Oklahoma shop wins aerospace contract to 3D-print Microvanes February 5, 2021 Metro Aerospace Rapid Application Group has signed an agreement to supply Metro Aerospace with additively manufactured Microvanes, which affix to the exterior of an aircraft’s fuselage to reduce drag and improve fuel efficiency. “Given the rigorous standards and the extreme operating conditions for the Microvanes, SLS (selective laser sintering) with glass-filled materials [is] the only realistic choice,” said Jason Dickman, the Broken Arrow, Okla., company’s COO. “To meet the rigorous manufacturing requirements, we qualified our sPro 60 HD-HS SLS platforms and Duraform GF materials from 3D Systems, achieving the first article inspection reports and traceability to meet FAA regulations.”