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MiG-31 Foxhound vs SR-71 Blackbird

MiG-31 Foxhound vs SR-71 Blackbird at a glance — top speed 3,000 vs 3,541 km/h, range 3,000 vs 5,230 km, max takeoff weight 46,200 vs 78,018 kg, built 519 vs 32 units.

Mikoyan MiG-31 Foxhound combat aircraft side profile drawing
🇷🇺 MiG-31 FoxhoundFull specs
Lockheed SR-71 Blackbird military special mission aircraft side profile drawing
🇺🇸 SR-71 BlackbirdFull specs
Specifications
MiG-31 Foxhound SR-71 Blackbird
Origin country 🇷🇺 Ex-USSR 🇺🇸 United States
Category Combat Aircraft Military Special Mission Aircraft
Manufacturer Mikoyan Lockheed
First flight 16 September 1975 22 December 1964
Year introduced 1981 1966
Number produced 519 units 32 units
Average unit price $55 million $185 million
Wing area 61.6 m² 167.0 m²
Wingspan 13.5 m 17.0 m
Height 6.2 m 5.7 m
Length 22.7 m 32.8 m
Maximum speed 3000 km/h 3541 km/h
Operational range 3,000 km 5,230 km
Service ceiling 20,600 m 25,908 m
Max. takeoff weight 46,200 kg 78,018 kg
Empty weight 21,830 kg 30,617 kg
Total thrust 2 x 15,500 kgf 2 x 15,422 kgf
Performance Radar Chart
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Frequently Asked Questions

Which is faster, the MiG-31 Foxhound or SR-71 Blackbird?
The SR-71 Blackbird is faster with a maximum speed of 3,541 km/h compared to the MiG-31 Foxhound's 3,000 km/h, a difference of 541 km/h.
Which has longer range, the MiG-31 Foxhound or SR-71 Blackbird?
The SR-71 Blackbird has a longer range at 5,230 km compared to the MiG-31 Foxhound's 3,000 km.
Which can fly higher, the MiG-31 Foxhound or SR-71 Blackbird?
The SR-71 Blackbird has a higher service ceiling at 25,908 meters (85,000 ft) compared to the MiG-31 Foxhound's 20,600 meters (67,585 ft).
Which is heavier, the MiG-31 Foxhound or SR-71 Blackbird?
The SR-71 Blackbird has a higher maximum takeoff weight at 78,018 kg compared to the MiG-31 Foxhound's 46,200 kg.
Which is larger, the MiG-31 Foxhound or SR-71 Blackbird?
The SR-71 Blackbird is longer at 32.8 meters compared to the MiG-31 Foxhound's 22.7 meters.
Which is more expensive, the MiG-31 Foxhound or SR-71 Blackbird?
The SR-71 Blackbird is more expensive at approximately $185 million per unit compared to the MiG-31 Foxhound at $55 million.
Which entered service first, the MiG-31 Foxhound or SR-71 Blackbird?
The SR-71 Blackbird entered service first in 1966, 15 years before the MiG-31 Foxhound which entered service in 1981.
Which has been built in greater numbers, the MiG-31 Foxhound or SR-71 Blackbird?
The MiG-31 Foxhound has been produced in greater numbers with 519 units compared to 32 units of the SR-71 Blackbird.