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Cobra-class torpedo boat
Photo: Unknown photographer · Wikimedia Commons · Public domain
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Cobra-classtorpedoboat

Patrol Boats & Fast Attack Craft · United Kingdom · 1897
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Cobra-classtorpedoboat

Cobra-class torpedo boat
Cobra-class torpedo boat Photo: Unknown photographer · Wikimedia Commons · Public domain
* Absolute score — assessed within category · no era adjustment
Speed
30
Firepower
25
Agility
40
Sensors
10
Range
20
Sea-Keeping
15
Affordability
70
Survivability
10
Versatility
15
Technology
5
Origin United Kingdom
CategoryPatrol Boats & Fast Attack Craft
EraPre-WWI / Industrial Age
In service1897–1900
Operators1 countries
Quantity4
Data Quality84%
23
Patrol Boats & Fast Attack Craft MASS Rating
88/114
Pre-WWI / Industrial Age
349/387
All-Time
Patrol Boats & Fast Attack Craft · 10 axes scored
Speed
30
Firepower
25
Agility
40
Sensors
10
Range
20
Sea-Keeping
15
Affordability
70
Survivability
10
Versatility
15
Technology
5
ⓘ Regardless of era, the same scoring system applies to all units in the patrol boats & fast attack craft category.
01 / Overview
Cobra-class torpedo boat
Production
1897–1900
Quantity
4
Operators
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
PATROL BOATS & FAST ATTACK CRAFT · PRE-WWI / INDUSTRIAL AGE
88
PERFORMANCE/PRICE
94
UNIT COST (2025 USD)
—
23
patrol boats & fast attack craft category
ⓘ Performance/Price and MASS score are computed across all units in the patrol boats & fast attack craft category, regardless of era.
02 / Specs & Design
◎Identification8MOD.8
  • Hull Classificationtorpedo boat
  • Ship Typetorpedo boat
  • Builder / ShipyardYarrow Shipbuilders
  • Laid Down1897
  • Launched1898
  • Commissioned1899
  • Ships in Class4
  • In ServiceYes
◈Displacement1MOD.1
  • Full Load Displacement135 t
▣Dimensions4MOD.4
  • Length (overall)46.6 m
  • Length (waterline)45.9 m
  • Beam4.6 m
  • Draft2.3 m
◇Complement1MOD.1
  • Total Complement21
◆Propulsion6MOD.6
  • Propulsion Typesteam
  • Arrangement (CODAG/COGAG…)single triple-expansion steam engine
  • Number of Engines2
  • Shaft Power1,800 kW
  • Shafts / Screws1
  • Top Speed24 kn
▤Gun Armament3MOD.3
  • Main Gun47 mm L/33 Skoda
  • Main Gun Calibre47 mm
  • Main Gun Count2
⬢Underwater Warfare1MOD.1
  • Torpedo Tubes3
▲Fleet Status2MOD.2
  • Completed4
  • Retired4
03 / History
SERVICE LIFESPANRetired
  1. 1897Production started
  2. 1900Production ended
129
years in service
3
years in production
4
units produced
0
countries operating
ⓘ 1 countries retired it.
04 / Operators
Operator Countries1country
📚 Sources
📖 ENCYCLOPEDIA Browse the Patrol Boats & Fast Attack Craft entry →