Boeing B-17 Flying Fortress - Mixed Formation
A mixed formation of B-17s based on Hawaii early in 1942, showing the older B-17D to the right and the more familiar B-17E to the left. The smaller tail plane of the older aircraft is very obvious in this picture.
Boeing B-17 Flying Fortress, Frederick A. Johnsen
. A well researched and illustrated history of the B-17, with a very strong section on its combat record, an interesting chapter on the efforts made to improve the aircraft (including a number of suggestions that didn't enter production) and a good selection of colour pictures of the aircraft. [see more
How to cite this article:
Rickard, J (9 December 2007), Boeing B-17 Flying Fortress - Mixed Formation, http://www.historyofwar.org/Pictures/pictures_B-17_mixed.html