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Puerto Rico
Cruiser | U.S.A. | Tier X
Tech Tree Position
Purchase price34,650 Credits
Hit Points71,650 
Main Battery
305 mm/50 Mk.8 in a turret4 х 3 pcs.
Rate of Fire2.73 shots/min.
Reload Time22 sec.
Rotation Speeddeg./sec.
180 Degree Turn Time30 sec.
Firing Range18.81 km.
Maximum Dispersion248 m.
HE Shell305 mm HE Mk17 mod. 1 
Maximum HE Shell Damage4,300 
Chance of Fire on Target Caused by HE Shell27 %
Initial HE Shell Velocity808 m./s.
HE Shell Weight462.3 kg.
AP Shell305 mm AP Mk18 mod. 1 
Maximum AP Shell Damage8,900 
Initial AP Shell Velocity762 m./s.
AP Shell Weight517 kg.
Secondary Armament #1
127 mm/54 Mk.16 on a Mk.41 mount8 х 2 pcs.
Firing Range7.3 km.
Rate of Fire15 shots/min.
Reload Timesec.
HE Shell127 mm HE Mk41 
Maximum HE Shell Damage1,800 
Initial HE Shell Velocity808 m./s.
Chance of Fire on Target Caused by HE Shell%
AA Defense
127 mm/54 Mk.16 on a Mk.41 mount8 х 2 pcs.
. . . Average Damage per Second125.6 
. . . Firing Range5.19 km.
40 mm/56 Bofors on a Mk.2 mount16 х 4 pcs.
. . . Average Damage per Second254.4 
. . . Firing Range3.51 km.
20 mm Oerlikon on a Mk.4 mount26 х 1 pcs.
. . . Average Damage per Second93.6 
. . . Firing Range2.01 km.
Maximum Speed33.5 knot
Turning Circle Radius910 m.
Rudder Shift Time15.9 sec.
Surface Detectability Range16.56 km.
Air Detectability Range11.16 km.
Battle Levels

Puerto Rico — American Tier X cruiser.

The design project that preceded the creation of the "large Alaska-class cruisers". The CA2-D variant was designed with twelve 305 mm main battery guns.

Puerto Rico was the reward for the first Dockyard event during Christmas 2019. She has not been available since.


Main Battery Guns Rate of Fire
180° Turn Time
Maximum Dispersion
Maximum HE Shell Damage
Chance of Fire on Target Caused by HE Shell
Maximum AP Shell Damage
Research price
Purchase price
305 mm/50 Mk.8 in a turret2.7302484,300278,900 00
Hull Hit Points
Main Turrets
Secondary Gun Turrets
AA Mounts
Torpedo Tubes
Hangar Capacity
Research price
Purchase price
Puerto Rico71,650163254816/26/8 00
Fire Control System Firing Range Increase
Maximum Firing Range
Research price
Purchase price
Mk10 mod. 1018.8 00
Engine Maximum Speed
Research price
Purchase price
Propulsion: 212,000 hp33.5 00

Compatible Upgrades

 Slot 1  Main Armaments Modification 1 Auxiliary Armaments Modification 1 Magazine Modification 1 Spotting Aircraft Modification 1 Damage Control Party Modification 1
 Slot 2  Damage Control System Modification 1 Defensive AA Fire Modification 1 Hydroacoustic Search Modification 1 Surveillance Radar Modification 1 Engine Room Protection
 Slot 3  Main Battery Modification 2 Secondary Battery Modification 1 AA Guns Modification 1 Aiming Systems Modification 1
 Slot 4  Damage Control System Modification 2 Propulsion Modification 1 Steering Gears Modification 1 Airstrike Modification 1
 Slot 5  Torpedo Lookout System Concealment System Modification 1 Steering Gears Modification 2 Ship Consumables Modification 1
 Slot 6  Main Battery Modification 3 Gun Fire Control System Modification 2 Auxiliary Armaments Modification 2

Player Opinion


Puerto Rico is a Tier X American large cruiser. Over her lower tier'ed relative, Alaska, Puerto Rico offers slightly improved protection and a fourth main gun turret, as well as superior Anti-Air protection. She does however come with her weaknesses.

With her twelve 305mm rifles throwing super-heavy AP shells, Puerto Rico offers the heaviest broadside available to any cruiser in World of Warships. Captains who are used to Alaska will feel at home with the handling of these weapons, but will also find that Puerto Rico's accuracy leaves something to be desired. It is noticeably worse than that of Alaska, leading to dispersion trolling the player at times. Puerto Rico's maximum range is better than average for Tier X, but still inferior to battleships.

Puerto Rico's resilience against incoming damage is decent for a super-cruiser. She sports a high health pool, right in between Kronshtadt and Stalingrad, while also having a reinforced midsection. Her case-mate deck is 38mm thick, which is enough to shatter a lot of HE rounds as well as being capable of auto-bouncing any AP shell in the game. It should be noted however that the upper belt, which connects the 254mm main belt with the 38mm upper deck, is only 30mm thick, meaning that lucky shells with a caliber of 431mm+ such as those from Republique, Yamato, and Georgia can over-match through that strip and deal normal penetration damage. Like the other large cruisers, Puerto Rico burns for the full duration of 60s (before modifiers), making her vulnerable against fire damage. Use of survivability-enhancing commander skills such as Fire Prevention and modules such as Damage Control System Modification 2 Accelerates fire extinguishing and recovery from flooding: -15% flooding recovery time. / -15% fire duration. is advised.

Against aircraft Puerto Rico offers a strong AA-suite, further enhanced by the Defensive AA FireWhile active, the damage per second of large caliber anti-aircraft guns is increased. consumable. However, by itself her AA is average for her tier and doesn't grant immunity against skilled carrier players, and her large size and sluggish performance will make dodging incoming ordinance difficult.

Play-style wise Puerto Rico should be played like an active, kiting cruiser. Use her speed to flank, gaining access to ships' sides to capitalize on the heavy AP broadside. If no such shot is possible, the player should resort to using HE shells to deal damage against angled cruisers or battleships, while seeking another opportunity to flank the enemy (though plunging AP can still score the occasional good hit). While Puerto Rico has access to the Surveillance RadarWhile active, detects all enemy ships within the specified radius, disregarding obstacles such as smoke and terrain. consumable, it is not recommended to actively push in the first half of the match as disengaging in a pinch will be nearly impossible, and a trip back to port imminent. For a similar reason it is not recommended to play her like a bow-tanking ship, similar to Stalingrad, as the balanced gun layout and the lack of heavy case-mate protection will result in less than ideal performance. Remember that she has 12 rifles aft as well as those forward, so kiting can be a useful tactic at times.

It should be noted that Puerto Rico can be played close-in (not recommended), as a camper (lower muzzle velocity), or as a long-distance kiter as mentioned above (preferred). This presents many different options for build-out, and captains should consider carefully which tools will be most useful based on play-style.


  • Huge health pool for a cruiser
  • Twelve 305mm rifles give great alpha damage potential and have better than average range for her tier. Her AP shells are capable of citadeling broadside battleships doing massive damage.
  • Good turret traverse.
  • Decent fire-starting potential with HE.
  • Many consumable options, including radar.
  • Decent armor, for a cruiser.
  • Like most USN vessels, she has strong AA.


  • Due to her size, she is not agile.
  • Battleship dispersion and slow reload, coupled with average dispersion.
  • Lousy base concealment.
  • Vulnerable to fire.
  • Vulnerable to broadside damage and to focused battleship fire in any orientation.


As a special ship, Puerto Rico doesn't have any modules to research.

Optimal Configuration


The recommended upgrades for Puerto Rico are as follows:

Slot 1: With Gun Fire Control System Modification 2 and the Spotting Aircraft consumable, the main battery range can be extended to 25.5km! Mounting Spotting Aircraft Modification 1 Increases the action time of the Spotting Aircraft and Rapid Takeoff Spotter consumables.: +30% action time. here extends the action time of the Spotting Aircraft to 130 seconds. Those wishing to play the long-range sniper role will find this build useful.

Slot 2: There are several interesting build options in this slot, boosting the action time of Defensive AA Fire, Hydroacoustic Search, or radar. The Surveillance Radar Modification 1 Increases the action time of the Surveillance Radar consumable.:  +20% action time. may be the most useful alternative.

Slot 3: Mount Aiming Systems Modification 1 for playing at range. In close, Main Battery Modification 2 Increases the traverse speed of the main turrets: +15% to main battery traverse speed. may prove more useful in responding to targets of opportunity. A full AA build (of questionable utility) would include AA Guns Modification 1 Improves AA efficiency: +20% reduction in the preparation time of the priority AA sector..

Slot 4: This slot can be used to address one of Puerto Rico's weakness: vulnerability to fire and flood or poor agility. Damage Control System Modification 2 mitigates the effects of such damage. Steering Gears Modification 1 Reduces rudder shift time: -20% rudder shift time. or Propulsion Modification 1 Reduces time to full speed: -50% to time for reaching full power. / Increases engine power when the ship starts moving. can help avoid that damage in the first place. With an active play-style, this slot is captain's choice.

Slot 5: Again, Torpedo Lookout System Increases the assured acquisition range of torpedoes. to a base value of 1.8 km. or Steering Gears Modification 2 Reduces rudder shift time and accelerates the repair of steering gears: -40% rudder shift time. / -80% repair time. can aid in avoiding damage, but with a high base detectability range, Concealment may be the better option. Captain's choice.

Slot 6: Played at range, the improved reload time will more than compensate for the slower turret traverse. But since a Range build is a reasonable option, consider Gun Fire Control System Modification 2 Extends the firing range of the main battery: +16% firing range..

Commander Skills


Puerto Rico can equip the following consumables:


As a premium ship, Puerto Rico comes with Type 20 permanent camouflage that lowers her detection radius, reduces the accuracy of incoming shells, reduces her service cost by 50%, and increases her earned CreditsCredits by 20% and ExperienceShip XP by 100%.


Note: Use of the Juliet Charlie signal makes detonation impossible.


Historical Info

Historical Gallery


  1. Alaska-class cruiser - Wikipedia

Ship Change Log

See here for links to Update notes.

  • Available for testing by supertesters in the game starting from Update 0.8.8.

Testing Changes

  • Aug 16, 2019:
    • Preliminary characteristics.
  • Oct 14, 2019:
    • Sigma parameter was changed from 1.9 to 2.2.
  • Nov 1, 2019:
    • Detectability range by sea decreased from 17.6 to 16.56 km.
    • Detectability range by air decreased from 11.86 to 11.16 km.
    • Detectability after firing main guns in smoke decreased from 14.27 to 13.15 km.
  • Available via completing the Dockyard in Update 0.8.11.
  • Update 0.9.1:
    • Fixed display of secondary battery in the characteristics of the ship.
  • Update 0.10.0:
    • The firing range of the secondary battery was increased to 7.3 km.
  • Update 0.11.3:
    • Minor fixes to geometry and textures of the ship.

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