An aerospace manufacturing company specializing in variable aerospace craft and responsible for building the original VF-1A Valkyrie variable fighter. Originally two seperate companies, Stonewell and Bellcom subcontracted along side Shinnakasu Heavy Industry and Centinental to build the VF-1 Valkyrie and by 2011 Bellcom had merged into an aircraft development division of Stonewell. That same year, Stonewell Bellcom and Shinnakasu Heavy Industry collaborated in a joint project for a general-purpose lightweight air superiority variable fighter that would eventually be called the VF-5000 Star Mirage. By 2012, Stonewell Bellcom and Shinnakasu aerospace development divisions merged to form the new company Shinsei Industry and would go on to develop the VF-5000 as their first development project and mass-produced variable fighter. Using real world inspiration, the name Stonewell was a variation on Rockwell International while Bellcom grew from Bell Aircraft Corporation (or Bell Helicopter Textron), a well known helicopter design and manufacturing company.