LATEST Ancient Prototypes of Proxy Warfare: The Economic and Logistical Burden of Roman and Persian Proxy Networks among Arab Tribes and Caucasian Powers
SEARCH
DB ONLINE
EN ▾
Iris-class protected cruiser
Photo: photographer not identified. Assumed British government. · Wikimedia Commons · Public domain
REC // INTEL FEED

Iris-classprotectedcruiser

Cruisers · United Kingdom · 1877
ADD TO COMPARE

Iris-classprotectedcruiser

Iris-class protected cruiser
Iris-class protected cruiser Photo: photographer not identified. Assumed British government. · Wikimedia Commons · Public domain
* Absolute score — assessed within category · no era adjustment
Firepower
30
Air Defence
5
Multi-Role Capability
20
Sensors
10
Survivability
40
Endurance
50
Command Capability
30
Aviation
0
Strategic Impact
25
Cost-Effectiveness
60
Origin United Kingdom
ManufacturerPembroke Dock
CategoryCruisers
EraPre-WWI / Industrial Age
In service1877–1879
Operators1 countries
Quantity2
Data Quality84%
MASS(Military Archive Scoring System)
24
Cruisers MASS Rating
115/150
Pre-WWI / Industrial Age
256/292
All-Time
Cruisers · 10 axes scored
Firepower
30
Air Defence
5
Multi-Role Capability
20
Sensors
10
Survivability
40
Endurance
50
Command Capability
30
Aviation
0
Strategic Impact
25
Cost-Effectiveness
60
ⓘ Regardless of era, the same scoring system applies to all units in the cruisers category.
01 / Overview
Iris-class protected cruiser
Category
Prime contractor
Production
1877–1879
Quantity
2
Operators
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
CRUISERS · PRE-WWI / INDUSTRIAL AGE
115
PERFORMANCE/PRICE
76
UNIT COST (2025 USD)
—
24
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 Classificationprotected cruiser
  • Ship TypeDespatch ship
  • Builder / ShipyardPembroke Dockyard, Wales
  • Laid Down1875
  • Launched1877
  • Commissioned1879
  • Ships in Class2
  • In ServiceYes
◈Displacement3MOD.3
  • Light Displacement3,730 t
  • Standard Displacement3,730 t
  • Full Load Displacement3,789.68 t
▣Dimensions3MOD.3
  • Length (overall)96.012 m
  • Beam14 m
  • Draft6.096 m
◇Complement2MOD.2
  • Total Complement275
  • Air Wing Personnel0
◆Propulsion9MOD.9
  • PropulsionSteam Turbine
  • Arrangement (CODAG/COGAG…)2 × compound-expansion steam engines
  • Number of Engines2
  • Shaft Power4,474 kW
  • Shafts / Screws2
  • Top Speed17 kn
  • Cruise Speed10 kn
  • Range4,950
  • Nuclear-PoweredNo
▤Gun Armament3MOD.3
  • Main Gun64 pounder rifled muzzle-loading guns
  • Main Gun Calibre160 mm
  • Main Gun Count10
▲Underwater Warfare4MOD.4
◎Aviation5MOD.5
◈Sensors & Combat Systems3MOD.3
▣Survivability5MOD.5
◇Fleet Status8MOD.8
  • Completed2
  • Active0
  • Under Construction0
  • Planned2
  • Cancelled0
  • Lost0
  • Retired2
  • Preserved0
◆Armour3MOD.3
  • Armournone
  • Belt Armour0 mm
  • Deck Armour0 mm
03 / History
SERVICE LIFESPANRetired
  1. 1877Production started
  2. 1879Production ended
149
years in service
2
years in production
2
units produced
0
countries operating
ⓘ 1 countries retired it.
04 / Operators
Operator Countries1country
📖 TERMS ON THIS PAGE2terms
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 →