When jets and missiles emerged, most aircraft were twinjets, as they had engines on pylons, into the fuselage, or directly onto the wing. Quadjets emerged, but people not have tried the “knife-wing” technology, except the Su-47. Now, when the Duo World emerged, people were already making jet aircraft in the earliest days. Most were quadjets and twinjets, but rather had people not tried the cutting edge “knife-wing” technology. Providing a low manouverability but a huge sweep, it was faster than most bombers of its time. Also with an unusual bomb bay, having the front open from the back, the missiles would have had a tendency to hit the plane when firing, blowing it up. However the missiles were actually launched down onto the slope, where they slid down and when it slipped off, it started flying through the air. However the B-12A experienced excess stress on the airframe when flying near terrain, and was soon retired 13 years later (i will make a forum a few weeks later to try and replicate 13 years because this might be cancelled 13 years later or i wont have time to even play Simpleplanes 13 years later)