The quot;Tunnel Gunquot; position, on the early B-24s, allowed firing from the aft belly. It was not very effective, due to the gunner's limited visibility.
The CAF's B-24A Liberator WW-II Bomber known as quot;Diamond Lilquot;. The Commemorative Air Force: Airpower History Tour at the Fargo Air Museum. Hector airport, Fargo, ND.