High Quality Content by WIKIPEDIA articles! Straight Flush was the name of a B-29 Superfortress (B-29-36-MO 44-27301, victor number 85) participating in the atomic bomb attack on Hiroshima on August 6, 1945. Assigned to the 393rd Bomb Squadron, 509th Composite Group, it was used as a weather reconnaissance plane and flew over the city before the final bombing to determine if conditions were favorable for an attack. Pilot Claude Eatherly later expressed remorse, received psychiatric hospitalization, and engaged in anti-nuclear activism, and may be the origin of an urban legend that suggests that Enola Gay pilot Paul Tibbets (or other members of the crew) later went insane.