FSX USAF – Rockwell B-1B “Bad to the Bone” This standalone full package of a modified version of Alphasim’s B1B. It sports the BX tail code of Aeroworks Flight Center IV in Railroad Valley. The package includes one scheme, a sound fix for lower volume, updated autopilot, differential brakes and various other upgrades and changes. It uses only the advanced flight model. Base model by Alphasim. Updates by Jason L. Terry.