Data Quality87%
MASS(Military Archive Scoring System)
ⓘ Regardless of era, the same scoring system applies to all units in the amphibious assault ships (lha/lhd) category.
01 / Overview
LDM 100-class medium landing craft
Country
Prime contractor
Production
1945–1964
Quantity
558
Operators
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
AMPHIBIOUS ASSAULT SHIPS (LHA/LHD) · COLD WAR
6
PERFORMANCE/PRICE
78
UNIT COST (2025 USD)
—
ⓘ Performance/Price and MASS score are computed across all units in the amphibious assault ships (lha/lhd) category, regardless of era.
02 / Specs & Design
◎Identification7MOD.7
- Hull ClassificationLSM-1-class Landing Ship Medium
- Ship TypeLanding Ship Medium (Transport)
- Laid Down1944
- Launched1944
- Commissioned1944
- Ships in Class558
- In ServiceNo
◈Displacement2MOD.2
- Light Displacement530 t
- Full Load Displacement900 t
▣Dimensions3MOD.3
- Length (overall)62 m
- Beam10.36 m
- Draft2.29 m
◇Complement3MOD.3
- Total Complement58
- Officers4
- Air Wing Personnel0
◆Propulsion9MOD.9
- PropulsionDiesel
- Arrangement (CODAG/COGAG…)direct drive diesel
- Number of Engines2
- Shaft Power2,088 kW
- Shafts / Screws2
- Top Speed24.6 kn
- Cruise Speed7 kn
- Range9,260
- Nuclear-PoweredNo
▤Gun Armament3MOD.3
- Main GunUp to 2 × 40 mm Bofors AA guns; 4-6 × 20 mm Oerlikon AA guns
- Main Gun Count2
- Secondary Guns4-6 × 20 mm Oerlikon AA guns
⬢Missile Armament3MOD.3
▲Underwater Warfare4MOD.4
- Torpedo Tubes0
- ASW CapabilityNo
- Hull-Mounted SonarNo
- Towed Array SonarNo
◎Aviation5MOD.5
- Embarked Helicopters0
- HangarNo
- Flight DeckNo
- Fixed-Wing Aircraft0
- UAV CapabilityNo
◈Sensors & Combat Systems3MOD.3
▣Survivability5MOD.5
- CBRN CitadelNo
- DegaussingNo
- Hull Materialsteel
- Stealth ShapingNo
- Automated Damage ControlNo
◇Fleet Status6MOD.6
- Completed558
- Active0
- Under Construction0
- Planned558
- Cancelled0
- Lost4
03 / History
SERVICE LIFESPANStill in Service
- 1945Production started
- 1961First deployment: Portuguese Colonial War
- 1964Production ended
81
years in service
19
years in production
558
units produced
2
countries operating
ⓘ The producing country still actively operates it. 1 countries retired it.
05 / MASS Score
AMPHIBIOUS ASSAULT SHIPS (LHA/LHD) RANKING Amphibious Assault Ships (LHA/LHD) · Cold War
MASS RANKINGSMASS ↗
8AMPHIBIOUS ASSAULT SHIPS (LHA/LHD)6COLD WAR · AMPHIBIOUS ASSAULT SHIPS (LHA/LHD)15PORTUGAL · ALL WEAPONS4PERFORMANCE/PRICE · AMPHIBIOUS ASSAULT SHIPS (LHA/LHD)
ⓘ Rankings are within theAmphibious Assault Ships (LHA/LHD)category.
📖 TERMS ON THIS PAGE1terms
Type of internal combustion engine fuel, refined from crude oil.
These terms are listed automatically because they appear on this page.full encyclopedia →
📚 Sources