Use w/ default AI aircraft. High- altitude contrails are now enabled by MS for use on each aircraft, jet or prop, single or multi-engine, by using the FS9 version of the aircraft.cfg "EFFECTS" section to specify them. The temperature below which the contrails occur can also be defined in aircraft.cfg by the user. Included in d/l are new AI contrail, and revised aircraft.cfg w/folder structure to make a extra "AI" copy of default AC. This allows default(or other)contrail to be used for "hand" flying same aircraft. Easy manual installation with all new filenames. By Jan Rosenberg.
