Although Gulfstream Aerospace has repeatedly denied speculation that it is working on a G600, thought to be a composite-fuselage, long-range widebody business twinjet, last month’s announcement of four new directors at the Savannah, Ga. headquarters hints that the company is looking at new design elements. David Hornick, the former engineering and technology director in charge of composite aircraft assemblies for GKN Aerospace, has been tapped to be Gulfstream’s new director of composite technology. In addition, Joseph Ireland III was promoted to director of mechanical systems; Cindy Jefferson is the new director of initial phase procurement; and Fred Karst was promoted to director of service engineering.