雅科夫列夫雅克-52 – 照片和视频

这 雅科夫列夫·亚克-52 （俄语：Яковлев Як-52）是苏联的主要教练机，于1976年首次飞行。它仍在罗马尼亚由Aerostar生产，如Iak-52，它根据现已解散的CONCON社会主义贸易组织内部的协议获得了制造权。Yak-52最初是苏联DOSAAF训练组织为学生设计的，该组织同时训练民用运动飞行员和军事飞行员。

源： 雅科夫列夫雅克-52在维基百科

这 雅科夫列夫·亚克-52 is a Soviet primary trainer aircraft that was designed for aerobatic training and competition. It first flew in 1976 and was produced in Romania by Aerostar from 1977 to 1998. The Yak-52 is a two-seat variant of the Yakovlev Yak-50, a single-seat aerobatic aircraft that won several world championships in the 1970s and 1980s.
The Yak-52 has a metal airframe and a radial engine that can operate in inverted flight for up to two minutes. The Yak-52 has a pneumatic system that controls the engine starting, landing gear, flaps, and brakes. The Yak-52 can perform all the maneuvers in the Aresti catalog and is capable of withstanding +7 and -5 Gs. The Yak-52 is still used today by aerobatic pilots and enthusiasts around the world.