A B-17G, like the “Champaign Lady” has (12 ea.) .50 caliber machine guns.
They are mounted as follows:
(2) Chin turret guns.
(1) Left side flexible cheek gun.
(1) Right side flexible cheek gun.
(2) Top turret guns.
(2) Ball turret guns.
(1) Left side waist gun.
(1) Right side waist gun.
(2) Tail turret guns.
Some earlier models also had a single gun mounted in the radio room which was operated by the radio operator. It was eliminated from the later B-17G models.
Each of the guns (barrels) is fed from a 450 shell ammunition box.
This comes to about 60 seconds of continuous firing of each gun.
One of our volunteers made the machine gun replicas for the B-17. We knew replica parts can be bought but they are too expensive for us.
The volunteer, Irv Bence, who has a Civil Engineering degree (a real handy man) made the necessary parts for the guns which took a fair amount of patience and his time. Many of the small parts are hand made and they look very good. Hand made means drilling, sawing, filing or grinding with a Dremmel tool. The hand grips of the guns are made from walnut and were turned on a wood turning lathe. Irv cut them at home and donated them.