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LDM 400-class medium landing craft
Photo: Unknown author · Wikimedia Commons · Public domain
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LDM400-classmediumlandingcraft

Amphibious Assault Ships (LHA/LHD) · Portugal · 1964
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LDM400-classmediumlandingcraft

LDM 400-class medium landing craft
LDM 400-class medium landing craft Photo: Unknown author · Wikimedia Commons · Public domain
* Absolute score — assessed within category · no era adjustment
Aviation Capacity
30
Troop / Vehicle Capacity
50
Well Deck Capability
45
Command Facilities
40
Self-Defence
35
Endurance
55
Versatility
50
Survivability
40
Technology
30
Cost-Effectiveness
70
Origin Portugal
CategoryAmphibious Assault Ships (LHA/LHD)
EraCold War
In service1964
Operators3 countries
Data Quality86%
43
Amphibious Assault Ships (LHA/LHD) MASS Rating
5/6
Cold War
7/14
All-Time
Amphibious Assault Ships (LHA/LHD) · 10 axes scored
Aviation Capacity
30
Troop / Vehicle Capacity
50
Well Deck Capability
45
Command Facilities
40
Self-Defence
35
Endurance
55
Versatility
50
Survivability
40
Technology
30
Cost-Effectiveness
70
ⓘ Regardless of era, the same scoring system applies to all units in the amphibious assault ships (lha/lhd) category.
01 / Overview
LDM 400-class medium landing craft
Country
Production
1964–
Operators
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
AMPHIBIOUS ASSAULT SHIPS (LHA/LHD) · COLD WAR
5
PERFORMANCE/PRICE
68
UNIT COST (2025 USD)
—
43
amphibious assault ships (lha/lhd) category
ⓘ Performance/Price and MASS score are computed across all units in the amphibious assault ships (lha/lhd) category, regardless of era.
02 / Specs & Design
◎Identification1MOD.1
  • In ServiceYes
◈Dimensions1MOD.1
  • Length (overall)57.5 m
▣Propulsion3MOD.3
  • PropulsionDiesel
  • Top Speed22 kn
  • Range5,650
03 / History
SERVICE LIFESPANStill in Service
  1. 1961First deployment: Portuguese Colonial War
  2. 1964Production started
  3. 1966Entered service
62
years in service
3
countries operating
ⓘ The producing country still actively operates it.
04 / Operators
Operator Countries3country
📖 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
📖 ENCYCLOPEDIA Browse the Amphibious Assault Ships (LHA/LHD) entry →