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X-31 EFM Vector vs YF-23 Black Widow II

Rockwell-MBB X-31 EFM Vector military special mission aircraft side profile drawing
🇩🇪🇺🇸 X-31 EFM Vector
Northrop YF-23 Black Widow II combat aircraft side profile drawing
🇺🇸 YF-23 Black Widow II
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Specifications
X-31 EFM Vector YF-23 Black Widow II
Origin country 🇩🇪 Germany🇺🇸 United States 🇺🇸 United States
Category Military Special Mission Aircraft Combat Aircraft
Manufacturer Rockwell-MBB Northrop
First flight 11 October 1990 27 August 1990
Year introduced -- --
Number produced 2 units 2 units
Average unit price -- $70 million
Wing area 21.0 m² 84.0 m²
Wingspan 7.3 m 13.3 m
Height 4.4 m 4.0 m
Length 13.2 m 20.6 m
Maximum speed 1448 km/h 2335 km/h
Operational range -- km 4,500 km
Service ceiling 12,192 m 19,812 m
Max. takeoff weight 7,303 kg 28,123 kg
Empty weight 5,175 kg 13,154 kg
Total thrust 1 x 4,808 kgf 2 x 13,608 kgf
Performance Radar Chart
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Frequently Asked Questions

Which is faster, the X-31 EFM Vector or YF-23 Black Widow II?
The YF-23 Black Widow II is faster with a maximum speed of 2,335 km/h compared to the X-31 EFM Vector's 1,448 km/h, a difference of 887 km/h.
Which has longer range, the X-31 EFM Vector or YF-23 Black Widow II?
The YF-23 Black Widow II has a longer range at 4,500 km compared to the X-31 EFM Vector's 0 km.
Which can fly higher, the X-31 EFM Vector or YF-23 Black Widow II?
The YF-23 Black Widow II 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 X-31 EFM Vector or YF-23 Black Widow II?
The YF-23 Black Widow II has a higher maximum takeoff weight at 28,123 kg compared to the X-31 EFM Vector's 7,303 kg.
Which is larger, the X-31 EFM Vector or YF-23 Black Widow II?
The YF-23 Black Widow II is longer at 20.6 meters compared to the X-31 EFM Vector's 13.2 meters.
Which has been built in greater numbers, the X-31 EFM Vector or YF-23 Black Widow II?
Both the X-31 EFM Vector and YF-23 Black Widow II have been produced in equal numbers with 2 units each.