Flying from the Black Hole
In 2009, Robert O. Harder published Flying from the Black Hole: The B-52 Navigator-bombardiers of Vietnam.
In the book, he seeks to give Air Force navigators and bombardiers the recognition he feels they deserve by describing their contributions. In particular, he describes the duties non-pilot officer aircrew in the Vietnam and Cold War-era B-52 Stratofortress (strategic bomber). As a navigator-bombardier himself, Harder provides a unique and authoritative perspective on the topic.