China Opened the wreckage of U.S. military top secret high-speed reconnaissance plane disappeared 31 years ago

Beijing News: According to media reports, in 1960-1970, China's national air defense operations, the PLA has been continuously shot down U-2 high-altitude reconnaissance aircraft, and "Fire Bee" unmanned reconnaissance aircraft. But another more advanced and mysterious secret U.S. military hypersonic plane has entered China, the general historical data on rarely recorded. Recently, in Beijing, the China Aviation Museum in Xiaotangshan, formally unveiled a mysterious wreckage.






D-21 high altitude UAV first introduced the world's leading ramjet at speeds up to 3560 km / hour, equivalent to three times the speed of sound level, ceiling as high as 29,000 meters. In the early 1970s, including the United States, including their own, any one of the air defense weapons could not shoot down aircraft in theory.





D-21 unmanned aircraft, more than A-12/SR-71 "Blackbird" high-altitude high-speed UAV is more mysterious, and unlike the latter, D-21 combat attack only four times, withdrew from the stage of history. According to historical records, which all four attack against China Lop Nur nuclear test site.





Four actual attack of D-21, are B-52 bomber was equipped with machine tools, but failed four reconnaissance are the fourth is completely missing. U.S. military to think that the fourth frame D-21 unmanned aircraft shot down by the Chinese air force, but the recent history of China before the public the truth.





D-21 uses a large number of A-12/SR-71 "Blackbird" technology, able to overcome three times the speed of sound in flight "thermal barrier", and has started the development of stealth technology. It is reported that the D-21 was captured wreckage of the China National Aero-technology provides a high reference value.

D-21 unmanned aerial vehicles for about 12.8 meters, wingspan of 5.79 meters, 2.14 meters high, take-off weight of 5 tons, equipped with a RJ43-MA-20S4 ramjet engine, a maximum speed of Mach 3.35.

D-21 is the United States developed a technique based on A-12/SR-71 high altitude UAV, has long been a high degree of confidence in the state, the Cold War after the open on the details. The picture shows the China Aviation Museum for the first time publicly displayed D-21 unmanned aerial vehicle description sheet.

D-21 high altitude UAV first introduced the world's leading ramjet at speeds up to 3560 km / hour, equivalent to three times the speed of sound level, ceiling as high as 29,000 meters. In the early 1970s, including the United States, including their own, any one of the air defense weapons could not shoot down aircraft in theory. The picture shows the China Aviation Museum exhibits D-21 unmanned aircraft wreckage.

D-21 unmanned aircraft, more than A-12/SR-71 "Blackbird" high-altitude high-speed UAV is more mysterious, and unlike the latter, D-21 combat attack only four times, withdrew from the stage of history. According to historical records, the fourth attack against China's Lop Nor nuclear test site all.

D-21 from November 1969 to March 1971, a total of four actual attack, all the Lop Nor test site for China, but all four attack failed. The first three of which succeeded to the intelligence picture taken, but all recovered failure, while the fourth is missing after entering China's airspace. The wreckage of the China Aviation Museum, is missing the last one in 1971 D-21.

D-21 uses a large number of A-12/SR-71 "Blackbird" technology, able to overcome three times the speed of sound in flight "thermal barrier", and has started the development of stealth technology. It is reported that the D-21 was captured wreckage of the China National Aero-technology provides a high reference value.

The late 1960s, the D-21 unmanned aircraft in service, using the extremely expensive titanium alloy at current prices, the cost of all the manufacturing and use of up to 550 million dollars per aircraft (1970 prices), equivalent to an A-7 when Carrier Air .

D-21 unmanned aerial vehicles for about 12.8 meters, wingspan of 5.79 meters, 2.14 meters high, take-off weight of 5 tons, equipped with a RJ43-MA-20S4 ramjet engine, a maximum speed of Mach 3.35.

D-21 to A-12 first high-speed reconnaissance aircraft to carry machine tools, the latter named after modified M-21. However, M-21 attack cost is too high, D-21 was changed to B-52 for the machine tool. The picture shows the carrying D-21's B-52 bombers.

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