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KF-21 Boramae vs Su-34 Fullback

KF-21 Boramae vs Su-34 Fullback at a glance — top speed 2,200 vs 1,900 km/h, range 2,900 vs 4,500 km, max takeoff weight 25,401 vs 45,000 kg.

KAI KF-21 Boramae combat aircraft side profile drawing
🇰🇷 KF-21 Boramae
Sukhoi Su-34 Fullback combat aircraft side profile drawing
🇷🇺 Su-34 Fullback
Specifications
KF-21 Boramae Su-34 Fullback
Origin country 🇰🇷 South Korea 🇷🇺 Russia
Category Combat Aircraft Combat Aircraft
Manufacturer KAI Sukhoi
First flight 19 July 2022 13 April 1990
Year introduced 2026 2014
Number produced N/A 155 units
Average unit price $87.5 million $36 million
Wing area 46.0 m² 52.0 m²
Wingspan 11.2 m 14.7 m
Height 4.8 m 6.4 m
Length 16.8 m 23.3 m
Maximum speed 2200 km/h 1900 km/h
Operational range 2,900 km 4,500 km
Service ceiling 16,764 m 15,000 m
Max. takeoff weight 25,401 kg 45,000 kg
Empty weight 11,793 kg 20,000 kg
Total thrust 2 x 9,983 kgf 2 x 13,460 kgf
Performance Radar Chart
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Frequently Asked Questions

Which is faster, the KF-21 Boramae or Su-34 Fullback?
The KF-21 Boramae is faster with a maximum speed of 2,200 km/h compared to the Su-34 Fullback's 1,900 km/h, a difference of 300 km/h.
Which has longer range, the KF-21 Boramae or Su-34 Fullback?
The Su-34 Fullback 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-34 Fullback?
The KF-21 Boramae has a higher service ceiling at 16,764 meters (55,000 ft) compared to the Su-34 Fullback's 15,000 meters (49,212 ft).
Which is heavier, the KF-21 Boramae or Su-34 Fullback?
The Su-34 Fullback has a higher maximum takeoff weight at 45,000 kg compared to the KF-21 Boramae's 25,401 kg.
Which is larger, the KF-21 Boramae or Su-34 Fullback?
The Su-34 Fullback is longer at 23.3 meters compared to the KF-21 Boramae's 16.8 meters.
Which is more expensive, the KF-21 Boramae or Su-34 Fullback?
The KF-21 Boramae is more expensive at approximately $88 million per unit compared to the Su-34 Fullback at $36 million.
Which entered service first, the KF-21 Boramae or Su-34 Fullback?
The Su-34 Fullback entered service first in 2014, 12 years before the KF-21 Boramae which entered service in 2026.