Flat-Bottom Shuttle Systems is a modular parts pack which allows you to build flat-bottom space planes! These parts have a triangular cross-section of 2.5m and, due to the flat bottom, provide some lift. Please note, the RasterPropMonitor mod is required for the IVAs and will have to be downloaded separately. Comments and feedback are appreciated.  Updated: 3/17/2019 The latest update includes surface-attachable wings, added adapters for Mk2, Mk2.5 and Mk3, and new engine mounting