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Emerald-class light cruiser
Photo: Official photographer · Wikimedia Commons · Public domain
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Emerald-classlightcruiser

Cruisers · United Kingdom · 1926
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Emerald-classlightcruiser

Emerald-class light cruiser
Emerald-class light cruiser Photo: Official photographer · Wikimedia Commons · Public domain
* Absolute score — assessed within category · no era adjustment
Firepower
60
Air Defence
40
Multi-Role Capability
50
Sensors
30
Survivability
65
Endurance
70
Command Capability
55
Aviation
20
Strategic Impact
50
Cost-Effectiveness
70
Origin United Kingdom
ManufacturerJohn Brown & Company
CategoryCruisers
EraInterwar Period
In service1926–1926
Operators1 countries
Quantity2
Data Quality85%
MASS(Military Archive Scoring System)
50
Cruisers MASS Rating
42/65
Interwar Period
91/292
All-Time
Cruisers · 10 axes scored
Firepower
60
Air Defence
40
Multi-Role Capability
50
Sensors
30
Survivability
65
Endurance
70
Command Capability
55
Aviation
20
Strategic Impact
50
Cost-Effectiveness
70
ⓘ Regardless of era, the same scoring system applies to all units in the cruisers category.
01 / Overview
Emerald-class light cruiser
Category
Prime contractor
Production
1926–1926
Quantity
2
Operators
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
CRUISERS · INTERWAR PERIOD
42
PERFORMANCE/PRICE
78
UNIT COST (2025 USD)
—
50
cruisers category
ⓘ Performance/Price and MASS score are computed across all units in the cruisers category, regardless of era.
02 / Specs & Design
◎Identification8MOD.8
  • Hull Classificationlight cruiser
  • Ship Typelight cruiser
  • Builder / ShipyardArmstrong Whitworth; John Brown
  • Laid Down1918
  • Launched1920
  • Commissioned1926
  • Ships in Class2
  • In ServiceYes
◈Displacement2MOD.2
  • Standard Displacement7,580 t
  • Full Load Displacement7,701.28 t
▣Dimensions3MOD.3
  • Length (overall)173.736 m
  • Beam16.612 m
  • Draft5.029 m
◇Complement2MOD.2
  • Total Complement572
  • Air Wing Personnel0
◆Propulsion9MOD.9
  • PropulsionSteam Turbine
  • Arrangement (CODAG/COGAG…)4 shafts; geared steam turbines
  • Number of Engines8
  • Shaft Power59,656 kW
  • Shafts / Screws4
  • Top Speed33 kn
  • Cruise Speed15 kn
  • Range8,000
  • Nuclear-PoweredNo
▤Gun Armament5MOD.5
  • Main Gun7 × BL 6 inch Mk XII naval guns (single mounts)
  • Main Gun Calibre152 mm
  • Main Gun Count7
  • Secondary Guns3 × QF 4 inch Mk V naval guns; 2 × QF 2 pounder naval guns
  • CIWS6 × twin 20 mm Oerlikon; 2 × quadruple 2 pounder
▲Underwater Warfare4MOD.4
◎Aviation5MOD.5
◈Sensors & Combat Systems3MOD.3
◇Fleet Status8MOD.8
  • Completed2
  • Active0
  • Under Construction0
  • Planned3
  • Cancelled1
  • Lost0
  • Retired2
  • Preserved0
◆Armour3MOD.3
  • Armour* * Deck:
  • Belt Armour0 mm
  • Deck Armour25 mm
03 / History
SERVICE LIFESPANStill in Service
  1. 1926Production started
  2. 1939First deployment: World War II
100
years in service
0
years in production
2
units produced
1
countries operating
ⓘ The producing country still actively operates it.
04 / Operators
Operator Countries1country
📖 TERMS ON THIS PAGE3terms
Anti-Submarine Warfare. Capability to detect, track, and engage submarines.
Automated Damage Control is a shipboard system that detects, assesses, and mitigates combat damage on aircraft carriers using sensors and software to enhance response speed and reduce crew workload.
A mechanical device that converts steam pressure into rotational energy, used to drive shipboard generators or propulsion systems.
These terms are listed automatically because they appear on this page.full encyclopedia →
📚 Sources
📖 ENCYCLOPEDIA Browse the Cruisers entry →