The first aircraft to achieve supersonic flight was the US military’s rocket-powered research plane the Bell X-1, which reached speeds of nearly 1,000 mph in 1947. Since then, supersonic flight has become common in military aircraft. The advantages of hyperfast warplanes are that they can be difficult for enemy radars to detect, and even more difficult to catch or destroy.
To determine the warplanes that can fly faster than the speed of sound, 24/7 Wall St. reviewed data from the aviation resource Jetify. The speed of sound – also called Mach 1 – is about 717 mph, but the exact speed changes depending on the temperature and pressure of the surrounding air. All jets listed fly at Mach 2 or faster, which is double the speed of sound. Costs listed are the US dollar amount at the time of production. While the cheapest warplane on the list cost $10 million to produce, the most expensive cost $750 million. (Here is the weapon the US military spends the most money on.)
The fastest warplane ever created was an experimental rocket-powered aircraft called the X-15, which reached a top speed of 4,520 mph (Mach 6.7) in 1967. The jet was a combined creation of the United States Air Force and the National Aeronautics and Space Administration, but was never mass produced. Although NASA has designed many faster rockets and crafts meant for space travel, the X-15 holds the record as the fastest crewed fighter jet.
No other supersonic warplane has managed to come close to the speeds of the rocket-powered X-15. The second fastest fighter jet ever was the Lockheed SR-71 Blackbird, a reconnaissance plane that could exceed speeds of 2,500 mph (Mach 3.4). Although that might seem slow compared to the X-15, the SR-71 remains the fastest warplane that was ever produced and used in service.
Meanwhile, the fastest active fighter jet today is the Soviet-designed Mikoyan-Gurevich MiG-25 Foxbat, which tops out at 2,190 mph. Of the 16 warplanes on the list, five are Russian, while eight are American. Although a few of the planes are prototypes or experimental crafts that were never utilized in war, the rest have served as bombers, interceptors, and various other roles. Many are now retired. (This is the US Air Force’s oldest aircraft.)
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