
ACombat aircraft
KAI KF-21 Boramae
Block 1 : Air superiority fighter Block 2 : Multirole combat aircraft Block 3 : Stealth multirole combat aircraft
Preparing your view.

ACombat aircraft
Block 1 : Air superiority fighter Block 2 : Multirole combat aircraft Block 3 : Stealth multirole combat aircraft

At a glance
Measured figures
single seat aircraft · Length
Single source16.9 m (55 ft 4 in)[source]
Su-57E · Length
Configuration
| Specification | KAI KF-21 Boramae | Sukhoi Su-57 |
|---|---|---|
| Type | Block 1 : Air superiority fighter Block 2 : Multirole combat aircraft Block 3 : Stealth multirole combat aircraft[source] | Stealth multirole fighter[source] |
| National origin | South Korea[source] | Russia[source] |
| Manufacturer | Korea Aerospace Industries[source] | United Aircraft Corporation[source] |
| Designer | Agency for Defense Development[source] |
20.1 m (65 ft 11 in)[source]
Empty; single seat aircraft · Empty weight
Single sourceGross; single seat aircraft · Gross weight
Single sourceMaximum take-off; single seat aircraft · Max takeoff weight
Single source11,800 kg (26,015 lb)[source]
17,200 kg (37,920 lb)[source]
25,600 kg (56,400 lb)[source]
Empty; Su-57E · Empty weight
Single sourceGross; Su-57E · at full load
Single sourceMaximum; single seat aircraft · Maximum speed
Single source2,200 km/h (1,400 mph, 1,200 kn)[source]
Maximum; Su-57E · at sea level
Single sourceMaximum; Su-57E · Mach 2.0 at high altitude Mach 1.1
Single sourceMach 2.0, 2,135 km/h (1,153 kn; 1,327 mph) at high altitude Mach 1.1, 1,350 km/h (729 kn; 839 mph) at sea level[source]
Ferry; single seat aircraft · Ferry range
Single source2,900 km (1,800 mi, 1,550 nmi)[source]
single seat aircraft · 2 × General Electric F414-GE-400K (manufactured under license by Hanwha Aerospace ) turbofan thrust each dry
Single sourcesingle seat aircraft · with afterburner
Single source2 × General Electric F414-GE-400K (manufactured under license by Hanwha Aerospace ) turbofan , 57.8 kN (13,000 lbf) thrust each dry, 97.9 kN (22,000 lbf) with afterburner[source]
Su-57E · 2 × Saturn AL-41F-1 afterburning turbofan thrust each dry
Single sourceSu-57E · in emergency power
Single sourcesingle seat aircraft · external
Single source7,700 kg (17,000 lb) external[source]
Su-57E · Hardpoints: 12 hardpoints (6 × internal, 6 × external) with a capacity of maximum payload
Single sourceHardpoints: 12 hardpoints (6 × internal, 6 × external) with a capacity of 7,500 kilograms (16,500 lb) maximum payload[source]
Su-57E · Service ceiling
Single source18,800 m (61,700 ft)[source]
Bars compare reported quantities only. A larger figure does not make a system better; configurations and test conditions differ.
Sukhoi[source]
| Status | In service[source] | In production[source] |
|---|
| Primary user | Republic of Korea Air Force[source] | — |
|---|
| Number built | KAI : 6 prototypes ROKAF : 1 (40 orders)[source] | 44+ as of 2026 (including 10 test aircraft)[source] |
|---|
| Manufactured | 2024–present[source] | 2019–present[source] |
|---|
| Introduction date | 22 September 2026[source] | 2020[source] |
|---|
| First flight | 19 July 2022[source] | 29 January 2010 ( 2010-01-29 )[source] |
|---|
| Fuel capacity | 6,000 kg (13,227 lb) internal[source] | 9,700 kg (21,385 lb) internal, 12,900 kg (28,440 lb) with 2× PTB-2000 2,000 L (528 US gal) drop tanks[source] |
|---|
| Guns | 1× 20 mm M61A2 Vulcan rotary autocannon , 480 rounds[source] | 1 × 30 mm Gryazev-Shipunov GSh-30-1 autocannon[source] |
|---|
| Hardpoints | 10 (6 under-wing hardpoints and 4 under-fuselage hardpoints)[source] | 12 hardpoints (6 × internal, 6 × external) with a capacity of 7,500 kilograms (16,500 lb) maximum payload[source] |
|---|
| g limits | +9.0[source] | +9.0[source] |
|---|
| Missiles | Air-to-air missiles: Meteor IRIS-T LRAAM (Long-Range Air-to-Air Missile, In development) SRAAM (Short-Range Air-to-Air Missile, in development) AIM-120 AMRAAM (Approved) AIM-9X Sidewinder (Approved) Air-to-surface missiles: KALCM Cheonryong (Block 2, in development) Anti-ship missiles: Korean Hypersonic anti-ship missile (In development)[source] | Air-to-air missiles : R-77 M R-74M2 R-37 (missile) Air-to-surface missiles : 4 × Kh-38 M 4 × Kh-69 S-71K Kovyor Anti-ship missiles : 2 × Kh-35 U 2 × Kh-31 Anti-radiation missiles : 4 × Kh-58 UShK[source] |
|---|
| Bombs | GBU-12 Paveway II (Block 2) GBU-31 Joint Direct Attack Munition (Block 2) GBU-38 Joint Direct Attack Munition (Block 2) GBU-39 Small Diameter Bomb (Block 2) GBU-54 Joint Direct Attack Munition (Block 2) GBU-56 Joint Direct Attack Munition (Block 2) KGGB (Block 2) Mark 82 bomb (Block 2) Mark 84 bomb (Block 2)[source] | KAB-250 guided bomb KAB-500 guided bomb "Drill" anti-tank 500 kg cluster bomb with active homing[source] |
|---|
| Built by | — | Komsomolsk-on-Amur Aircraft Plant[source] |
|---|
| Primary users | — | Russian Aerospace Forces Algerian Air Force[source] |
|---|
| Variant | — | Sukhoi/HAL FGFA (cancelled)[source] |
|---|
| Supercruise | — | Mach 1.3, 1,400 km/h (756 kn; 870 mph) supercruise at high altitude[source] |
|---|
| Wing loading | — | 371 kg/m 2 (76 lb/sq ft) normal takeoff weight[source] |
|---|
| Thrust/weight | — | 1.09 at normal takeoff weight (0.97 at loaded weight with full fuel)[source] |
|---|
Gross; Su-57E · normal takeoff weight
Single sourceMaximum take-off; Su-57E · Max takeoff weight
Single source18,500 kg (40,786 lb)[source]
26,700 kg (58,863 lb) normal takeoff weight, 29,800 kg (65,700 lb) at full load[source]
34,000 kg (74,957 lb)[source]
Su-57E · with afterburner
Single source2 × Saturn AL-41F-1 afterburning turbofan , 88.3 kN (19,900 lbf) thrust each dry, 142.2 kN (32,000 lbf) with afterburner, 147.1 kN (33,100 lbf) in emergency power[source]