This is a RJ-1 reconnaissance aircraft, designated IJ-21 in the Yugoslav Air Force. As 24404 it first served in the Yugoslav Air Force and from 1992 with the Serbia and Montenegro Air Force. After phase-out in 1996 it ended up in the storage area of the Muzej Vazduhoplovstva Beograd where it was first noted in Jun-1997. Unfortunately only the fin could be photographed, the rest of the aircraft was obscured.