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K21: History, Measurement & Products

The K21 is a South Korean infantry fighting vehicle. A replacement for the K200-series, it was formerly designated as K300 or XK21 KNIFV (Korea Next-generation Infantry Fighting Vehicle). The initial production began in 2009, with the Republic of Korea Army planning to field approximately 466 units. It is designed to effectively defeat other IFVs as…

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K21 topic overview

The analysis highlights History, Measurement and Products as prominent areas in the source structure around K21.

Related topics
72
Source areas
5
Connected nodes
77
Extracted relationships
110
Concept neighborhoods
22
Bridge connections
77

What this topic covers Research coverage

Source areas are shown by the number of related topics found in each part of the analysis. Use smaller areas too: they can reveal specialized angles and content gaps.

Operators · 36 topics
Design · 22 topics
Variants · 8 topics
Overview · 4 topics
History · 2 topics

Smaller areas are not necessarily less important. They contain fewer connections in this analysis and can be useful for finding specialized angles or coverage gaps.

Key facts & relationships

High-confidence facts extracted from structured source data. Use them as anchors for further research.

.mw-parser-output .tooltip-dotted{border-bottom:1px dotted;cursor:help}Maximum speed
70 km/h (43 mph) (road) 40 km/h (25 mph) (cross-country) 7 km/h (4.3 mph; 3.8 kn) (water)
Armor
2519 aluminium alloy chassis. Layers consisting of S2 glass fiber reinforced Al2O3 ceramic armour All round protection against 14.5×114mm API projectiles as well as 20 mm FSP Fr…
Crew
3 crew + 9 passengers
Designed
1999–2008
Designer
Agency for Defense Development
Engine
Doosan- D2840LXE diesel 750 hp (840 hp for the PIP)

Explore all related topics Closing gaps

Browse the complete topic structure, not only the most central items. Less prominent entities and concepts can reveal missing angles, specialized context and useful research gaps. Each item opens a new analysis centered on that subject.

Overview

History

Design

Variants

Operators

Advanced semantic analysis

Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.

How K21 connects Entity context

The extracted context around K21 shows recurring relationship patterns in the source. For example, K21 → Belgian, Both, CMI Defence, CMI Defence CT-CV, Cockerill, Cockerill CT-CV, Cockerill Falarick, Cockerill XC-8, Doosan DST, ERA, Falarick, GLATGM, Gun-Launched Anti-Tank Guided Missile, In, It, K21 IFV, K21-105, Main, NATO, North Korea Another extracted example is K21 → APFSDS, Dynamics K40, German Puma, K21's FCS, Multi-mode Fused Ammunition, Nobong, OTO Melara DARDO CIWS, South Korean Navy, The, The K236 MMFA, The K40, This. Use these groups to spot repeated connection types before inspecting the individual relationships.

K21

Top relations

related to K21-105 Medium tank · 26
K21 → Belgian, Both, CMI Defence, CMI Defence CT-CV, Cockerill, Cockerill CT-CV, Cockerill Falarick, Cockerill XC-8, Doosan DST, ERA, Falarick, GLATGM, Gun-Launched Anti-Tank Guided Missile, In, It, K21 IFV, K21-105, Main, NATO, North Korea
related to Armaments · 12
K21 → APFSDS, Dynamics K40, German Puma, K21's FCS, Multi-mode Fused Ammunition, Nobong, OTO Melara DARDO CIWS, South Korean Navy, The, The K236 MMFA, The K40, This
related to Armour · 10
K21 → Al2O3, Although, AP, APDS, BMP-3, It, K21's, S2-glass, The, There
related to history · 9
K21 → Development, Doosan DST, K21s, NIFV, November, October, Production, ROK Army, Three
related to Construction · 8
K21 → American Bradley, However, IFVs, More, The, The K21 KNIFV's, The NIFV, US
related to External links · 8
K21 → Armored Vehicles, Armour, Battlefield, Hanwha DefenseK-21, Korea's Deadly Infantry Fighting, National Interest, Terror, Vehicle Is
related to Mobility · 8
K21 → Despite, Doosan D2840LXE V-10, In-arm Suspension Unit, ISU, K2 Black Panther, The, The K21, The K21 PIP
related to Troop deployment · 6
K21 → Battle Management System, BMS, CCD, The, The K21, With
.mw-parser-output .tooltip-dotted{border-bottom:1px dotted;cursor:help}Maximum speed · 1
K21 → 70 km/h (43 mph) (road) 40 km/h (25 mph) (cross-country) 7 km/h (4.3 mph; 3.8 kn) (water)
Armor · 1
K21 → 2519 aluminium alloy chassis. Layers consisting of S2 glass fiber reinforced Al2O3 ceramic armour All round protection against 14.5×114mm API projectiles as well as 20 mm FSP Fr…

Important terminology

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

vehicle mm doosan armour system also infantry turret gun fire approximately crew rounds mi designed fighting korea bmp-3 vehicles targets

K21 relationships Subject–Predicate–Object triples

TTTA extracted 110 structured relationships around K21. Examples in this analysis include K21 → .mw-parser-output .tooltip-dotted{border-bottom:1px dotted;cursor:help}Maximum speed → 70 km/h (43 mph) (road) 40 km/h (25 mph) (cross-country) 7 km/h (4.3 mph; 3.8 kn) (water) and K21 → Armor → 2519 aluminium alloy chassis. Layers consisting of S2 glass fiber reinforced Al2O3 ceramic armour All round protection against 14.5×114mm API projectiles as well as 20 mm FSP Fr…. The table shows each extracted connection, where it came from and its confidence.

SubjectPredicateObjectConfidenceSrc
K21.mw-parser-output .tooltip-dotted{border-bottom:1px dotted;cursor:help}Maximum speed70 km/h (43 mph) (road) 40 km/h (25 mph) (cross-country) 7 km/h (4.3 mph; 3.8 kn) (water)1.00infobox
K21Armor2519 aluminium alloy chassis. Layers consisting of S2 glass fiber reinforced Al2O3 ceramic armour All round protection against 14.5×114mm API projectiles as well as 20 mm FSP Fr…1.00infobox
K21Crew3 crew + 9 passengers1.00infobox
K21Designed1999–20081.00infobox
K21DesignerAgency for Defense Development1.00infobox
K21EngineDoosan- D2840LXE diesel 750 hp (840 hp for the PIP)1.00infobox
K21Height2.6 m (8.5 ft)1.00infobox
K21In service2009–present1.00infobox
K21Length6.9 m (23 ft)1.00infobox
K21Main armamentSNT Dynamics K40 40×365mmR autocannon (240 rounds) Two Raybolt ATGM launchers (planned)1.00infobox
K21ManufacturerHanwha Defense (originally Daewoo Heavy Industries, later renamed as Doosan DST, follow by Hanwha Defense Systems)1.00infobox
K21Mass25.6 t (25.2 long tons; 28.2 short tons)1.00infobox
K21No. built4661.00infobox
K21Operational range500 km (310 mi)1.00infobox
K21Place of originSouth Korea1.00infobox
K21Power/weight29.2 hp/tonne1.00infobox
K21Produced2009–present1.00infobox
K21Secondary armament7.62 mm M60 GPMG1.00infobox
K21SuspensionPassive in-arm suspension unit (ISU)1.00infobox
K21TypeInfantry fighting vehicle1.00infobox
K21Unit cost$3.2 million1.00infobox
K21Width3.4 m (11 ft)1.00infobox
K21is aSouth Korean infantry fighting vehicle0.90text

Related concept clusters Concept neighborhoods

The concept neighborhoods around K21 bring nearby vocabulary together. In this analysis, examples include Doosan, Vehicle and Aluminium. Use the clusters to find adjacent concepts and terminology that may deserve separate research.

  • K21
    • Doosan
    • Vehicle
    • Aluminium
    • Defense
    • Fighting
    • K21-105
    • South
    • Dst
    • Unit
    • Weight
    • Infantry
    • Turret
  • k21
    • Doosan
    • Vehicle
    • Aluminium
    • Defense
    • Fighting
    • K21-105
    • South
    • Dst
    • Unit
    • Weight
    • Infantry
    • Turret
  • infantry fighting vehicle
    • Fighting
    • Infantry
    • South
    • Armored
    • Defense
    • Korea
    • Vehicles
    • Medium
    • Vehicle
    • Armour
    • K21
    • Inside
  • republic of korea army
    • Aluminium
    • Defense
    • Development
    • K21-105
    • South
    • Design
    • Designed
    • Dst
    • Km
    • Medium
    • Million
    • Tank
  • south korea
    • Defense
    • Design
    • Armour
    • Vehicle
    • Aluminium
    • Armored
    • Bmp-3
    • Development
    • K21-105
    • Korea
    • South
    • Designed
  • hanwha defense
    • Doosan
    • Aluminium
    • Development
    • Fighting
    • K21-105
    • South
    • Dst
    • Medium
    • Tank
    • Unit
    • Infantry
    • K21
  • department of national defense
    • Doosan
    • Aluminium
    • Development
    • Fighting
    • K21-105
    • South
    • Dst
    • Medium
    • Tank
    • Unit
    • Infantry
    • K21
  • oshkosh defense
    • Doosan
    • Aluminium
    • Development
    • Fighting
    • K21-105
    • South
    • Dst
    • Medium
    • Tank
    • Unit
    • Infantry
    • K21

Connections between topic areas Semantic bridges

For K21, one of the stronger structural bridges in this analysis connects K21 with Operators. Bridges highlight paths between different parts of the map and can reveal research angles that are easy to miss in a flat list.

Min side: 3
K21 — Operators · splits 41 ⟂ 37
K21 — Design · splits 55 ⟂ 23
K21 — Variants · splits 69 ⟂ 9
K21 — Overview · splits 73 ⟂ 5
K21 — History · splits 75 ⟂ 3

Map overview Semantic statistics

K21

Nodes78
Edges77
Triples110
Avg. degree1.97
Density0.025641
Components1

Source & methodology

TTTA analyzes the structure around K21 to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as History, Measurement & Products, including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.

Source: Wikipedia — K21 · EN edition · Analysis: TopicsToTalkAbout

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