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MiG-31 Foxhound vs Su-47 "Berkut" Firkin

MiG-31 Foxhound vs Su-47 "Berkut" Firkin at a glance — top speed 3,000 vs 2,500 km/h, range 3,000 vs 3,300 km, max takeoff weight 46,200 vs 35,000 kg, built 519 vs 1 units.

Mikoyan MiG-31 Foxhound combat aircraft side profile drawing
🇷🇺 MiG-31 FoxhoundFull specs
Sukhoi Su-47 "Berkut" Firkin combat aircraft side profile drawing
🇷🇺 Su-47 "Berkut" FirkinFull specs
Specifications
MiG-31 Foxhound Su-47 "Berkut" Firkin
Origin country 🇷🇺 Ex-USSR 🇷🇺 Russia
Category Combat Aircraft Combat Aircraft
Manufacturer Mikoyan Sukhoi
First flight 16 September 1975 25 September 1997
Year introduced 1981 --
Number produced 519 units 1 units
Average unit price $55 million $75 million
Wing area 61.6 m² 61.9 m²
Wingspan 13.5 m 15.2 m
Height 6.2 m 6.3 m
Length 22.7 m 22.6 m
Maximum speed 3000 km/h 2500 km/h
Operational range 3,000 km 3,300 km
Service ceiling 20,600 m 18,000 m
Max. takeoff weight 46,200 kg 35,000 kg
Empty weight 21,830 kg 16,375 kg
Total thrust 2 x 15,500 kgf 2 x 15,602 kgf
Performance Radar Chart
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MiG-31 Foxhound side profile drawing MiG-31 Foxhound Specs, operators & history →
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Frequently Asked Questions

Which is faster, the MiG-31 Foxhound or Su-47 "Berkut" Firkin?
The MiG-31 Foxhound is faster with a maximum speed of 3,000 km/h compared to the Su-47 "Berkut" Firkin's 2,500 km/h, a difference of 500 km/h.
Which has longer range, the MiG-31 Foxhound or Su-47 "Berkut" Firkin?
The Su-47 "Berkut" Firkin has a longer range at 3,300 km compared to the MiG-31 Foxhound's 3,000 km.
Which can fly higher, the MiG-31 Foxhound or Su-47 "Berkut" Firkin?
The MiG-31 Foxhound has a higher service ceiling at 20,600 meters (67,585 ft) compared to the Su-47 "Berkut" Firkin's 18,000 meters (59,055 ft).
Which is heavier, the MiG-31 Foxhound or Su-47 "Berkut" Firkin?
The MiG-31 Foxhound has a higher maximum takeoff weight at 46,200 kg compared to the Su-47 "Berkut" Firkin's 35,000 kg.
Which is larger, the MiG-31 Foxhound or Su-47 "Berkut" Firkin?
The MiG-31 Foxhound is longer at 22.7 meters compared to the Su-47 "Berkut" Firkin's 22.6 meters.
Which is more expensive, the MiG-31 Foxhound or Su-47 "Berkut" Firkin?
The Su-47 "Berkut" Firkin is more expensive at approximately $75 million per unit compared to the MiG-31 Foxhound at $55 million.
Which has been built in greater numbers, the MiG-31 Foxhound or Su-47 "Berkut" Firkin?
The MiG-31 Foxhound has been produced in greater numbers with 519 units compared to 1 units of the Su-47 "Berkut" Firkin.