FS2004 BAC One-Eleven 400 Demonstator. The second BAC One-Eleven 400 built acted as a demonstator in its early days. January 29th 1966 saw it at the opening of Auckland International Airport taking part in what was one of New Zealands largest air displays. It was on demonstration to NZNAC which unfortunately for BAC bought Boeing 737s. It was soon sold as an executive jet. Requires the BAC One-Eleven 400 model by David Maltby. By Garry Russell.