Aerotec A-122 Uirapuru

It was a low-wing monoplane with tricycle undercarriage that accommodated the pilot and instructor side-by-side.

The problem was solved after a crash in which an instructor described his stricken aircraft's responses to his control inputs all the way to the end.

Uirapurus then received a ventral fin under the rear fuselage to correct the issue.

In 1980 interest by the airforce in an improved version led to the development of the Uirapuru II, later known as the A-132 Tangará.

Data from Jane's All The World's Aircraft 1971–72 [6]General characteristics Performance

A-122A(Military) A-122C(civil)