My father-in-law was in the gunnery training command in WWII. In the beginning of the war he would make mock attacks in AT 6s on B-17s. The gunners in the B-17 would “shoot” gun cameras at his plane; the film would be developed after landing.
At the end of a mission the B-17 pilot (a good pal of his) informed him that his gunners were out of film and that he could head back to base. Bill wheeled his T-6 over and spiral dove at about 45 degrees, power-off to dump his altitude. After a few turns he looked back for some reason. Right on his six, turning inside him at a very steep angle was the B-17 (with a full crew aboard).
B-17s could dive.
eskimo