Let our virtual B-17 airplane sound lull you to sleep with a low frequency engine drone in stereo. This is an 8 hour long version designed to run all night. This relaxation sound is brought to you by [ Ссылка ] , purveyors of unique sounds for tinnitus and background noise masking

Public domain film clips from the documentary 'Memphis Belle; A Story of a Flying Fortress' are courtesy of the National Archives and Records Administration via archive.org.

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