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Flower-class corvette
Photo: Unknown. Credit National Defence · Wikimedia Commons · Public domain
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Flower-classcorvette

Corvettes · United Kingdom · 1941
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Flower-classcorvette

Flower-class corvette
Flower-class corvette Photo: Unknown. Credit National Defence · Wikimedia Commons · Public domain
* Absolute score — assessed within category · no era adjustment
Firepower
30
Speed & Agility
25
Sensors
20
Anti-Surface Capability
35
Affordability
85
Littoral Suitability
70
Survivability
25
Versatility
55
Technology
30
Endurance
65
Origin United Kingdom
ManufacturerHarland and Wolff, Yarrow Shipbuilders Limited, Marine Industries Limited, Canadian Vickers, Burrard Dry Dock, Fleming and Ferguson, Ferguson Marine, Hall, Russell & Company, Smiths Dock Company, Davie Shipbuilding, John Crown & Sons Ltd, Henry Robb, Morton Engineering and Dry Dock Company, A. & J. Inglis, Blyth Shipbuilding Company, Ailsa Shipbuilding Company, Cook, Welton & Gemmell, Victoria Machinery Depot, Western Dry Dock and Shipbuilding Company, Kingston Shipyards, Alexander Hall & Co., Collingwood Shipbuilding
CategoryCorvettes
EraWorld War II
In service1941–1945
Operators24 countries
Quantity294
Data Quality88%
MASS(Military Archive Scoring System)
41
Corvettes MASS Rating
6/9
World War II
147/253
All-Time
Corvettes · 10 axes scored
Firepower
30
Speed & Agility
25
Sensors
20
Anti-Surface Capability
35
Affordability
85
Littoral Suitability
70
Survivability
25
Versatility
55
Technology
30
Endurance
65
ⓘ Regardless of era, the same scoring system applies to all units in the corvettes category.
01 / Overview
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
CORVETTES · WORLD WAR II
6
PERFORMANCE/PRICE
94
UNIT COST (2025 USD)
—
41
corvettes category
ⓘ Performance/Price and MASS score are computed across all units in the corvettes category, regardless of era.
02 / Specs & Design
◎Identification8MOD.8
  • Hull Classificationcorvette
  • Ship Typecorvette
  • Builder / ShipyardSmiths Dock Company and others
  • Laid Down1939
  • Launched1940
  • Commissioned1940
  • Ships in Class294
  • In ServiceNo
◈Displacement3MOD.3
  • Light Displacement925 t
  • Standard Displacement925 t
  • Full Load Displacement1,300 t
▣Dimensions3MOD.3
  • Length (overall)62.5 m
  • Beam10.1 m
  • Draft3.5 m
◇Complement2MOD.2
  • Total Complement85
  • Air Wing Personnel0
◆Propulsion9MOD.9
  • PropulsionSteam Turbine
  • Arrangement (CODAG/COGAG…)single shaft with Scotch marine boilers and triple-expansion reciprocating steam engine
  • Number of Engines1
  • Shaft Power2,050 kW
  • Shafts / Screws1
  • Top Speed16 kn
  • Cruise Speed12 kn
  • Range3,500
  • Nuclear-PoweredNo
▤Gun Armament4MOD.4
  • Main Gun4-inch BL Mk.IX single gun
  • Main Gun Calibre102 mm
  • Main Gun Count1
  • Secondary Guns.50 Vickers machine guns and .303 Lewis guns
▲Underwater Warfare4MOD.4
◎Aviation5MOD.5
◈Sensors & Combat Systems4MOD.4
▣Survivability5MOD.5
◇Fleet Status6MOD.6
  • Completed225
  • Under Construction0
  • Planned294
  • Cancelled11
  • Lost36
  • Preserved1
◆Armour1MOD.1
  • Armournone
03 / History
SERVICE LIFESPANStill in Service
  1. 1939First deployment: World War II
  2. 1940Entered service
  3. 1941Production started
  4. 1945Production ended
85
years in service
4
years in production
294
units produced
23
countries operating
ⓘ The producing country still actively operates it. 1 countries retired it.
04 / Variants
▚ WEAPON FAMILY
Flower-class corvette 1941
// DERIVATIVES
05 / Operators
📖 TERMS ON THIS PAGE5terms
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 technique to reduce a ship's magnetic signature by neutralizing its internal magnetic field, minimizing vulnerability to magnetic mines or detection.
Sonar system installed on the hull of a ship, used for underwater detection and navigation by emitting and receiving sound waves.
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 Corvettes entry →