Combat envelope
Range and detection
Every bar uses the same 20 km scale. Surface detection is a visibility threshold, not a weapon range.
Ship Database
Tier V
Battleship
Premium
Pan-America
Rio de Janeiro
In 1906, Brazil, striving to become the country with the strongest navy on the continent, ordered three ironclads from Great Britain. The development of one of them was delayed, mainly due to disputes about weapons. As a result, it was decided to arm the ship with fourteen 305 mm guns in seven turrets, which made her the record holder for the total...
Read full ship history
In 1906, Brazil, striving to become the country with the strongest navy on the continent, ordered three ironclads from Great Britain. The development of one of them was delayed, mainly due to disputes about weapons. As a result, it was decided to arm the ship with fourteen 305 mm guns in seven turrets, which made her the record holder for the total number of her main battery barrels. Rio de Janeiro was laid down in 1911, but the Brazilian government was forced to sell the ship due to the economic situation. The battleship was acquired by the Ottoman Empire, which planned to put her into operation under the name "Sultan Osman." However, due to the outbreak of World War I, the ship was "leased" by the British government and joined the Royal Navy as HMS Agincourt.
- Doubloons
- 3,500
At a glance
The numbers that shape the ship
- Hit points
- 48,400
- Maximum speed
- 22.0 knots
- Surface detection
- 14.3 km
- Main battery range
- 16.1 km
- Main battery reload
- 31.0 s
Damage comparison
Published maximum per hit
Bars are normalized only against this ship's highest listed hit. They are not salvo damage, expected damage or DPM.
Handling, concealment and protectionOverview
Handling
- Maximum speed
- 22.0 knots
- Turning circle radius
- 670 m
- Rudder shift time
- 13.4 s
Concealment
- Surface detection
- 14.3 km
- Air detection
- 10.0 km
- Submarine detection
- 10.0 km
Survivability
- Hit points
- 48,400
- Torpedo damage reduction
- 14 %
Published armour thickness
Only positive values supplied by the API are shown.
- Overall published range
- 13–305 mm
Weapons and payloadsArmament
Surface armament
Main battery
- Maximum range
- 16.1 km
- Reload time
- 31.0 s
- Rate of fire
- 1.9 rounds/min
- 180° turn time
- 45.0 s
- Maximum dispersion
- 221 m
Shells
Damage is the API's published maximum for one shell hit.
305 mm HE Mk IIa
HE- Maximum damage per hit
- 5,200
- Fire chance
- 32.0 %
- Muzzle velocity
- 831 m/s
- Shell mass
- 386 kg
305 mm AP Mk VIa
AP- Maximum damage per hit
- 8,100
- Muzzle velocity
- 831 m/s
- Shell mass
- 390 kg
Gun layout
- Mount
- 305 mm/45 Mk.XIII on a 12in "Special" mount
- Mounts
- 7
- Barrels each
- 2
Automatic armament
Secondary battery
- Maximum range
- 5.0 km
- Mount
- 152 mm HE 4 CRH
- Maximum damage per hit
- 2,200
- Fire chance
- 12.0 %
- Rate of fire
- 6.0 rounds/min
- Muzzle velocity
- 914 m/s
- Mount
- 76 mm HE Mk27
- Maximum damage per hit
- 1,100
- Fire chance
- 4.0 %
- Rate of fire
- 12.0 rounds/min
- Muzzle velocity
- 823 m/s
Modules, hull and progressionTechnical data
Default hull
- Hull hit points
- 48,400
- Main-battery barrels
- 7
- Secondary barrels
- 28
Engine
- Published maximum speed
- 22.0 knots
Fire control
Module research tree
Names, research prices and defaults are reported directly by the API.
Rio de Janeiro
Default- Type
- Hull
Mk V mod. 1
Default- Type
- Suo
Propulsion: 34,000 hp
Default- Type
- Engine
305 mm/45 Mk.XIII on a 12in "Special" mount
Default- Type
- Artillery
Compatible upgrades
Official modernization descriptions and listed purchase prices. Effects still depend on the slot and configuration used in game.
Main Armaments Modification 1
Modernization- Credits
- 125,000
Aiming Systems Modification 1
Modernization- Credits
- 500,000
Main Battery Modification 2
Modernization- Credits
- 500,000
Damage Control System Modification 1
Modernization- Credits
- 250,000
Secondary Battery Modification 1
Modernization- Credits
- 500,000
Auxiliary Armaments Modification 1
Modernization- Credits
- 125,000
- Available module groups
- 10
- Compatible upgrades
- 6
- Upgrade slots
- 3
- Published battle levels
- 5–7
Cross-nation comparison
Ships that fill a similar slot
Closest same-tier, same-class matches from other nations, ranked by published base statistics.
