BA Hovercraft is a Tier VII Soviet all-rounder battleship with 406mm guns at 16 km: she has no single dominant kit trait but is competent across the board. The role flexes by team comp - mid-range AP anchor by default, brawl support when the team commits, sniper when the line sits back. Versatility is the value, not specialization. Standout traits: top-decile burny secondaries in T7 BBs (15) and top-decile sharp rudder in T7 BBs (12.3 s).

Positioning

Anchor a flank at 14-17 km with bow toward the closest threat. Rotate one or two map cells with the team rather than holding solo; a battleship alone on a flank is a free focus target for the enemy. 67,500 HP is what a rotation started too late costs, and it is spent before the guns that punished it come off cooldown. The helm answers fast (12.3 s) but the circle is wide (950 m): weave to spoil aim rather than committing to turns, because a committed turn gives up more water than the quick rudder saves you.

Potato Avoidance

Spending damage control on the first fire

Almost every ship in the game repairs indefinitely, so the habit is to press it the moment anything catches; she carries 3 charges and no more. Ride a single fire when your health allows and save the charge for a flood or a multi-fire stack, because the salvo after the one you repaired is the one that sinks you.

Signature Traits

Burny secondaries ↗

15% best HE fire chance per secondary shell (before target resistance), top decile of T7 BBs. Stacks fires faster than peers in a brawl.

Sharp rudder ↗

12.3 s rudder shift, top decile of T7 BBs. Snappy weave.

ELITE MAIN BATTERY ↗

Flat AP trajectory
AP overmatch specialist
Flat-trajectory sniper

Fast DCP cycle ↗

40 s Damage Control reload, top quartile of T7 BBs. Fire / flood stacks come off cooldown sooner.

MIXED MAIN BATTERY ↗

Pattern widens fast with range
Short gun range · 16 km

Acquisition

How to get BA Hovercraft

BA Hovercraft is a Premium ship and not available to unlock in the Tech Tree. Acquisition path: Containers. Container chances are shown as the listed odds of receiving this exact ship, dividing grouped ship-pool odds across the resolved ships and including nested container paths when a crate can drop another crate.

ContainersAppears in official container odds below; availability depends on the container being sold or awarded.

Best listed chance for this ship

Blue Archive II Container 1.5% One of these ships Collaboration · Blue Archive II Container · 1 of 2 ships

Official WG availability sources

Official WoWS Legends container odds Containers Official container drop rows linked below include direct and nested effective ship odds.

Show direct source rows

Blue Archive II Container 1.5% · One of these ships

Want the full picture? Each container page charts the odds as you open more crates - including ~~pity~~ guaranteed-reward timers and, for GD Supporters, pack math personalized to your port.

Builds

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

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

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Where BA Hovercraft sits among Tier VII BBs (48 ships). Notable standouts are shown first; the rest of the cohort-ranked stats are in the expand below. Acquisition variants (Black Friday, Founders Edition) are counted once with their base ship, not as separate peers.

Top 10%Rudder shift12.3 s (2/49) Top 10%Secondary fire chance15% (2/46) Top 25%Fires per minute7.94 (11/48) Top 25%AP shell damage13,100 (11/49) Top 25%Secondary dispersion bracket37.5 (9/49) Top 25%Acceleration34.8 s (13/49) Top 25%Engine power201,000 hp (9/49) Top 25%Turn-speed retention211.6 hp/m (13/49) Top 25%Max armor425 mm (11/49) Top 25%Citadel belt370 mm (13/48) Bottom 25%Stealth profile15.5 km / 12.4 km (41/49 / 41/49) Bottom 25%Smoke fire bloom14.95 km (41/49) Bottom 25%Main battery reload27.9 s (43/49) Bottom 25%HE velocity793 m/s (43/48) Bottom 25%Displacement53,000 t (45/49) Bottom 25%AA DPS321 (43/49) Bottom 25%AA threat1,250 (39/49) Bottom 10%Turning circle950 m (47/49) Bottom 10%Sigma1.6 (47/49) WorstMain battery range16 km (49/49) WorstNo torpedoes (33 of 49 in cohort) WorstRepair charges2 (1 of 7 tied)

See 27 mid-pack stats

Not standouts for BA Hovercraft -- 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 points67,500 HP(17/49) Max speed31 kt(17/49) Traverse-to-turn ratio5.2 ×(16/49) Main battery caliber406 mm(17/49) HE shell damage5,850(16/48) HE DPM113,226(20/48) AP DPM253,548(23/49) Main dispersion223.4 m(20/49) Secondary DPM (per side)222,180(24/49) Secondary HE alpha2,100(21/46) Secondary HE pen25 mm(23/46) AP velocity793 m/s(34/49) AP arming threshold68 mm(35/49) Power-to-weight3.79 hp/t(17/49) AP pen at 10 km581 mm(19/49) Effective HE DPM (incl. fire)172,123(15/48) Secondary range6.5 km(17/49) AA range5 km(19/49) Flak per wave (expected)1,350(29/49) Deck armor40 mm(34/46) NormSecondary sigma1(48 of 49 tied at this value) NormAP fuse timer0.03 s(40 of 49 tied at this value) NormAP ricochet start45°(47 of 49 tied at this value) NormAP auto-bounce angle60°(46 of 49 tied at this value) NormRepair heal rate0.5 %/s(35 of 49 tied at this value) NormBow armor32 mm(36 of 48 tied at this value) NormStern armor32 mm(35 of 48 tied at this value)

Peers in this cohort

Compare Tier VII Battleships

Show all 48 peers

Stats & specs

Customize in the Build Tool →

Survivability

Hit Points67,500

Displacement53,000 t

Armor range19–425 mm

Plate armor thicknesses19, 25, 30, 32, 38, 40, 50, 75, 135, 180, 200, 250, 290, 325, 370, 425 mm

Armor material/layer entries53

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.

36.6%

Fire duration60 s

Fire damage

Each fire ticks 0.3% of max HP per second for the full 60 s, so one unattended fire burns 18% of the pool (12,150 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 0.5% of max HP per second for the 40 s duration, so one unattended flood costs 20% of the pool (13,500 HP on this ship). Verified against measured flood ticks in replay data.

0.5% 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.

21%

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.

36,800

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.

20,300

Effective HP

Base 67,500 HP plus everything Repair Party can restore: 0.5%/s x 28 s = 9,450 HP per charge, x2 charges = 18,900 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.

86,400

Repairable: penetration50%

Repairable: citadel10%

Repairable: steering gear50%

Main Battery

ModuleArtillery: 406 mm/45 Model 1915 OTZ

Mounts / barrels3 mounts / 9 barrels

Reload time31 s

Firing range16 km

Turret traverse5 °/s

Turret armor425 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.

2x ±150°, ±145°

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.

35° off bow / 30° off stern

See the firing-arcs diagram ↓

AP pen max range500 mm

HE fire DPM vs T7 BB52977

Effective HE DPM vs T7 BB154881

Shell Grouping (σ)1.6

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{16000}{30} \cdot \frac{13 - 1.1}{1000} + 1.1) \cdot 30 = 223.4 m

223.4 m at 16 km

Max Vert Disp

Vertical dispersion ellipse height at max range:

σ_{V} = σ_{H} \cdot radiusOnMax

= 223.4 \cdot 0.75 = 167.6 m

167.6 m at 16 km

Med Horiz Disp

50%-hit horizontal radius:

σ_{H, 50} = σ_{H} \cdot \frac{0.6}{σ}

= 223.4 \cdot \frac{0.6}{1.6} = 83.8 m

83.8 m at 16 km

Med Vert Disp

50%-hit vertical radius:

σ_{V, 50} = σ_{V} \cdot \frac{0.6}{σ}

= 167.6 \cdot \frac{0.6}{1.6} = 62.8 m

62.8 m at 16 km

Turret turn time

180 degrees / 5 deg/s traverse speed = 36 s.

36 s

Shells/min

Zero upgrades: 9 broadside guns x 60 / 31 s base reload = 17.4. All upgrades (Main Battery Mod. 3 = -10% reload): 9 broadside guns x 60 / 27.9 s all-upgrades reload = 19.4.

Initial: 17.4 → 19.4

HE shells

HE Damage5,850

HE Velocity793 m/s

Fire Chance41%

HE penetration

68 mm ≈ 406 mm caliber / 6 (standard HE penetration ratio).

68 mm

HE full-salvo alpha

5,850 HE damage x 9 broadside guns = 52,650.

52,650

HE DPM

Zero upgrades: 52,650 HE full-salvo alpha x 60 / 31 s base reload = 101,903. All upgrades (Main Battery Mod. 3 = -10% reload): 52,650 HE full-salvo alpha x 60 / 27.9 s all-upgrades reload = 113,226.

Initial: 101,903 → 113,226

Fires/min

Zero upgrades: 17.4 shells/min x 41% fire chance = 7.14. All upgrades (Main Battery Mod. 3 = -10% reload): 19.4 shells/min x 41% fire chance = 7.94.

Initial: 7.14 → 7.94

AP shells

AP Damage13,100

AP Velocity793 m/s

Min Ricochet45 deg

Guaranteed Ricochet60 deg

Fuse Timer0.033 s

Fuse Threshold68 mm

AP overmatch

floor(406 mm caliber / 14.3) = 28 mm (AP auto-penetrates plating this thick or less).

28 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 2300 \cdot 1116^{0.69} \cdot {0.406}^{- 1.07} \cdot 793^{1.38} = 766.5 mm

. Matches the in-game spec card.

766.5 mm point-blank

AP Pen Far

Same formula at the ship's max firing range (16 km), where the shell has slowed to 582 m/s:

P = 10^{- 7} \cdot 2300 \cdot 1116^{0.69} \cdot {0.406}^{- 1.07} \cdot 582^{1.38} = 500.1 mm

500.1 mm at 16 km

AP full-salvo alpha

13,100 AP damage x 9 broadside guns = 117,900.

117,900

AP DPM

Zero upgrades: 117,900 AP full-salvo alpha x 60 / 31 s base reload = 228,194. All upgrades (Main Battery Mod. 3 = -10% reload): 117,900 AP full-salvo alpha x 60 / 27.9 s all-upgrades reload = 253,548.

Initial: 228,194 → 253,548

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.

150

AA Defense

AA mount points16

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

37 mm V-116×2 37mm

37 mm 46-K10×4 37mm

100 mm/56 MZ-14 (DP)

Dual-purpose: your secondaries doing double duty against aircraft. The same mounts appear on the Secondary Battery card - shared guns, not extra hardware.

3×2 100mm

100 mm/56 MZ-14 (DP)

Dual-purpose: your secondaries doing double duty against aircraft. The same mounts appear on the Secondary Battery card - shared guns, not extra hardware.

3×2 100mm

Guns100 mm/56 MZ-14 (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 84 from dual-purpose secondaries firing as AA in this range band.

Range5 km

Guns37 mm 46-K + 37 mm V-11

Continuous DPS

Effective DPS: 90 raw aura damage × 3.5 × 0.75 hit probability = 236 - the same in-game units as the Close-range AA DPS headline.

236

Range3.5 km

Total DPS in Aura

Far 84 + Medium 236 = 320

320

Bursts

Each ~2 s wave fires 2 quick salvos of 4 clouds ahead of the attacking squadron, plus 1 stray cloud farther out that appear off-beat between waves - up to 9 clouds per wave × 200 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 × 4 clouds + 1 outer

Cloud damage

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

200

Cloud spawn chance

Each cloud in the pattern rolls this chance to spawn, so waves 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.

75%

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 secondary battery mount is operational - even losing every other AA mount does not stop it.

Secondary 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 ↓

Secondary Battery

Mounts12

Firing range6.5 km

Shell Grouping (σ)1

Secondary dispersion type

Max dispersion = range (km) × 37.5 + 30. Each dispersion type sets its own slope; this is not a percentage applied to a standard baseline.

Improved (32.5%)

Max secondary dispersion @ 6.5 km

6.5 km × 37.5 + 30 = 273.8 m.

273.8 m

Caliber100 mm

Reload time3.75 s

HE Damage1,330

Muzzle Velocity895 m/s

Fire Chance8%

Armor Pen17 mm

Show 2 more gun families

Caliber100 mm

Reload time3.75 s

HE Damage1,330

Muzzle Velocity895 m/s

Fire Chance8%

Armor Pen17 mm

Caliber152 mm

Reload time8 s

HE Damage2,100

Muzzle Velocity950 m/s

Fire Chance15%

Armor Pen25 mm

Maneuverability

Engine power201,000 hp

Maximum speed31 kt

Turning circle radius950 m

Rudder shift time12.3 s

Engine power-boost threshold7 kt

Engine spool-up time23 s

Reverse spool-up time11.5 s

Reverse speed

top speed / 4 + 4.9 = 31 / 4 + 4.9 = 12.7 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.

12.7 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.

34.1 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).

8.7 kt

Acceleration 0-90%

Time to reach 90% of top speed (27.9 kt of 31 kt), from our in-house acceleration model.

34.8 s

Acceleration 0-99%

Time to reach 99% of top speed (30.7 kt of 31 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.

55.6 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{31.0 \cdot 0.5144}{950} = 0.96 ° / s

, so

ratio = \frac{ω_{turret}}{ω_{hull}} = \frac{5}{0.96} = 5.2 \times

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

5.2× slow

See the full acceleration curve ↓

Concealment

Detectability by sea15.5 km

Detectability by air12.4 km

Smoke firing penalty14.95 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.

16 km

Detect when firing (air)

Air detectability plus the gun-firing bloom (8.22 km, which tracks main-battery caliber x 0.020). Matches the in-game 'Detect Firing Air' value on every captured ship.

20.62 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.

17.5 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.

15.4 km

Guaranteed Detect2 km

✦

Consumables

Damage Control Party3 charges · 40 s reload · 10 s active

Repair Party2 charges · 80 s reload · 28 s active · 9,450 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.
· 18,900 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.
· 338 HP/s (0.5% of max HP) heal per second
ƒ
0.5% of max HP (67,500 HP) per second = 338 HP/s. WoWS heals a flat percent of MAX HP each second, so this rate holds at any health level.

Choose one

Catapult Fighter4 charges · 80 s reload · 90 s active · 5 km patrol radius
ƒ
Derived from the consumable's 30 m grid-unit range (km = grid units x 30 / 1000): $\frac{167 \times 30}{1000} = 5 km$
· 1 squadron size

Observation Seaplane4 charges · 200 s reload · 30 s active · 1 squadron size · Tightens main-battery shell grouping

Secondary Battery Booster3 charges · 160 s reload · 30 s active · +100% grouping · -50% dispersion

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)1.6

Max Horiz Disp223.4 m at 16 km

Horizontal dispersion ellipse width at max range, from the verified WoWS dispersion model:  $σ_{H} = (\frac{R}{30} \cdot \frac{idealRadius - minRadius}{idealDistance} + minRadius) \cdot 30$   $= (\frac{16000}{30} \cdot \frac{13 - 1.1}{1000} + 1.1) \cdot 30 = 223.4 m$

Shell scatter width @ 5 km92.5 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 km152 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 width @ 15 km211.5 m

Horizontal scatter at a fixed 15 km, from the same verified dispersion model - the long-range anchor. Only shown when the ship's guns reach 15 km.

Max Vert Disp167.6 m at 16 km

Vertical dispersion ellipse height at max range: $σ_{V} = σ_{H} \cdot radiusOnMax$ $= 223.4 \cdot 0.75 = 167.6 m$

Shell scatter height @ 10 km64.1 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:  $radiusOnZero = 0.25$  at 0 m,  $radiusOnDelim = 0.4$  at  $delim \cdot R_{m a x} = 0.6 \cdot 16000 = 9600$  m, and  $radiusOnMax = 0.75$  at 16000 m. Above the kink:  $k = 0.4 + (0.75 - 0.4) \cdot \frac{10000 - 9600}{16000 - 9600} = 0.4219$ , so  $σ_{V} = σ_{H} \cdot k = 152 \cdot 0.4219 = 64.1 m$ .

Med Horiz Disp83.8 m at 16 km

50%-hit horizontal radius: $σ_{H, 50} = σ_{H} \cdot \frac{0.6}{σ}$ $= 223.4 \cdot \frac{0.6}{1.6} = 83.8 m$

Med Vert Disp62.8 m at 16 km

50%-hit vertical radius: $σ_{V, 50} = σ_{V} \cdot \frac{0.6}{σ}$ $= 167.6 \cdot \frac{0.6}{1.6} = 62.8 m$

AP Pen Close766.5 mm point-blank

Canonical community AP formula (jcw780/wows_shell), evaluated at muzzle velocity:  $P = 10^{- 7} \cdot K \cdot m^{0.69} \cdot d^{- 1.07} \cdot v_{0}^{1.38}$   $= 10^{- 7} \cdot 2300 \cdot 1116^{0.69} \cdot {0.406}^{- 1.07} \cdot 793^{1.38} = 766.5 mm$ . Matches the in-game spec card.

AP Pen Far500.1 mm at 16 km

Same formula at the ship's max firing range (16 km), where the shell has slowed to 582 m/s:  $P = 10^{- 7} \cdot 2300 \cdot 1116^{0.69} \cdot {0.406}^{- 1.07} \cdot 582^{1.38} = 500.1 mm$ .

AP pen 5 km666 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 km581 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 pen 15 km512 mm

AP penetration at a fixed 15 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 km5.07 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:  $k = \frac{π C_{d} d^{2}}{8 m} = \frac{π \cdot 0.289 \cdot {0.406}^{2}}{8 \cdot 1116} = 1.68 \times 10^{- 5}$ . That runs from a 793 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 km5.07 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:  $k = \frac{π C_{d} d^{2}}{8 m} = \frac{π \cdot 0.289 \cdot {0.406}^{2}}{8 \cdot 1116} = 1.68 \times 10^{- 5}$ . That runs from a 793 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 penetration68 mm

68 mm ≈ 406 mm caliber / 6 (standard HE penetration ratio).

AP overmatch28 mm

floor(406 mm caliber / 14.3) = 28 mm (AP auto-penetrates plating this thick or less).

AP AOE Radius150

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 alpha9

All 9 barrels bear on the broadside.

Turret turn time36 s

180 degrees / 5 deg/s traverse speed = 36 s.

HE full-salvo alpha52,650

5,850 HE damage x 9 broadside guns = 52,650.

AP full-salvo alpha117,900

13,100 AP damage x 9 broadside guns = 117,900.

HE DPMInitial: 101,903 → 113,226

Zero upgrades: 52,650 HE full-salvo alpha x 60 / 31 s base reload = 101,903. All upgrades (Main Battery Mod. 3 = -10% reload): 52,650 HE full-salvo alpha x 60 / 27.9 s all-upgrades reload = 113,226.

AP DPMInitial: 228,194 → 253,548

Zero upgrades: 117,900 AP full-salvo alpha x 60 / 31 s base reload = 228,194. All upgrades (Main Battery Mod. 3 = -10% reload): 117,900 AP full-salvo alpha x 60 / 27.9 s all-upgrades reload = 253,548.

Shells/minInitial: 17.4 → 19.4

Zero upgrades: 9 broadside guns x 60 / 31 s base reload = 17.4. All upgrades (Main Battery Mod. 3 = -10% reload): 9 broadside guns x 60 / 27.9 s all-upgrades reload = 19.4.

Fires/minInitial: 7.14 → 7.94

Zero upgrades: 17.4 shells/min x 41% fire chance = 7.14. All upgrades (Main Battery Mod. 3 = -10% reload): 19.4 shells/min x 41% fire chance = 7.94.

AA defense

AA DPS at max range84

Only families that reach 5 km contribute at the outer edge of the AA bubble. In-game families: 37mm 67 V21 6x2 -> 89 DPS @ 3.5 km; 37mm 46k 10x4 -> 148 DPS @ 3.5 km; 100mm 56 MZ 14 Left 3x2 -> 42 DPS @ 5 km; 100mm 56 MZ 14 Right 3x2 -> 42 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 range84 DPS @ 5 km, 321 DPS @ 3.5 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-blank321

Sum of every family's average DPS, achievable only inside the closest-range family (3.5 km).

AA threat index1250

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.

Secondary battery dispersion

Secondary dispersion typeImproved (32.5%)

Max dispersion = range (km) × 37.5 + 30. Each dispersion type sets its own slope; this is not a percentage applied to a standard baseline.

Max secondary dispersion @ 6.5 km273.8 m

6.5 km × 37.5 + 30 = 273.8 m.

Secondary dispersion @ 5 km217.5 m

Same per-type line evaluated at a fixed 5 km: 5 km × 37.5 + 30 = 217.5 m.

Secondary battery firepower

Secondary DPM (per side)222,180

Sum across all secondary families of (per-side barrels × 60 / reload_s × alpha), where per-side barrels = mounts × barrels-per-mount / 2 (the guns that bear on one broadside target). Per-family: 3×2 100 mm (3/side) × 60/3.75 × 1330 = 63,840 + 3×2 100 mm (3/side) × 60/3.75 × 1330 = 63,840 + 6×2 152 mm (6/side) × 60/8 × 2100 = 94,500. Assumes every shell hits (real hit rate is lower; the Brawl matchup tool on the Compare page folds in dispersion + target armor).

Max HE alpha2100

Maximum HE damage per shell across secondary HE families. Best on this ship: 2100 from the 152 mm family.

Max HE fire chance15%

Maximum per-shell fire chance across secondary HE families (before target fire resistance is applied). Best on this ship: 15% from the 152 mm family.

Max HE pen25 mm

Maximum HE armor penetration across secondary HE families (caliber × 1/6 for most nations; 1/4 for German/UK BBs). Shells whose pen falls under a plate's armor thickness shatter for 0 hull damage though fire chance still applies. Best on this ship: 25 mm from the 152 mm family.

Armor Beta

Hull HP 67,500, distributed across 5 hull zones, each with its own plate thicknesses, saturation cap, and pen thresholds. HP caps are estimated from the standard WoWs damage-allocation model.

Bow & stern32 mm

Overmatched by AP from only MusashiARP Musashi. Angled, everything else bounces.

Belt / citadel370 mm

Citadels come from a flat broadside at close range; held past ~30° of angle, AP shatters or bounces.

Farming19 mm

Superstructure and extremities take HE pens and AP overpens from nearly any gun: steady chip damage. Fire resistance 37%, fires burn 60s. Range-by-range in the Compare tool →

Section	Plates	HP cap	Threats	Tactic
Bow	32 mm primary (range 32–200 mm)	≈ 3,375 (~5% of HP)	Overmatched by 460mm+ AP (Aki, Musashi)Angle bounces 410mm32 mm: HE pens from 203mm+	Bow-tank fits behind this exterior plate. Saturation is FAST here; the cap is often only a few thousand HP.
Hull (midship)	50 mm primary (range 25–425 mm)	≈ 50,625 (~75% of HP)	No common AP caliber overmatches50 mm: most HE shatters, standard pen from 305mm+	Largest HP pool. Citadel sits behind these plates; thinner deck and side plating absorb the rest.
Stern	32 mm primary (range 32–200 mm)	≈ 3,375 (~5% of HP)	Overmatched by 460mm+ AP (Aki, Musashi)Angle bounces 410mm32 mm: HE pens from 203mm+	Mirror of bow. Same fast saturation.
Citadel	370 mm primary (range 30–370 mm)	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 primary (range 19–40 mm)	no cap	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).

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.

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

DefaultThe ship’s standard exterior
Blue Archive
Ba VladivostokBlue Archive

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Filtered to official World of Warships: Legends pages where this ship is a focus, reward, line member, or high-context variant mention.

2025-08-04 · Official ship feature / stats Blue Archive Is Back in Legends! Official source

BA Hovercraft

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Main battery formulas

AA defense

Secondary battery dispersion

Secondary battery firepower

Armor Beta

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Signature Traits