This video about the history of the Czechoslovakian L-39 training aircraft, then the flight to aerobatics and landing approach with simulated engine failure. The flight was performed according to my recollections of flights while being trained as a cadet in a flight school 30 years ago.
The video is of an entertaining and informative nature and does not reflect the methodology of flight procedures, although the flight was performed in exact accordance with the instructions of the flight manual at that time.
I recommend watching it at the highest quality of the supported playback device.