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F-15 Eagle vs X-31 EFM Vector

F-15 Eagle vs X-31 EFM Vector at a glance — top speed 2,655 vs 1,448 km/h, max takeoff weight 30,844 vs 7,303 kg, built 1,198 vs 2 units.

Specifications
F-15 Eagle X-31 EFM Vector
Origin country 🇺🇸 United States 🇩🇪 Germany🇺🇸 United States
Category Combat Aircraft Military Special Mission Aircraft
Manufacturer McDonnell Douglas Rockwell-MBB
First flight 27 July 1972 11 October 1990
Year introduced 1974 --
Number produced 1198 units 2 units
Average unit price $29 million --
Wing area 56.5 m² 21.0 m²
Wingspan 13.1 m 7.3 m
Height 5.6 m 4.4 m
Length 19.4 m 13.2 m
Maximum speed 2655 km/h 1448 km/h
Operational range 3,971 km -- km
Service ceiling 19,812 m 12,192 m
Max. takeoff weight 30,844 kg 7,303 kg
Empty weight 12,701 kg 5,175 kg
Total thrust 2 x 10,782 kgf 1 x 7,257 kgf
Performance Radar Chart
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Frequently Asked Questions

Which is faster, the F-15 Eagle or X-31 EFM Vector?
The F-15 Eagle is faster with a maximum speed of 2,655 km/h compared to the X-31 EFM Vector's 1,448 km/h, a difference of 1,207 km/h.
Which can fly higher, the F-15 Eagle or X-31 EFM Vector?
The F-15 Eagle has a higher service ceiling at 19,812 meters (65,000 ft) compared to the X-31 EFM Vector's 12,192 meters (40,000 ft).
Which is heavier, the F-15 Eagle or X-31 EFM Vector?
The F-15 Eagle has a higher maximum takeoff weight at 30,844 kg compared to the X-31 EFM Vector's 7,303 kg.
Which is larger, the F-15 Eagle or X-31 EFM Vector?
The F-15 Eagle is longer at 19.4 meters compared to the X-31 EFM Vector's 13.2 meters.
Which has been built in greater numbers, the F-15 Eagle or X-31 EFM Vector?
The F-15 Eagle has been produced in greater numbers with 1,198 units compared to 2 units of the X-31 EFM Vector.