Before revision: SpaceLiner is a concept for a suborbital, hypersonic, winged passenger transport, conceived at the German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt, or DLR) in 2005.
After revision: supersonicSpaceLiner is a concept for a suborbital, hypersonic, winged passenger transport, conceived at the German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt, or DLR) in 2005.