During the Cold War, this plane could fly high and faster than any other aircraft. At 55 years after it first takes off, that record has not been shoved in: 00/6: 57 Namlockheed SR-71, is designed secretly in the late 1950s, which can be done Near the edge of space and "defeat" the missile. So far, the SR-71 still holds the record of the greatest height when horizontal, the same fastest speed for aircraft does not use missiles. It is a member of the spy aircraft type, built Incoming on enemy territory without being shot down or detected, at the time before satellite and unmanned aircraft became as popular as today. Black and heat sink design, making it yes Nickname is Blackbird
. Combined with the glossy lines of long aircraft, creating a special appearance, unlike anything that ever appeared before. A design does not lose his brilliant looks over time. A SR-71 "Blackbird" in the 1997 training task (Photo: NASA / Hulton Archive) "It looks like something comes from the future, Although designed in the 1950s, Peter Merlin, an aviation historian said
"With the way the fuselage bends along with curved and twisted wings, it looks more 'organic' than A mechanical object. Most of the aircraft will look like someone who has built them, and this plane is almost grown up. "The secret program of CIA in May 1960, one machine America's U-2 spying flight was shot down on the Soviet Union while taking a picture from the air. Initially, the US government said that this was just a weather studied aircraft that was lost, but the story broke when the Soviet government announced photos of arrested pilots and monitoring equipment The plane. The incident causes the diplomatic impact immediately in the Cold War, consolidating the needs of a new reconnaissance that could fly faster, the ceiling bay was higher, safe before air firepower. Merlin said: "Cia wants a plane to overcome the ceiling of 27.4 km, extremely high speed and invisible to the radar". The task of designing such an ambitious machine belongs to Clarence "Kelly" Johnson, one of the greatest aircraft designers in the world, along with his secret engineer in Lockheed, called Skunk Works. "Everything has to invent. I mean everything," Johnson flashed
He died in 1990, the same year that the Blackbirds was retired for the first time. The first sample in the Blackbird line was called A-12, making the first flight on April 30, 1962. Total, 13 A-12 has been shipped according to the special and secret approach to the CIA. "Leather" Titan is designed to fly faster than 3220 km / h, friction with the atmosphere around will Make the aircraft body so much that can melt the regular aircraft frame. Therefore, it is made of titanium, metal type can withstand high temperature, lighter than steel. However, the use of Titan causes other problems. First, make a complete titanium tool set, because normal steel devices will break the crispy titanium when contact. Second, to find metal supplies is not easy. "The Soviet Union at the time was the world's largest titanium provider. The US government had to pay a lot of purchase, even the use of casing companies," Merlin said. Absolutely no paint, revealed silver titanium skin. They were painted in black for the first time in 1964, after realizing that black paint helps to absorb and heat effectively, lower the temperature of the entire airframe. And so, "Blackbird" is really born. Designed, another name of the Facility-12 is quickly developed into a design variant like an interceptor - a type of fighter instead of duty Reconnaissance. In fact, this will ask for additional missiles and a second cockpit, so that a crew member operates the necessary radar devices. This new aircraft looks exactly the same as the A-12 except the nose, called YF-12.In when A-12 is still kept secret, the existence of YF-12 has been revealed by President Lyndon Johnson. In 1964, three of them were built and operated by the US Air Force. A third variant has been produced during this period, called M-21, has a pillar on the back to attach and launch unmanned aircraft. The two were built, but the program was paused in 1966 after a unmanned aircraft collided with its mother ship, causing one of the pilots to kill. The final version of A-12, With a double cockpit and greater fuel capacity, called SR-71, serving "strategic reconnaissance" and flying for the first time on December 22, 1964. This version will perform intelligence tasks for the US Air Force for over 30 years, with a total of 32 units built, lifting the final of the Blackbird family to 50. The dual drive of Lockheed SR- 71t . Dịch vụ:
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