[Radoye]

Speaking of B-17 gunships, did anyone do the "Old 666" yet?

http://en.wikipedia.org/wiki/Old_666

...increasing the number of machine guns from 13 to 19, replacing the waist gunners' standard single guns with twin guns, replacing all .30 cal machine guns with the larger and more powerful .50 cal, and adding a fixed-position gun that could be fired from the pilot's station. Zeamer's crew put guns where they didn't even need them, and left spare machine guns on the aircraft's catwalk; if a gun jammed at a critical moment they could dump it and quickly replace it. These modifications made Old 666 the most heavily armed bomber in the Pacific Theater.