FSX Bristol Britannia Sounds. This sound folder has been carefully compiled by Terry Hall (tlhflfsxatgmail. com) using authentic archive sound recordings of the Bristol Britannia powered by four gas turbine Bristol Proteus engines. The folder is designed to be used in synchronisation with the FSX version of the Bristol Britannia originally designed by Jens B. Kristensen, and must not be used for any other purpose. INSTALLATION 1. Download the zip file britsounds. zip 2. Locate your sound folder for the Britannia at Microsoft Flight Simulator X SimObject Airplanes Britannia sound and rename this file soundold 3. Create a new folder named, sound to replace the renamed folder 4. Unzip the contents of the britsounds. zip file to the newly created sound folder. 5. Fire up FSX and enjoy the sounds of the Whispering Giant.