Emerald

12.4

Emerald

Cruiser | U.K. | Tier V

Tech Tree Position

stock

 top

General

Research price11000 exp

Purchase price1,250,000

Hit Points24,000

Main Battery

152 mm/50 BL Mk.XII on a CPXIV mount7 х 1 pcs.

Rate of Fire8 shots/min.

Reload Time7.5 sec.

Rotation Speed10 deg./sec.

180 Degree Turn Time18 sec.

Firing Range12.38 km.

Maximum Dispersion126 m.

Chance of Fire on Target Caused by HE Shell0 %

AP Shell152 mm AP 4crh SC

Maximum AP Shell Damage3,000

Initial AP Shell Velocity936 m./s.

AP Shell Weight45.36 kg.

Secondary Armament #1

102 mm/45 QF Mk.V on an HA Mk.III mount3 х 1 pcs.

Firing Range4.3 km.

Rate of Fire15 shots/min.

Reload Time4 sec.

HE Shell102 mm HE 35 lb

Maximum HE Shell Damage1,500

Initial HE Shell Velocity811 m./s.

Chance of Fire on Target Caused by HE Shell6 %

Torpedo Tubes

533 mm TR Mk IV4 х 3 pcs.

Rate of Fire0.85 shots/min.

Reload Time71 sec.

Rotation Speed25 deg./sec.

180 Degree Turn Time7.2 sec.

Torpedo533 mm Mk V

Maximum Damage11,967

Torpedo Speed59 knot

Torpedo Range6 km.

AA Defense

102 mm/45 QF Mk.V on an HA Mk.III mount3 х 1 pcs.

. . . Average Damage per Second8.4

. . . Firing Range3.51 km.

12.7 mm Mk.III6 х 4 pcs.

. . . Average Damage per Second12.6

. . . Firing Range1.2 km.

40 mm/39 Vickers QF Mk.II on a single mount2 х 1 pcs.

. . . Average Damage per Second11.2

. . . Firing Range2.01 km.

Maneuverability

Maximum Speed33 knot

Turning Circle Radius730 m.

Rudder Shift Time10.9 sec.

Concealment

Surface Detectability Range9.87 km.

Air Detectability Range5.4 km.

Battle Levels

12345678910

12.4

Emerald

Cruiser | U.K. | Tier V

Tech Tree Position

stock

 top

General

Research price11000 exp

Purchase price1,250,000

Hit Points27,100

Main Battery

152 mm/50 BL Mk.XII on a CPXIV mount7 х 1 pcs.

Rate of Fire8 shots/min.

Reload Time7.5 sec.

Rotation Speed10 deg./sec.

180 Degree Turn Time18 sec.

Firing Range13.62 km.

Maximum Dispersion126 m.

Chance of Fire on Target Caused by HE Shell0 %

AP Shell152 mm AP 4crh SC

Maximum AP Shell Damage3,000

Initial AP Shell Velocity936 m./s.

AP Shell Weight45.36 kg.

Secondary Armament #1

102 mm/45 QF Mk.V on an HA Mk.III mount3 х 1 pcs.

Firing Range4.3 km.

Rate of Fire15 shots/min.

Reload Time4 sec.

HE Shell102 mm HE 35 lb

Maximum HE Shell Damage1,500

Initial HE Shell Velocity811 m./s.

Chance of Fire on Target Caused by HE Shell6 %

Torpedo Tubes

533 mm QR Mk IV4 х 4 pcs.

Rate of Fire0.57 shots/min.

Reload Time106 sec.

Rotation Speed25 deg./sec.

180 Degree Turn Time7.2 sec.

Torpedo533 mm Mk VII

Maximum Damage15,733

Torpedo Speed59 knot

Torpedo Range7.02 km.

AA Defense

102 mm/45 QF Mk.V on an HA Mk.III mount3 х 1 pcs.

. . . Average Damage per Second8.4

. . . Firing Range3.51 km.

20 mm Oerlikon Mk.II on a Mk.V mount6 х 2 pcs.

. . . Average Damage per Second36.6

. . . Firing Range2.01 km.

20 mm Oerlikon Mk.I on a Mk.IIA mount6 х 1 pcs.

. . . Average Damage per Second21.6

. . . Firing Range2.01 km.

40 mm/39 Vickers QF Mk.VIII on a Mk.VII mount2 х 4 pcs.

. . . Average Damage per Second28

. . . Firing Range2.49 km.

Maneuverability

Maximum Speed33 knot

Turning Circle Radius730 m.

Rudder Shift Time7.8 sec.

Concealment

Surface Detectability Range9.87 km.

Air Detectability Range5.4 km.

Battle Levels

12345678910

V

1,250,000

Emerald — British Tier V cruiser.

The most advanced British light cruiser among those designed during World War I. The ship's powerful propulsion allowed for high speeds. Her larger displacement helped strengthen the cruiser's artillery and torpedo armament as well as equip her with aircraft-handling gear.

Modules

	Rate of Fire (shots/min)	180° Turn Time (sec)	Maximum Dispersion (m)	Maximum HE Shell Damage (HP)	Chance of Fire on Target Caused by HE Shell (%)	Maximum AP Shell Damage (HP)		Research price (exp)	Purchase price ()
152 mm/50 BL Mk.XII on a CPXIV mount	8	18	126			3,000		0	100,000

	Hit Points (HP)	Armor (mm)	Armor (mm)	Main Turrets (pcs.)	Secondary Gun Turrets (pcs.)	AA Mounts (pcs.)	Torpedo Tubes (pcs.)	Hangar Capacity (pcs.)		Research price (exp)	Purchase price ()
Emerald (A)	24,000	10	76	7	3	6/2/3	4			0	140,000
Emerald (B)	27,100	10	76	7	3	6/2/3	4			6,100	340,000

	Rate of Fire (shots/min)	Torpedo Tubes Reload Time (sec)	180° Turn Time (sec)	Maximum Damage (HP)	Torpedo Speed (knot)	Torpedo Range (km)		Research price (exp)	Purchase price ()
533 mm Mk V	0.6	95	7.2	11,966	59	6		0	150,000
533 mm Mk VII	0.6	106	7.2	15,733	59	7		3,600	400,000

	IDS_SHIP_PARAM_SUO_INCREASE_DIST (%)	Maximum Firing Range (km)		Research price (exp)	Purchase price ()
Mk V mod. 1		0		0	110,000
Mk V mod. 2		0		4,200	460,000

	Maximum Speed (knot)		Research price (exp)	Purchase price ()
Propulsion: 80,000 hp	33		0	85,000

Compatible Upgrades

Slot 1
Slot 2
Slot 3

Player Opinion

Performance

Warning. The data presented in the AA Defense sidebar section may be incorrect.
For a graphic summary of ships Tiers VIII thru XI see LittleWhiteMouse's "Actual AA DPS".

Emerald is the final evolution of the Royal Navy's cruiser designs based around single, centerline mounted 152mm guns. Though she has seven total turrets, only six can be brought to bear on a single target at once; the turrets just aft of the bridge are mounted on either side of her funnels and can only fire on one side of the ship.

Unfortunately, this represents a bit of a step back for the line, putting Emerald in much the same situation that Caledon was in at Tier III: she's badly outgunned by most opponents she will face. Every other Tier V cruiser save Furutaka can get more barrels on target than Emerald can, and Furutaka’s guns are significantly larger due to the Japanese cruiser line transitioning to heavy cruiser designs. The situation gets even more unpalatable when Emerald finds herself up-tiered into Tier VII games (at least Caledon can only see opponents one tier higher). As icing on the cake, the citadel is easily penetrated and positively huge: an Emerald captain should never forget that exposing the ship's sides to any enemy ship larger than a destroyer is almost invariably fatal.

Like Caledon and Danae, captains looking to get the most out of their Emerald will have to play incredibly smart and make maximum use of her torpedoes and consumables to see that she survives deep into games. Her stock torpedoes are equivalent to the upgraded ones on Danae, with the torpedo module upgrade boosting their damage, while upgrading the 6.0 km range to 7.0 km. Emerald is more sluggish on her rudder and has a larger turning circle than Danae, so new captains should take some time to get to know her before putting her in situations that require precise maneuvering.

Emerald is an average ship in a tough spot with unfavorable matchmaking tiers. Getting through — and past — her while working up the branch can be frustrating, but Leander makes the pain worthwhile.

Pros:

• Has the lowest detection range of any Tier V cruiser.
• Gains access to the Smoke Generator  consumable, while retaining access to the Repair Party  consumable.
• Has a large number of torpedoes with six per side, eight with the upgraded hull.
• The firing arcs for her torpedoes are large which allows her to use them while presenting a sharp angle.

Cons:

• Often has difficulty damaging battleships due to a lack of high explosive shells.
• Limited firing arcs on some of her main battery guns especially against targets aft of the ship.
• The citadel is quite large and sits high above the water making it easy to hit.
• Unlike her predecessors, has -2/+2 matchmaking and will frequently be matched up against Tier VII ships.
• Suffers immensely from being up-tiered due to short range torpedoes and frequently ineffective guns.

Research

Captains are encouraged to research the Gun Fire Control System module first to extend Emerald’s range before moving on to Hull (B) and the Torpedo module.

Optimal Configuration

Upgrades

The recommended upgrades for Emerald are as follows:

• Slot 1: Main Armaments Modification 1
• Slot 2: Engine Room Protection
• Slot 3: Aiming Systems Modification 1

Commander Skills

While a short main battery range has its downside, it also makes for a smaller maximum detection range. A possible destroyer hunter build would leave the range un-buffed and go for Radio Location and Concealment Expert with the purpose revealing yourself to as few enemies as possible when opening up on your prey.

Recommended Commander Skills
Cost (points)	Attack				Defense
1	Grease the Gears +15% main battery traverse speed. ★	Swift Fish +5% torpedo speed. ★	Consumables Specialist -10% cooldown time of Main Battery Reload Booster, Torpedo Reload Booster, Spotting Aircraft, Catapult Fighter, and Defensive AA Fire.	Gun Feeder -40% time to switch shell type.	Incoming Fire Alert Receive a warning of a salvo fired at your ship from more than 4.5km. ★★	Last Stand The ship remains able to move and maneuver - slowly - while the engine or steering gears are incapacitated. ★
2	Demolition Expert +1% chance of main and secondary HE shells causing a fire. +15% to the fragmentation damage area of HE ordnance fired at submarines.	Fill the Tubes -10% torpedo tubes reload time. ★	Consumables Enhancements +10% action time of Hydroacoustic Search, Surveillance Radar, Smoke Generator, & Engine Boost. ★★	Eye in the Sky Spotting Aircraft: • +2 charges • -50% cooldown time • -50% action time.	Priority Target The detection indicator will show the number of enemies targeting you with main battery. ★	Focus Fire Training In the priority AA sector:   +25% continuous damage.   +1 flak burst per salvo –10% reload time of Air strike armament. ★
3	Heavy HE and SAP Shells +10% HE and SAP shell damage. +15% ship detectability guns 149mm and up.	Enhanced Torpedo Explosive Charge +15% torpedo damage. ★	Adrenaline Rush -0.2% reload time of all armaments per 1% HP lost +0.2% AA continuous damage per 1% HP lost. ★★	Heavy AP Shells +5% damage for AP shells 190mm and larger.	Superintendent +1 charge to all consumables. ★★	Survivability Expert +450 HP per ship tier. ★
4	Top Grade Gunner -10% reload time of secondary batteries If enemy ship is spotted within detectability range, -8% reload time of main battery. ★★	Outnumbered If there are fewer allies than visible enemies within the ship's base main caliber firing range: +8% ship speed -10% main battery dispersion. ★★	Radio Location Shows the direction to the nearest enemy ship. The enemy is alerted that a bearing has been taken.. ★	Inertial Fuse for HE Shells +25% armor penetration of HE shells Base fire chance reduced by half.	Concealment Expert -10% detectability range of the ship. ★★★	AA Defense and ASW Expert +20% continuous AA damage. +20% flak damage. +15% damage from depth charges. ★
Key: ★★★ - Extremely Useful      ★★ - Frequently Useful      ★ - Occasionally Useful     No stars - Not Useful

Consumables

Emerald can equip the following consumables:

• Slot 1: Damage Control Party 
• Slot 2: Repair Party  – 3 charges
• Slot 3: Hydroacoustic Search  – 3 charges
• Slot 4: Smoke Generator  – 3 charges or Spotting Aircraft  – 4 charges or Catapult Fighter  – 3 charges

As a Royal Navy light cruiser, Emerald can be deadly to enemy destroyers, but also rather frail against them. This makes it advisable to equip Smoke Generator . Catapult Fighter  is not recommended due to the little protection it provides and Spotting Aircraft  is not recommended due to potential difficulty in reaching out to your targets. However, some players may find Spotting Aircraft  more useful than Smoke Generator  due to the rather abysmal range of the main battery. But Smoke Generator  can work very well in conjunction with Hydroacoustic Search , as smoke clouds are infamous torpedo magnets.

Signals

India Delta () and November Foxtrot () are highly recommended to optimize the ship’s Repair Party  consumable.

Recommended Signal Flags
Combat
Juliet Charlie -100% to the risk of magazine detonation.	Juliet Yankee Bissotwo -20% to flooding duration.	India Yankee -20% to fire duration.	Hotel Yankee -20% to damage received when ramming the enemy. +50% to damage dealt when ramming the enemy.	Victor Lima +1% chance for HE bombs and shells with a caliber above 160mm causing a fire. +0.5% chance for bombs and smaller shells causing a fire. +4% chance of torpedoes causing flooding.	India X-Ray +1% chance for HE bombs and shells with a caliber above 160mm causing a fire. +0.5% chance for bombs and smaller shells causing a fire. +5% to the risk of your ship's magazine detonating.
Juliet Whiskey Unaone +15% chance of causing flooding. +5% to the risk of your ship's magazine detonating.	Mike Yankee Soxisix +5% to secondary battery maximum firing range. -5% to maximum dispersion of secondary battery shells. -5% to secondary battery loading time.	November Echo Setteseven +5% continuous AA damage at all ranges. +5% damage from flak bursts.	Sierra Mike +5% to the ship's maximum speed.	November Foxtrot -5% reload time on all consumables.	India Delta +20% to the amount of HP recovered when Repair Party  is used.
X-Ray Papa Unaone +15% action time of a Smoke Generator .	Sierra Bravo +10% action time of Hydroacoustic Search  -10% reload time of Defensive AA Fire .

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

Gallery

• 

  Emerald analyzes the tactical situation.

• 

  Fish in the water.

• 

  Emerald takes a big hit from an enemy battleship. Meanwhile, Emerald's torpedoes are about to return the favor.

• 

  Armor piercing shells from the Emerald impact the superstructure of an ARP Hieiclass battleship.

Historical Info

HMS Emerald, 1936

Construction

Armstrong Whitworth;

Newcastle upon Tyne, England, United Kingdom

Laid down: 23 September 1918

Launched: 19 May 1920

Commissioned: 15 January 1926

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Specifications

7,550 tons displacement, standard

9,450 tons displacement, full load

173.7m length

16.61m beam

4.95m draft

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Machinery

8 Yarrow boilers

4 Brown-Curtis turbines

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Performance

33 knots at 80,000 shaft horsepower

8,000nm at 15 knots

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Armor

Main belt: 76.2mm over machinery, 57.15mm mid,

Belt Ends: 50.8mm -38mm

Decks: 25.4mm

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Armament

Main

Seven (7x1) 152mm BL Mk.XII guns

Anti-Aircraft

Three (3x1) 102mm QF Mk.V guns

Two (2x1) 40mm QF Mk.VIII guns

Torpedoes

Sixteen (4x4) 533mm torpedo tubes

Aircraft

One Catapult

One Hawker Osprey Seaplane

HMS Emerald at anchor near Portsmouth during World War II.

History

Design

The "E" class cruisers were designed and ordered in response to German cruisers believed to be under construction during World War I, and those that did see service in raiding convoys like the Brummer class. These new cruisers were designed as enlarged versions of the preceding "D" (Danae) class cruisers, and speed was prioritized above all else. Therefore, greater dimensions of over 7,500 tons were required to house the more powerful propulsion system, capable of maintaining a 33 knot top speed, 4 knots faster than the previous D class. On the other hand, despite the larger size and greater displacement, the E class retained the same protective scheme used for older cruisers, and only one extra 6-inch (152mm) gun was added over the D class, bringing the armament of Emerald up to seven 152mm guns. Five were mounted on the centerline of the ship and two guns mounted on the sides amidship.

Both Emerald and Enterprise were upgraded and rebuilt extensively before and during World War II. In 1929, quadruple torpedo tubes were fitted, giving them a comparatively massive advantage in torpedo armament over the previous classes of cruisers. Aircraft catapults were fitted on both ships in the mid-1930s, being placed amidships, requiring the after mast to be moved forward of the third funnel. This mast was latter converted into a tripod mast. Also in 1934, the funnels were made 5 feet taller. During world war 2, the two ships had their anti-aircraft armaments extensively augmented, using a variety of 12.7mm, 20mm and 40mm guns, although later during the war, this was at the expense of the aircraft catapult, and aft banks of torpedo tubes. Enterprise was fitted with an experimental twin 6-inch (152mm) gun turret, which replaced her forward super-firing single 6-inch mounts as compared to Emerald.

Three cruisers were ordered to be built under the E class design, however; only two were completed. Euphrates was cancelled following the end of the first World War. Construction on Emerald and Enterprise continued and the two ships were completed in 1926.

Service

Commissioned in 1926 after long delays due to fiscal restrictions and decommissioning priorities, Emerald joined the Eastern Fleet, serving there until 1933. Emerald was then inactive for just over a year, and once again joined the Eastern Fleet until 1937 when she was again paid off and placed on inactive status. Re-activated for World War II, Emerald briefly joined the Northern Patrol until she was transferred to Halifax, Nova Scotia in October 1939 for convoy escort duties. She served in this capacity until 1940, when she received a special mission to transport gold to Canada as payment for war materials. In October 1940, she took part in Operation Medium, escorting the battleship HMS Revenge to the French port of Cherbourg. In 1941, Emerald was transferred to the Indian Ocean for escort duties, participating in operations in Iraq and the Indian Ocean.

After the Japanese entry into the war, Emerald once again joined the Eastern Fleet, serving part of her tour as flagship of the Fast Group, continuing her service in the Indian Ocean. Emerald returned to the U.K. for refit in August 1942 and returned to the Eastern Fleet in early 1943 for escort duties until early 1944. Returning once again to the U.K., Emerald participated in the Normandy landings where she supported Gold Beach with naval gunfire until mid-July 1944. Placed in reserve in late 1944, Emerald became a designated target vessel and was sunk as a result in 1947. She was re-floated in 1948 and sold for scrapping in Scotland shortly after. Emerald earned two battle honors during her service.

Enterprise, like her sister, was delayed in completion until 1926, and upon completion was assigned to the East Indies through 1934. During this period, her distinguishing twin turret was fitted. She returned home for a major refit and overhaul, and rejoined the fleet in the East Indies in 1936, conducting transport duties to China station until 1938 when she was paid off. Re-activated at the beginning of World War II, Enterprise joined the Halifax (Nova Scotia) Force until 1940, when she returned home to participate in the Norway Campaign, providing naval gunfire support to troops ashore. Returning home again for quick refit, Enterprise joined Force H in the Mediterranean and took part in the action at Mers-el-Kébir against the French Fleet.

From 1940 through 1941, Enterprise was engaged in the South Atlantic and Indian Ocean hunting for German raiders, including Admiral Scheer. In 1942 she was assigned to convoy escort on the Australian routes before briefly joining the Eastern fleet. Enterprise then returned home late in 1942 for an extensive refit and overhaul, which lasted until late 1943. Near the end of the year, Enterprise joined the Home Fleet and participated in the continental blockade in the Bay of Biscay, where, with HMS Glasgow, she engaged in a short, sharp action with German torpedo boats and destroyers, sinking the T-22-class T-25 and T-26 and the Z-23-class Z-27. Enterprise next participated in the Normandy invasion, providing naval gunfire support off Utah Beach before being placed in reserve early in 1945. Enterprise participated in repatriation transport duties until early 1946, when she was paid off and sold for scrapping. Enterprise earned four battle honours during her service.

Historical Inaccuracies

• Emerald’ Hull (A) represents her early war (1939 to 1942) condition; however, this hull uses the triple torpedo tubes that had been replaced by quadruples long prior to the Second World War.
• The anti-aircraft armament for Hull (A) is historically accurate for Emerald between 1939 and 1942, except that the ship only had four quadruple 12.7mm (0.5-inch) machine gun mounts fitted, not the six she has in game.
• Emerald's Hull (B) has the anti-aircraft compliment of Emerald in her 1944 condition, however, the six (6) single 20mm Oerlikon guns were added after the aircraft catapult was removed, and the quadruple 40mm 'pompom' and twin 20mm Oerlikon mounts were added after the aft banks of torpedo tubes were removed. Both the catapult and torpedo tubes are still present on the in-game hull, however.
• The Mk.XXII 6-inch (152mm) guns on Emerald were outfitted with standard charge shells with a muzzle velocity of 853 mps (meters per second), however in game, the supercharges are used, with a velocity of 936 mps.
• Although Emerald uses the same 152mm Mk.XXII guns as Caledon and Danae, Emerald — like other regular Royal Navy light cruisers in-game — only gets access to AP shells. Historically, ships using the Mk.XXII gun were outfitted with both AP/CPBC (Common Pointed Ballistic Cap) as well as HE shells.

Historical Gallery

• 

  HMS Emerald at anchor.

• 

  Up close photo of HMS Emerald's superstructure.

• 

  HMS Emerald in 1931.

• 

  Crest of HMS Emerald.

• 

  Scheme for Emerald.

• 

  Compartment layout for Emerald.

• 

  Drawing of Emerald after 1943 refit.

• 

  Emerald at Portsmouth.

References

• HMS Emerald (D66) - Wikipedia
• Emerald-class cruiser - Wikipedia

Ship Change Log

See here for links to Update notes.

• Available to supertesters in the game starting from Update 0.5.11.
• Introduced into the game as a researchable ship in Update 0.5.13.
• Update 0.5.16:
  • Fixed a bug with different operating times for the base and premium Spotting Aircraft consumables.
• Update 0.6.3:
  • Experience earnings increased by 5%.
• Update 0.6.6:
  • The thickness of the hull plating was changed from 10 to 13 mm.
• Update 0.6.12:
  • Detectability when firing main guns in smoke changed to 5.4 km.
• Update 0.6.13:
  • Fire extinguishing time now 30 s instead of 60 s.
  • The Smoke Generator active time was increased from 7 to 15 s.
  • Improved display of thin elements.
• Update 0.6.15:
  • Added a bonus to the Lá Fhéile Pádraig 2017 permanent camouflage - a 10% discount to the post-battle service cost.
• Update 0.7.7:
  • The range of the MK VII torpedo was increased from 6 to 7 km.
  • detectability from ships decreased from 11.52 to 10.18 km.
  • Detectability after firing main guns in smoke decreased from 5.4 to 4.56 km.
• Update 0.7.10:
  • The range of the Hydroacoustic Search consumable was unified - 4 km for detecting ships, 3 km for detecting torpedoes.
• Update 0.8.0.1:
  • The characteristics of the base consumable "Fighter" for the cruiser Emerald were brought to the same value as the improved version of the consumable.
• Update 0.8.5:
  • Credits earnings increased by +5%.
• Update 0.8.6:
  • Citadel deck armor increased from 25 to 40 mm.
• Update 0.9.6:
  • The value of the in-game turning circle radius was changed to 730 m to correct prior discrepancy.
• Update 0.10.10:
  • Secondary battery maximum firing range reduced from 4.5 to 4.3 km.

Ships of U.K.

Cruisers