As the name suggests, the JPAA B1-B is a bomber varient of the JPAA. The A designation was skipped for the secondary designation due to confusion between the A1-A and the B1-A. The B1 is a redesign of the original JPAA with the sole intention of making an aircraft which shares critical components, can preform similarly to, and still be able to recognized as a JPAA. The design changes are the addition of two more Tier II turbojets, Assigned Bomb pylons, longer fuselage, and wider wing suface, allowing for more lift. The sacrifices of the design changes are faster fuel consumption, slower overall speed over it's older brother, and wider turning circle