North American XB-70 Valkyrie – 사진 및 비디오

Tthe 북미 항공 XB-70 발키리 미 공군 전략 항공 사령부를 위해 계획된 B-70 핵무장 심공 전략 폭격기의 프로토타입 버전이었습니다. 1950년대 후반 북미 항공에서 설계한 6개의 엔진을 장착한 Valkyrie는 70,000피트(21,000m)에서 비행하면서 마하 3+로 수천 마일을 순항할 수 있었습니다.

소스: 북미 XB-70 발키리 ― 위키피디아

The North American XB-70 Valkyrie was a prototype of a supersonic bomber aircraft that was designed and built by North American Aviation in the 1950s and 1960s. The XB-70 was intended to fly at Mach 3 (three times the speed of sound) and reach altitudes of over 70,000 feet (21,000 meters), where it would be immune to enemy interceptors and missiles. The XB-70 was also designed to use a phenomenon called compression lift, which increased its lift and reduced its drag by riding on its own shockwave.
The XB-70 was one of the most ambitious and advanced aircraft projects of its time, but it also faced many technical and political challenges. The development of the XB-70 was plagued by cost overruns, delays, design changes, and accidents. The emergence of intercontinental ballistic missiles (ICBMs) and anti-aircraft missiles also reduced the need for a high-speed bomber. As a result, the U.S. Air Force cancelled the XB-70 program in 1961, after only two prototypes were built.
The two XB-70 prototypes flew a total of 129 test flights between 1964 and 1969, demonstrating their impressive performance and capabilities. However, they also encountered several problems, such as engine failures, structural damage, and control issues. The most tragic incident occurred on June 8, 1966, when the second prototype collided with a smaller chase plane during a photo shoot and crashed, killing two of the four crew members. The first prototype survived until 1969, when it was retired and donated to the National Museum of the U.S. Air Force in Ohio.
The XB-70 Valkyrie remains one of the most iconic and influential aircraft in aviation history. It inspired many other designs, such as the B-1 Lancer, the Concorde, and the Tu-144. It also contributed to the advancement of aerospace technology and research, such as supersonic aerodynamics, materials science, propulsion systems, and flight control. The XB-70 Valkyrie was a remarkable achievement of engineering and innovation that pushed the boundaries of flight.