Developed in the late 1950's by the Yassian Republic Air Defense, the YRF-51 Silver Legend was the first all-weather Multi-role Aircraft to be powered by jet engines which were practically a myth at the time still, however, the aircraft suffered from major faults in the start of its career, one primary example is its lack of manuverability compared to prop engine aircraft at the time, making this aircraft unsatisfactory for Air-Air combat and was left as an attacker until 1962 when the last Prop-engined fighter plane was decommisioned, finally putting this aircraft on par with other jet powered craft such as the ACF-212 Kanyuk, Despite being built in the 50's the "Silver Legend" continued to be a large part of the Yassian Defense Force up until 2013 when it was finally replaced in the naval fleets by the YF-119 Taipan.