It is a virtual study in a theoretical whirling wingedaircraft.
这是一个在理论旋转翼飞机的虚拟研究。
2
The Convair XF-92A was the first delta-wingedaircraft for the United States.
该肯韦尔XF型- 92A条是第一个三角洲翅的美国飞机。
3
The Ilyushin Il-103 is a single-engined, low-winged training aircraft, the Ilyushin Design Bureau started its development in 1990 in the Soviet Union and the aircraft is now produced in Russia.