In 2002, Lockheed Martin began learning a modified bomber version of the F-22 Raptor fighter, featuring a delta wing, longer body and larger range and payload. The FB-22 medium bomber relies on existing and planned capabilities of the F-22 fighter, a heritage that would limit development costs and risks should the concept go into production. The FB-22 was planned to serve as a regional bomber, a role previously covered by the general Dynamics F-111 Aardvark.
The biggest difference between the F-22 and FB-22 is the wing, which might be very close to a delta wing. it's not precisely a delta, however a much larger wing, which might increase the number of space} that could carry bombs. The longer, thicker delta wing would enable the FB-22 to hold up to 80 percent more fuel than the F-22, giving it a correspondingly larger range.