This is a lower-polygon version of the Big SpacePlane 3.0 (BSP310) and a "heavy" version (BSP320) that has been "guppy-ized" to handle large loads. Also included is a pylon that makes use of the new version of the TX's ability to handle multiple payloads. Scenarios for the original, high-poly BSP310 using the pylon and the latest version of TX are included (but the BSP300 mesh must be downloaded separately from the original download). Some meshes and textures duplicate those in other Burchismo addons, and are safe to overwrite.
Requires Vinka's spacecraft3.dll and Kulch's TX version 5.