The SNECMA Atar is a French turbojet engine developed by Snecma. It has powered a variety of military aircraft since its introduction in the 1950s. Originally derived from German WW2 engine designs, the Atar series evolved significantly; it was eventually used in aircraft such as the Mirage IIIE, becoming renowned for its reliability and performance, delivering thrust levels of approximately 61 kN and enabling speeds over Mach 2. Its straightforward design facilitated maintenance and upgrades, contributing to its longevity and widespread use.