AF2 – Sound Upgrade flight2000it 6 years ago AF2 – Sound Upgrade. Improved sounds for the Bombardier Dash 8 Q400. Install instructions included. By Aaron R. Swindle 5.5 MB FSX/FS2004/AF2/P3D/XP10 – Aerobatic Box Placer V1.00– FS2004 Maule M-7-260 UpdateFSX – Dornier Do-335 Pfeil Updated Package