The firepower of a P-38
4 Browning .50 MG's and a 20mm cannon

Firepower

This is a B-17G fitted for testing the advanced VB 10 to 12 "Roc" series of guided “smart” bombs developed by Douglas Aircraft, MIT and the National Defense Research Committee between September 1944 and May 1945. They were fitted with two circular shrouds, the front for directional steering and the back to slow down the bomb to facilitate the tracking and guidance by the bombardier. The VB-10 had a TV camera so that the bombardier could track the bomb via the image on his display set.

Roc 'smart' bombs

American Consolidated B-24 bombers (Liberator) of the 464th Bomb Group, 15th Air Force, attack the railway marshalling yards at Heiligenstadt, near Vienna, Austria.