Data Quality85%
01 / Overview
Humber-class monitor
Category
Country
Production
1914–1914
Quantity
3
Unit Price (current)
$5.0M↗ 3119% inflation · 1914→2025
Original Price
$155.0K (1914)
Operators
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
MONITORS · WORLD WAR I
—
PERFORMANCE/PRICE
—
UNIT COST (2025 USD)
$5.0M
Original: $155.0K (1914)
Inflation: +%3119
ⓘ Performance/Price and MASS score are computed across all units in the monitors category, regardless of era.
02 / Specs & Design
◎Identification7MOD.7
- Hull ClassificationMonitor
- Ship TypeMonitor
- Builder / ShipyardVickers
- Launched1913
- Commissioned1914
- Ships in Class3
- In ServiceNo
◈Displacement2MOD.2
- Standard Displacement1,260 t
- Full Load Displacement1,520 t
▣Dimensions3MOD.3
- Length (overall)81.3 m
- Beam14.9 m
- Draft1.7 m
◇Propulsion7MOD.7
- Arrangement (CODAG/COGAG…)2 shaft triple expansion engines, 2 Yarrow boilers
- Number of Engines2
- Shaft Power1,081 kW
- Shafts / Screws2
- Top Speed12 kn
- Cruise Speed8 kn
- Range3,056
◆Gun Armament4MOD.4
- Main GunBL 6 inch naval guns
- Main Gun Calibre152 mm
- Main Gun Count2
- Secondary Guns4.7-inch howitzers, 3-pounder guns
▤Missile Armament1MOD.1
⬢Fleet Status2MOD.2
- Completed3
- Retired3
▲Armour2MOD.2
- ArmourBelt: 3 in, Bulkheads: 1.5 in, Barbette: 3.5 in, Turret face: 4 in
- Belt Armour0 mm
03 / History
SERVICE LIFESPANRetired
- 1913Sale: Brazil (3 units)
- 1914Production started
- 1915Entered service
112
years in service
0
years in production
3
units produced
0
countries operating
ⓘ The producing country no longer actively operates it. 1 countries retired it.
04 / Operators
Operator Countries1country
Humber-class monitorSALES2records
| Year | Buyer | Quantity | Amount | Present Value (2025) |
|---|---|---|---|---|
| 1914 |  United Kingdom | 3 | $2.3 M | $72.8 M |
| 1913 |  Brazil | 3 | — | — |
ⓘ "Present Value" is an estimated amount adjusted for inflation.
05 / MASS Score
Not enough weapon data to rank this category.
MASS RANKINGSMASS ↗
ⓘ Rankings are within theMonitorscategory.
📖 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