The slightly modified (bass boost) sound of an artillery system re-aligning itself.
http://upload.wikimedia.org/wikipedia/commons/thumb/a/a4/M113AS4_turret.JPG/512px-M113AS4_turret.JPG
Extracted from a video (http://img.youtube.com/vi/wOmBZerNccI/3.jpg) by a US Government agency, thus public domain. Note that while the video uploader may not be a soldier, the video material was made by an US Army soldier during duty. The extracted sfx were not edited and in this case the public domain still applies even when it's part of a video not made by an US army soldier on duty.
Find many more military sounds in my military sounds pack, also located on Freesound.
http://farm9.staticflickr.com/8070/8213683889_517a10ef52_o.png
On FLAC and OGG Vorbis audio file formats.
Contact me if you have interest in specific sounds for open source or commercial purpose.
See profile for CC BY attribution requirements.
Type
Flac (.flac)
Duration
0:04.000
File size
193.2 KB
Sample rate
44100.0 Hz
Bit depth
16 bit
Channels
Mono
