Data Quality88%
MASS(Military Archive Scoring System)
ⓘ Regardless of era, the same scoring system applies to all units in the mine countermeasures vessels (mcm) category.
01 / Overview
Halcyon-class minesweeper
Country
Production
1933–1939
Quantity
21
Operators
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
MINE COUNTERMEASURES VESSELS (MCM) · INTERWAR PERIOD
3
PERFORMANCE/PRICE
87
UNIT COST (2025 USD)
—
ⓘ Performance/Price and MASS score are computed across all units in the mine countermeasures vessels (mcm) category, regardless of era.
02 / Specs & Design
◎Identification5MOD.5
- Hull Classificationfleet minesweeper
- Ship Typeminesweeper
- Ships in Class21
- Roleminesweeping and anti‑submarine escort
- In ServiceYes
◈Displacement & Dimensions5MOD.5
- Light Displacement828 t
- Full Load Displacement1,391 t
- Length74.7 m
- Beam10.2 m
- Draft2.74 m
▣Propulsion5MOD.5
- Propulsion Type2 × Admiralty 3-drum water-tube boilers, vertical compound reciprocating steam engines on 2 shafts, 1,770 ihp
- Shaft Power1,320 kW
- Top Speed16.5 kn
- Range7,200
- Complement (crew)80
◇Self-Defense3MOD.3
- Main Gun2 × QF 4 inch Mk.V (102 mm) guns
- CIWSfalse
- Self-Defense SAMfalse
◆Armour1MOD.1
- Armournone listed
03 / History
SERVICE LIFESPANStill in Service
- 1933Production started
- 1939First deployment: World War II
93
years in service
6
years in production
21
units produced
4
countries operating
ⓘ The producing country still actively operates it. 1 countries retired it.
04 / Operators
Operator Countries5country
05 / MASS Score
MINE COUNTERMEASURES VESSELS (MCM) RANKING Mine Countermeasures Vessels (MCM) · Interwar Period
MASS RANKINGSMASS ↗
103MINE COUNTERMEASURES VESSELS (MCM)3INTERWAR PERIOD · MINE COUNTERMEASURES VESSELS (MCM)768UNITED KINGDOM · ALL WEAPONS28PERFORMANCE/PRICE · MINE COUNTERMEASURES VESSELS (MCM)
ⓘ Rankings are within theMine Countermeasures Vessels (MCM)category.
📚 Sources