A bit more about the ball turret

Another factoid about the ball turret on the B-17 at the 390th Memorial Museum Foundation #b17 #390thmemorialmuseum #boneyardsafari #aviationsafari

https://video.wixstatic.com/video/44d869_f4108cd4ebec42e9b5765132ee634f37/360p/mp4/file.mp4