The most exotic plane in NASA's history

AD-1 is an aircraft that can rotate its wings at an angle of 60 degrees in the air. The aircraft was built in the 1970s of the last century. The aerodynamic properties of the AD-1 make many people curious why NASA invested in such a project?

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The answer to this question is that wind tunnel research shows that the tilted wing design can save up to liệu of fuel at supersonic speeds thanks to aerodynamic applications.

AD-1 was born with a small model and put on test flight on December 21, 1979. After taking off like normal planes, the AD-1 starts to accelerate until a certain speed is reached, which will rotate until the optimum angle is reached. However, the weakness of this model is that the driver is very difficult to control when the wing at 45 degrees is also a part of the material durability of the material for AD-1 at that time. After that, scientists did not continue to implement this project. The last flight of AD-1 is on 07/081982.