It was a research and developing institute , connected with the flight department of the School of Mechanical Engineering in Belgrade , but administered by the Yugoslav army .
The Aeronautical Technical Institute was founded in 1946 .
Aeronautical Technical Institute was a research and developing Aeronautical Technical Institute , connected with the flight department of the School of Mechanical Engineering in Belgrade , but administered by the Yugoslav army .
The Aeronautical Technical Institute was founded in 1946 .