There was a B-17 waist gunner named Ben Warmer that got 7 confirmed on one mission...
Quote:
Some units gave the gunners more recognition, and some of their stories have survived. In 1989, for example, the newsletter of the 99th Bomb Group Historical Society reprinted an old article from Impact Magazine titled "Our Only Enlisted Man to Become an Air Ace." The subject was SSgt. Benjamin Warmer, who joined the 99th as a B-17 waist gunner and flew during the invasion of Italy. The piece credits Sergeant Warmer with shooting down two planes on a mission to Naples and seven more during a strike against German airfields on Sicily.
Three More Candidates
Sergeant Warmer's story also is recounted in a 1986 book, Aerial Gunners: The Unknown Aces of World War II, by Charles Watry and Duane Hall. The book confirms Warmer's nine kills but challenges the claim that he was the only enlisted gunner ace in World War II. It names several others, including three noncommissioned officers who flew with the Army Air Forces.
Aerial Gunners reports that, in the China-Burma-India theater, TSgt. Arthur P. Benko may have downed nine planes and TSgt. George W. Gouldthrite five. Watry and Hall also credit SSgt. John P. Quinlan with five victories in Europe and three in the Pacific. Sergeant Quinlan was the tail gunner of Memphis Belle, the B-17 bomber that became the subject of a wartime documentary and a recent fictionalized movie. Neither Sergeant Quinlan's name nor those of the other three airmen appear on USAF's official list of aces.
More info
here...and it's an interesting site. All the things out there about the Belle, and I never knew that Quinlan was 6th on this list.