The North American X-15 was a rocket-powered aircraft operated by the United States Air Force and the National Aeronautics and Space Administration (NASA) as part of the X-plane series of experimental aircraft. The X-15 set speed and altitude records in the early 1960s, reaching the edge of outer space and returning with valuable data used in aircraft and spacecraft design. As of 2013, the X-15 holds the official world record for the highest speed ever reached by a manned aircraft. Its maximum speed was 4,520 miles per hour (7,274 km/h) (Mach 6.72).
हम कॉन्टेंट सुझाव, ट्रैफिक प्रबंधन के लिए और आपकी पसंद को ध्यान में रखकर आपको विज्ञापन दिखाने के लिए कुकीज़ का उपयोग करते हैं। इस वेबसाइट का प्रयोग करके, आप और के लिए सहमति देते हैं।