US: Six feared dead after military planes collide midair at Dallas airshow, probe underway
US: Six feared dead after military planes collide midair at Dallas airshow, probe underway
US media reports said the B-17 is an immense four-engine bomber, and was a cornerstone of U.S. air power during World War II. The majority of B-17s were scrapped at the end of World War II and only a handful remain now.