Its backstory The I-198D Aggressor is a Single engined interceptor developed as only a Paper Project, but in early 1965, AXP found some of TRJX’s blueprints, TRJX had went bankrupt in late 1947 after a blunder in management. The I-198 Aggressor had 6x15mm ART-425 Cannons mounted in the wings, 5x23mm FAUX-32 cannons in the nose. She used the ultra powerful J-4530 engine, and she featured a unique design showing some of that Sci-Fi look. Only 526 were produced before they stopped production in favor of newer aircraft. There were several variants ranging from the V-14 to the I-198YS/5. She also was able to mount 4x AX-43 Short Range AAMs. The I-198D was the first to use AAMs, however the I-198V-14, the prototype that was developed into the I-198A. She was officially retired in March of 1970 about 11 years after her introduction.