The world's fastest manned aircraft is__________?
Correct answer: A. North American X-15
- A. North American X-15
- B. A-12 lockheed
- C. F-106 Delta Dart
- D. SR-71 Blackbird
Explanation
The North American X-15 reached about Mach 6.7, making it the fastest manned, powered aircraft ever flown. The SR-71 and A-12 were faster operational aircraft, but neither matched the X-15's record speed.
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About Inventions and Discoveries
Inventions and Discoveries covers the people, dates, principles and practical uses behind developments such as the wheel, printing press, telephone, electricity, radio, computer, internet, vaccines and space technology. It distinguishes an invention, which creates a device or process, from a discovery, which identifies something already present in nature.
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