Every year from Mar. 21 to Mar. 31 the regular Iranian Air Force holds an open house and exhibition similar to those one might see in North America or European nations.
The Open Day of the Islamic Republic of Iran Air Force is a legacy left from the former Imperial Iranian Air Force where military installations were opened to public more often than not.
Actually, the recent air show at Dezful 4th air base also coincides with the Persian Norooz and the annual trips to former Iran-Iraq war fronts/trenches taken by the enthusiastic Iranian public.
Among the aircraft on display, obviously, several U.S. types locally modified, including the legendary IRIAF F-14 Tomcat, the F-4E Phantom (like the two involved in a close encounter with an American F-22 over the Persian Gulf last year) and the F-5 Tiger.
The IRIAF still operates some Mig-29 Fulcrums as the one depicted in the image below.
Su-24 Fencer:
Image credit: Danial Behmanesh/nahaja.aja.ir