First thanks for the film on the B-24 attack posted recently. I fully realize than planes dropped DC's on or perhaps I should say near the boats and perhaps bombs ( were bombs ever used?) and that machine gun fire was anti-personnel but it raised my curiosity about the possibility of penetrating the pressure hull by gunfire. Since most of the attacking planes carried .30 &.50 machine guns and possibly 20mm Hispanos would any of these pierce the conning tower or hull under perfect circumstances ( near perpendicularity or multiple hits). Were any heavier weapons carried on aircraft use on sub patrols? ( the 75mm mounted in B-25's comes to mind as a short range possibility). I have "searched" the forums without success. Are there any accounts of actual combat of the converted " flak boats" in the Bay of Biscay beyond the brief histories under the boat numbers here.

What an intresting and quite wonderful site .................GB