Air Attacks on German U-boats, WWII. German U-boat incident #3992, August 9, 1943: Plane attack on the U-boat, U-664, by Ensign P. M. Rockett, USNR, from USS Card (CVE-11). Crew can be seen on the conning tower making ready to abandon ship which is going down by the stern for the last time. Insignia is a “smiling swordfish.” 44 survivors were picked up by a destroyer and transferred to Card. Official U.S. Navy Photograph, now in the collections of the National Archives. (2015/8/18).