GlobalMilitary.net Open-source military intelligence Updated daily
Head-to-head

KF-21 Boramae vs Su-57 Felon

KF-21 Boramae vs Su-57 Felon at a glance — top speed 2,200 vs 2,135 km/h, range 2,900 vs 4,500 km, max takeoff weight 25,401 vs 35,000 kg.

KAI KF-21 Boramae combat aircraft side profile drawing
🇰🇷 KF-21 Boramae
Sukhoi Su-57 Felon combat aircraft side profile drawing
🇷🇺 Su-57 Felon
Specifications
KF-21 Boramae Su-57 Felon
Origin country 🇰🇷 South Korea 🇷🇺 Russia
Category Combat Aircraft Combat Aircraft
Manufacturer KAI Sukhoi
First flight 19 July 2022 29 January 2010
Year introduced 2026 2020
Number produced N/A 32 units
Average unit price $87.5 million $42 million
Wing area 46.0 m² 78.8 m²
Wingspan 11.2 m 14.1 m
Height 4.8 m 4.6 m
Length 16.8 m 20.1 m
Maximum speed 2200 km/h 2135 km/h
Operational range 2,900 km 4,500 km
Service ceiling 16,764 m 20,000 m
Max. takeoff weight 25,401 kg 35,000 kg
Empty weight 11,793 kg 18,500 kg
Total thrust 2 x 9,983 kgf 2 x 14,500 kgf
Performance Radar Chart
Change comparison vs
Related Comparisons
Su-57 Felon vs F-22 Raptor Su-57 Felon vs F-35 Lightning II KF-21 Boramae vs F-35 Lightning II Su-57 Felon vs J-20 Mighty Dragon KF-21 Boramae vs J-16 Qianlong KF-21 Boramae vs J-20 Mighty Dragon

Frequently Asked Questions

Which is faster, the KF-21 Boramae or Su-57 Felon?
The KF-21 Boramae is faster with a maximum speed of 2,200 km/h compared to the Su-57 Felon's 2,135 km/h, a difference of 65 km/h.
Which has longer range, the KF-21 Boramae or Su-57 Felon?
The Su-57 Felon has a longer range at 4,500 km compared to the KF-21 Boramae's 2,900 km.
Which can fly higher, the KF-21 Boramae or Su-57 Felon?
The Su-57 Felon has a higher service ceiling at 20,000 meters (65,616 ft) compared to the KF-21 Boramae's 16,764 meters (55,000 ft).
Which is heavier, the KF-21 Boramae or Su-57 Felon?
The Su-57 Felon has a higher maximum takeoff weight at 35,000 kg compared to the KF-21 Boramae's 25,401 kg.
Which is larger, the KF-21 Boramae or Su-57 Felon?
The Su-57 Felon is longer at 20.1 meters compared to the KF-21 Boramae's 16.8 meters.
Which is more expensive, the KF-21 Boramae or Su-57 Felon?
The KF-21 Boramae is more expensive at approximately $88 million per unit compared to the Su-57 Felon at $42 million.
Which entered service first, the KF-21 Boramae or Su-57 Felon?
The Su-57 Felon entered service first in 2020, 6 years before the KF-21 Boramae which entered service in 2026.