The aircraft with a speed of 7,274 km and a ceiling of 108,000 m (VIDEO)

The North American X-15 was a rocket-powered, manned, experimental aircraft that flew at a speed of 7,274 kilometers per hour in 1967, reaching the limits of space at an altitude of 108,000 m. A total of 199 flights were made by 12 different pilots.

Lockheed's "Black Bird", the aircraft of 3,540 km per hour (vid.)

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