As always, only four bucks. USBP #5 includes:
- McDonnell-Douglas ATB: The little know third competitor for the B-2
- McDonnell-Douglas/Boeing DF-9: A Mach 10 global-range strike/space launch system from the 1990′s
- Boeing Model 701-273-5: A supersonic bomber with an extreme inverse-taper wing
- Fairchild N-9: An early 1950′s nuclear powered concept
- Martin Model 223-5: A predecessor to the B-48 with canards
- Rockwell D645-5: A subsonic 1978 flying wing bomber designed to use a laser for defense against fighters and missiles
- North American 464L: NAA’s X-15 derived orbital spaceplane concept for the Dyna Soar program
- Boeing Model 464-17: 1946 four-turboprop strategic bomber, a step toward the B-52