Regular MiG 21 flights
Pilots of the Croatian Air Force and Air Defence will spend today, on Thursday, 2 August 2012, the regularly scheduled training on the supersonic MiG-21 aircraft, during which from 10.00 to 15.00 hours, one can expect a sonic boom.
The training will be conducted above the territory of Osijek-Baranja, Brod-Posavina, Sisak and Zagreb County, and will be run at an altitude above 11 000 metres, taking into account all security measures.