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

J-20 Mighty Dragon vs KF-21 Boramae

Chengdu J-20 Mighty Dragon combat aircraft side profile drawing
🇨🇳 J-20 Mighty Dragon
KAI KF-21 Boramae combat aircraft side profile drawing
🇰🇷 KF-21 Boramae
Change comparison vs
Specifications
J-20 Mighty Dragon KF-21 Boramae
Origin country 🇨🇳 China 🇰🇷 South Korea
Category Combat Aircraft Combat Aircraft
Manufacturer Chengdu KAI
First flight 11 January 2011 19 July 2022
Year introduced 2017 2026
Number produced 300 units N/A
Average unit price $110 million $87.5 million
Wing area 73.0 m² 46.0 m²
Wingspan 13.0 m 11.2 m
Height 4.7 m 4.8 m
Length 21.2 m 16.8 m
Maximum speed 2130 km/h 2200 km/h
Operational range 5,500 km 1,000 km
Service ceiling 20,000 m 16,764 m
Max. takeoff weight 37,000 kg 25,401 kg
Empty weight 17,000 kg 11,793 kg
Total thrust 2 x 14,484 kgf 2 x 6,123 kgf
Performance Radar Chart

Overview

The J-20 Mighty Dragon and the KF-21 Boramae are both Combat Aircraft, manufactured by Chengdu and KAI respectively.

Top speed is 2,130 km/h for the J-20 Mighty Dragon vs 2,200 km/h for the KF-21 Boramae. The J-20 Mighty Dragon has an operational range of 5,500 km vs 1,000 km for the KF-21 Boramae. The J-20 Mighty Dragon operates at altitudes up to 20,000 m compared to 16,764 m for the KF-21 Boramae.

Unit cost is $110M for the J-20 Mighty Dragon vs $87.5M for the KF-21 Boramae. The J-20 Mighty Dragon first flew 11 years before the KF-21 Boramae (2011 vs 2022).

Related Comparisons
J-20 Mighty Dragon vs F-22 Raptor J-20 Mighty Dragon vs F-35 Lightning II KF-21 Boramae vs F-35 Lightning II J-20 Mighty Dragon vs Su-57 Felon J-20 Mighty Dragon vs F/A-18 E/F Super Hornet J-20 Mighty Dragon vs J-10 Vigorous Dragon

Frequently Asked Questions

Which is faster, the J-20 Mighty Dragon or KF-21 Boramae?
The KF-21 Boramae is faster with a maximum speed of 2,200 km/h compared to the J-20 Mighty Dragon's 2,130 km/h, a difference of 70 km/h.
Which has longer range, the J-20 Mighty Dragon or KF-21 Boramae?
The J-20 Mighty Dragon has a longer range at 5,500 km compared to the KF-21 Boramae's 1,000 km.
Which can fly higher, the J-20 Mighty Dragon or KF-21 Boramae?
The J-20 Mighty Dragon 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 J-20 Mighty Dragon or KF-21 Boramae?
The J-20 Mighty Dragon has a higher maximum takeoff weight at 37,000 kg compared to the KF-21 Boramae's 25,401 kg.
Which is larger, the J-20 Mighty Dragon or KF-21 Boramae?
The J-20 Mighty Dragon is longer at 21.2 meters compared to the KF-21 Boramae's 16.8 meters.
Which is more expensive, the J-20 Mighty Dragon or KF-21 Boramae?
The J-20 Mighty Dragon is more expensive at approximately $110 million per unit compared to the KF-21 Boramae at $88 million.
Which entered service first, the J-20 Mighty Dragon or KF-21 Boramae?
The J-20 Mighty Dragon entered service first in 2017, 9 years before the KF-21 Boramae which entered service in 2026.