Summary and Key Points: Boeing once floated one of the era’s wildest aircraft concepts: the B-1R, a version of the B-1 Lancer bomber reimagined as the world’s largest air-superiority fighter. The plan swapped the Bone’s engines for the F-22 Raptor’s F119s, pushing its top speed to Mach 2.2, and added air-to-air missiles atop its enormous bomb load. Australia, having retired its F-111s amid rising tensions with China, was eyed as a buyer. The B-1…