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World of Warships Supertest: British Tier VII Battleship Rooke

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Historical background

Rooke is based on the J3 design of battlecruiser made by the Royal Navy during the 1921 Fleet modernization program. The J3 design was meant as a follow-on to the Admiral-class battlecruisers and incorporated all the lessons learned from World War I, especially with the Battle of Jutland.

With these new battlecruisers, the British Admiralty wanted something that would match the American Lexington-class battlecruisers, especially in terms of speed. Another limitation was, obviously, that the ships would be able to fit in British available dockyards.

The first designs, K2 and K3 were gigantic ships displacing around 53 000 tons and armed with 18-inch guns. The problem was that they could only achieve 30 knots and only 2 dockyards would have been able to house them. J3, on the other hand, saved 10 000 tons, still had an improved armament over Hood, could reach 32 knots, and could pass through the Suez and Panama Canals.
Sadly, the designs would be abandoned in favor of the I3 and G3 designs that were more compact, better optimized in terms of armor and tonnage, and even had better firepower.

In the end, with the Washington Naval Treaty of 1922, all these designs were abandoned because of the limitations that needed to be respected.

If you want to learn more about the J3 design as well as the other battlecruisers designs from the Royal Navy, here is a video from Drachinifel covering them:

In World of Warships, we are getting a fairly good representation of the J3 design. Compared to most of the line, her torpedo tubes are above the water though. As for the rest, she has the classic characteristics of battlecruisers and she gets a Defensive AA Fire consumable compared to the previous ships.

Ship’s preview

Ship’s camouflage

For the classic reminder, this is a ship in testing, anything can change so don’t look at her like she would already be released.

Modules

Hull
Engine
Gun Fire Control System
Main battery
Torpedoes

icon_module_Hull_installed

Rooke (A)

icon_module_Engine_installed

Propulsion: 151 000 HP

icon_module_Suo_installed

Mk VII mod. 1

icon_module_Artillery_installed

381 mm/45 Mk.VII on a Mk.III mount

icon_module_Torpedoes_installed

‎533 mm Mk IX

icon_module_Hull_installed

Rooke (B)

icon_module_Suo_installed

Mk VII mod. 2

Stock Ship

General Characteristics

Tier VII
Health 52 600 HP
Torpedo Damage Reduction 13 %
Displacement 35 682 tons
Dimensions
Overall length 262.12 m
Beam 30.1 m
Overall height (keel to the highest point on the ship) 25.0 m
Freeboard 9.2 m
Main Armament
Maximum Firing Range 15.910 km
381 mm/45 Mk.VII on a Mk.III mount 3 x 3 381 mm
Secondary Armament
Maximum Firing Range 5.600 km
152 mm/50 BL Mk.XXII on a Mk.XVIII mount
113 mm/45 QF Mk.I/III on an RP10 Mark II BD mount
8 x 2 152 mm
6 x 2 113 mm
Torpedo Armament
Maximum Firing Range 8.000 km
533 mm PR Mk II
4 x 1 533 mm
Maximum speed 31.9 knots
Turning Circle Radius 950 m
Rudder Shift Time 20.5 s
Surface Detectability 13.38 km
Air Detectability 11.21 km
Detectability After Firing Main Guns in Smoke 12.33 km

Main Armament

3 x 3 381 mm/45 Mk.VII on a Mk.III mount
 Maximum Firing Range 15.910 km
 Reloading Time 30.0 s
180 Degree Turn Time 30.0 s
Optimal firing angles at the front 30°
Optimal firing angles at the rear 28°
Sigma 1.5 sigma
Maximum Dispersion 181 m
Shells
Type of Projectile  HE – 381 mm HE Mk VIIIc
Alpha Damage 5 350
Penetration capacity  64 mm
Explosion size 2.23
Fire chance 34 %
Projectile Speed 836 m/s
Air Drag 0.338
Projectile Mass 879.0 kg
Type of Projectile AP – 381 mm AP Mk XIIIb
Alpha Damage 11 900
Projectile Speed 836 m/s
Air Drag 0.338
Projectile Mass 879.0 kg
Projectile Krupp 2 250
Projectile Detonator 0.015 s
Detonator threshold 64 mm
Ricochet Angles 45° – 60°

Secondary Armament

8 x 2 152 mm/50 BL Mk.XXII on a Mk.XVIII mount
Maximum Firing Range 5.600 km
Reloading Time 12.0 s
Sigma 1.0 sigma
Shells
Type of Projectile HE – 152 mm HE Mk V
Alpha Damage 2 150
HE penetration 25 mm
Explosion Size 0.54
Chance to Cause Fire 9 %
Projectile Speed 884 m/s
Air Drag 0.362
Projectile Mass 50.8 kg
6 x 2 113 mm/45 QF Mk.I/III on an RP10 Mark II BD mount
Maximum Firing Range 5.600 km
Reloading Time 5.0 s
Sigma 1.0 sigma
Shells
Type of Projectile HE – 113 mm HE 5crh
Alpha Damage 1 700
HE penetration 19 mm
Explosion Size 0.38
Chance to Cause Fire 8 %
Projectile Speed 746 m/s
Air Drag 0.329
Projectile Mass 24.95 kg

Torpedo Armament

4 x 1 533 mm PR Mk II
533 mm Mk IX*
Reloading Time 95 s
Maximum Distance 8.000 km
Optimal firing angle at the front 80°
Optimal firing angle at the rear 80°
Damage 15 867
Flooding Chance 265%
Speed 61 knots
Surface Detectability 1.3 km

Anti-air Armament

6 x 2 113 mm/45 QF Mk.I/III on an RP10 Mark II BD mount
Sector range 0.1 km – 5.8 km
Hit chance 75 %
Sector’s damage 19
Sector’s damage frequency 0.29 s
Sector’s damage per second 67
Flak clouds number 3
Flak cloud damage 1 260
10 x 4 40 mm/39 Vickers QF Mk.VIII on a Mk.VII mount
Sector range 0.1 km – 2.5 km
Hit chance 75 %
Sector’s damage 76
Sector’s damage frequency 0.29 s
Sector’s damage per second 266
8 x 1 20 mm Oerlikon Mk.I on a Mk.IIIA mount
8 x 1 20 mm Oerlikon Mk.I on a Mk.IIA mount
Sector range 0.1 km – 2.0 km
Hit chance 70 %
Sector’s damage 37
Sector’s damage frequency 0.29 s
Sector’s damage per second 130

Consumables

Slot 1
Slot 2
Slot 3
Slot 4
Damage Control Party
consumable_PCY009_CrashCrewPremiumWork time: 15 s
Cooldown: 80 s
Repair Party
Number of charges: 4
Work time: 28 s
Cooldown: 80 s
HP regeneration speed: +0.5%/s
Casemate damage regeneration: 50%
Citadel damage regeneration: 10%
Engine Boost
Number of charges: 3
Work time: 120 s
Cooldown: 120 s
Speed bonus: +8%
Defensive AA Fire

Number of charges: 3
Work time: 40 s
Cooldown: 80 s
Damage from continuous DPS: +50%
Damage from flak explosions: +300%

Fully Upgraded Ship

General Characteristics

Tier VII
Health 59 200 HP
Torpedo Damage Reduction 13 %
Displacement 41 082 tons
Dimensions
Overall length 262.12 m
Beam 30.1 m
Overall height (keel to the highest point on the ship) 25.0 m
Freeboard 9.2 m
Main Armament
Maximum Firing Range 17.501 km
381 mm/45 Mk.VII on a Mk.III mount 3 x 3 381 mm
Secondary Armament
Maximum Firing Range 5.600 km
152 mm/50 BL Mk.XXII on a Mk.XVIII mount
113 mm/45 QF Mk.I/III on an RP10 Mark II BD mount
8 x 2 152 mm
6 x 2 113 mm
Torpedo Armament
Maximum Firing Range 8.000 km
533 mm PR Mk II
4 x 1 533 mm
Maximum speed 31.9 knots
Turning Circle Radius 950 m
Rudder Shift Time 14.7 s
Surface Detectability 13.38 km
Air Detectability 11.21 km
Detectability After Firing Main Guns in Smoke 12.33 km

Main Armament

3 x 3 381 mm/45 Mk.VII on a Mk.III mount
 Maximum Firing Range 17.501 km
 Reloading Time 30.0 s
180 Degree Turn Time 30.0 s
Optimal firing angles at the front 30°
Optimal firing angles at the rear 28°
Sigma 1.5 sigma
Maximum Dispersion 195 m
Shells
Type of Projectile  HE – 381 mm HE Mk VIIIc
Alpha Damage 5 350
Penetration capacity  64 mm
Explosion size 2.23
Fire chance 34 %
Projectile Speed 836 m/s
Air Drag 0.338
Projectile Mass 879.0 kg
Type of Projectile AP – 381 mm AP Mk XIIIb
Alpha Damage 11 900
Projectile Speed 836 m/s
Air Drag 0.338
Projectile Mass 879.0 kg
Projectile Krupp 2 250
Projectile Detonator 0.015 s
Detonator threshold 64 mm
Ricochet Angles 45° – 60°

Secondary Armament

8 x 2 152 mm/50 BL Mk.XXII on a Mk.XVIII mount
Maximum Firing Range 5.600 km
Reloading Time 12.0 s
Sigma 1.0 sigma
Shells
Type of Projectile HE – 152 mm HE Mk V
Alpha Damage 2 150
HE penetration 25 mm
Explosion Size 0.54
Chance to Cause Fire 9 %
Projectile Speed 884 m/s
Air Drag 0.362
Projectile Mass 50.8 kg
6 x 2 113 mm/45 QF Mk.I/III on an RP10 Mark II BD mount
Maximum Firing Range 5.600 km
Reloading Time 5.0 s
Sigma 1.0 sigma
Shells
Type of Projectile HE – 113 mm HE 5crh
Alpha Damage 1 700
HE penetration 19 mm
Explosion Size 0.38
Chance to Cause Fire 8 %
Projectile Speed 746 m/s
Air Drag 0.329
Projectile Mass 24.95 kg

Torpedo Armament

4 x 1 533 mm PR Mk II
533 mm Mk IX*
Reloading Time 95 s
Maximum Distance 8.000 km
Optimal firing angle at the front 80°
Optimal firing angle at the rear 80°
Damage 15 867
Flooding Chance 265%
Speed 61 knots
Surface Detectability 1.3 km

Anti-air Armament

6 x 2 113 mm/45 QF Mk.I/III on an RP10 Mark II BD mount
Sector range 0.1 km – 5.8 km
Hit chance 75 %
Sector’s damage 19
Sector’s damage frequency 0.29 s
Sector’s damage per second 67
Flak clouds number 3
Flak cloud damage 1 260
6 x 8 40 mm/39 Vickers QF Mk.VIII on a Mk.VI mount
4 x 4 40 mm/39 Vickers QF Mk.VIII on a Mk.VII mount
Sector range 0.1 km – 2.5 km
Hit chance 75 %
Sector’s damage 89
Sector’s damage frequency 0.29 s
Sector’s damage per second 312
8 x 1 20 mm Oerlikon Mk.I on a Mk.IIIA mount
8 x 1 20 mm Oerlikon Mk.I on a Mk.IIA mount
16 x 2 20 mm Oerlikon Mk.II on a Mk.V mount
Sector range 0.1 km – 2.0 km
Hit chance 70 %
Sector’s damage 95
Sector’s damage frequency 0.29 s
Sector’s damage per second 333

Consumables

Slot 1
Slot 2
Slot 3
Slot 4
Damage Control Party
consumable_PCY009_CrashCrewPremiumWork time: 15 s
Cooldown: 80 s
Repair Party
Number of charges: 4
Work time: 28 s
Cooldown: 80 s
HP regeneration speed: +0.5%/s
Casemate damage regeneration: 50%
Citadel damage regeneration: 10%
Engine Boost
Number of charges: 3
Work time: 120 s
Cooldown: 120 s
Speed bonus: +8%
Defensive AA Fire

Number of charges: 3
Work time: 40 s
Cooldown: 80 s
Damage from continuous DPS: +50%
Damage from flak explosions: +300%

The Armor

External armor protection:

Front and rear armor protection of the middle section:

Main armor deck:

Citadel armor protection:

Turrets armor protection:

Hidden armor protection inside the bow and stern:

Personal Opinion

Overall, Rooke looks like a fairly solid ship. Although the range is a bit short, she has good firepower as she uses the same AP shells as Monarch a tier higher but with battlecruiser dispersion. She doesn’t get the thermonuclear HE shells though. When it comes to her torpedo armament, considering the position of the tubes and the armor profile of the ship, using them would be a death sentence as they require to show a flat broadside and present the vulnerable citadel.

The armor isn’t anything great but at least, she has a high top speed plus an Engine boost and her concealment is also excellent.

The only real downside of the ship is that her range is fairly short.

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