A look at Spooky
In the developmental process of the modern USAF airborne gunship, the AC-47D was very special.
She mounted a trio of MXU-470A modules portside each with a 7.62x51mm GAU-2B A (M134) Minigun.
The affect was, well, spooky.
Here is one Spooky mock-up on display at the Air Force Armament Museum outside of Eglin Air Force base in Crestview, Florida that took photos of awhile back. However, it should be pointed out that the airframe in question was never an actual AC-47, but rather a visually modified regular unarmed C-47– but you get the point.