Russian fighter. Small aircraft also used for training. Very good flight model, quite simple. With five repaints. Sounds corrected by Rikoooo.
The L-29 Delfin jet trainer jet Czech (1959) was selected in 1963 as a training device standard forces of the Warsaw Pact. It was a straight-wing aircraft with air intakes reactors at the root of the wings and tail T. Over 3500 were built for fourteen different air forces. He was replaced by the L-39 Albatros. (jn.passieux.free.fr)
Author Tim Piglet Conrad - Piglets Peculiar Planes