You may have seen the post about Mark Serbu shooting a full auto MP5 out of a Cessna. While that is neat, here are the big boys. My friend Alexander V. took these pics at the Lyon Air Museum.
According to the Lyon Air Museum website, the B-17 “Flying Fortress” typically had a compliment of thirteen Browning M2 .50 cal machine guns.
That is some serious superiority of the air.