"Type 401" prototype developed by "Proportional Composites"
To continue to control the leading position in aviation, the United States has spared no effort in exploring new concept vehicles. US media have recently exposed two types of mystery verification machines, including the “Type 401†prototype developed by Northrop Grumman’s “Proportional Composites†company and the Lockheed Martin Martinson hypersonic verification machine. Chinese experts said that the two mysterious aircraft represent the two key development directions of U.S. aircraft in general: invisibility and hypersonic speed. If it is said that the invisible represents the current progress, hypersonic speed represents the future.
According to the United States "Defense News" reported on the 11th, "Proportional Composites" company announced on the same day a new experimental aircraft "401 type" prototype completed the first flight of relevant information and video. According to the company, two "Type 401" prototypes have been manufactured for "unpublished customers" to validate advanced fast and low-cost manufacturing technologies and provide technical partners with industry partners and the U.S. government. In terms of appearance, the “Type 401†has obvious invisible features. In addition, there are subsonic speeds, high lift-to-drag ratio wings, and back air intake designs that are not suitable for large overload maneuvers, much like a long-range aircraft verification structure. The type, especially its wings and tails, is very similar to the General Atom’s “Avenger†drone.
The Lockheed-Martin Ultrasonic Unmanned Verification Machine was exposed by the media as compared to the “401†prototype displayed by the Far East. According to the US “Popular Machinery†website, a SR-72 hypersonic reconnaissance aircraft’s scaler was discovered in a Lockheed Martin plant. Witnesses revealed that a specially shaped drone flew into US Air Force 42 at the headquarters of the company’s famous “Musk Factoryâ€. The drone landed on a certain day in late July, with two T-38 aircraft accompanying it. It has been speculated that this drone will most likely be a scaler verification machine developed for the SR-72 hypersonic unmanned reconnaissance aircraft. The latter will replace the active U-2 high-altitude reconnaissance aircraft and become the new “eye of the sky†in the United States. .
The report said that the sighting coincided with the announcement of Lockheed Martin’s progress on the research of hypersonic aircraft. The company revealed that a combined cycle engine using the principles of turbo and ramjet engines can achieve hypersonic flight. According to the plan, the SR-72 will be powered by two combined cycle engines. It plans to achieve the first in the end of the 20th century. Second flight.
Orlando Carvalho, executive vice president of Lockheed Martin, also publicly introduced the SR-72 plan this week: “Supersonics are similar to invisibility, and they are subversive technologies that will enable the air platform to reach its original SR speed. - Two to three times that of the -71 reconnaissance plane. Due to the principle of security, we can only say that the speed of the new model exceeds 5 times the speed of sound."
Chinese experts said that the design of the "Type 401" prototype did not significantly exceed the existing stealth design, and the hypersonic verification machine represents the future development. Its pneumatic layout, power system and control system are all unprecedented. . â–² (Zhang Yichi)
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