The is a replacement sound set for the DC-9 Classic.
Created by Raymond Norum of RNJLabs - www.rnjlabs.com
The sound files contained within this package are a bit louder and more powerful than those included in the original DC-9 Classic sound set. While this may not be more realistic than the original sound set, it certainly has a great impact on the overal immersion factor and feeling of being there when flying the DC-9 Classic.