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Dapper-class gunboat
Photo: Thomas Goldsworthy Dutton (1820-1891) · Wikimedia Commons · Public domain
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Dapper-classgunboat

Patrol Boats & Fast Attack Craft · United Kingdom · 1855
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Dapper-classgunboat

Dapper-class gunboat
Dapper-class gunboat Photo: Thomas Goldsworthy Dutton (1820-1891) · Wikimedia Commons · Public domain
* Absolute score — assessed within category · no era adjustment
Speed
12
Firepower
18
Agility
20
Sensors
5
Range
15
Sea-Keeping
22
Affordability
70
Survivability
25
Versatility
30
Technology
10
Origin United Kingdom
CategoryPatrol Boats & Fast Attack Craft
EraPre-WWI / Industrial Age
In service1855–1855
Operators1 countries
Quantity20
Data Quality85%
20
Patrol Boats & Fast Attack Craft MASS Rating
96/114
Pre-WWI / Industrial Age
362/387
All-Time
Patrol Boats & Fast Attack Craft · 10 axes scored
Speed
12
Firepower
18
Agility
20
Sensors
5
Range
15
Sea-Keeping
22
Affordability
70
Survivability
25
Versatility
30
Technology
10
ⓘ Regardless of era, the same scoring system applies to all units in the patrol boats & fast attack craft category.
01 / Overview
Dapper-class gunboat
Production
1855–1855
Quantity
20
Operators
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
PATROL BOATS & FAST ATTACK CRAFT · PRE-WWI / INDUSTRIAL AGE
96
PERFORMANCE/PRICE
78
UNIT COST (2025 USD)
—
20
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 ClassificationCrimean gunboat
  • Ship Typegunboat
  • Builder / ShipyardW & H Pitcher
  • Laid Down1854
  • Launched1855
  • Commissioned1855
  • Ships in Class20
  • In ServiceNo
◈Dimensions4MOD.4
  • Length (overall)32.31 m
  • Length (waterline)28.41 m
  • Beam6.71 m
  • Draft2.06 m
▣Complement1MOD.1
  • Total Complement36
◇Propulsion7MOD.7
  • Propulsion Type*2-cylinder horizontal single expansion steam engine *Single screw
  • Arrangement (CODAG/COGAG…)2-cylinder horizontal single expansion steam engine
  • Number of Engines1
  • Shaft Power270 kW
  • Shafts / Screws1
  • Top Speed7.5 kn
  • Nuclear-PoweredNo
◆Gun Armament4MOD.4
  • Main Gun68-pounder SBML gun
  • Main Gun Calibre203 mm
  • Main Gun Count1
  • Secondary Guns1 × 32-pounder SBML gun, 2 × 24-pounder howitzers
⬢Underwater Warfare4MOD.4
▲Aviation5MOD.5
◎Sensors & Combat Systems3MOD.3
◈Survivability5MOD.5
▣Fleet Status8MOD.8
  • Completed20
  • Active0
  • Under Construction0
  • Planned0
  • Cancelled0
  • Lost1
  • Retired19
  • Preserved0
◇Armour2MOD.2
  • Belt Armour0 mm
  • Deck Armour0 mm
03 / History
SERVICE LIFESPANRetired
  1. 1853First deployment: Crimean War
  2. 1855Production started
171
years in service
0
years in production
20
units produced
0
countries operating
ⓘ 1 countries retired it.
04 / Operators
Operator Countries1country
📖 TERMS ON THIS PAGE1terms
Cruise missiles designed to strike land targets from naval platforms, typically launched from ships or submarines.
These terms are listed automatically because they appear on this page.full encyclopedia →
📚 Sources
📖 ENCYCLOPEDIA Browse the Patrol Boats & Fast Attack Craft entry →