It's the world's largest singleengined biplane, and stayed in production in Poland until 1991.
它是世界上最大的单引擎双翼机，而且在波兰一直有生产直到1991年。
2
Media reports suggest that the mishap occurred when the single-engined aircraft was caught by a gust of wind while hovering a few feet above the ground before landing.
媒体报道显示，事故发生时这架单引擎飞机正在离地几英尺的空中悬停准备降落，此时遇到了阵风。
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.