A nearly complete RAND Corp. study, which has already been briefed to Air Force leaders and members of Congress, recommends that the service replace its 45-year-old UH-1N Huey helicopters with excess, reconfigured Army UH-60 Black Hawks -- an attempt to recapitalize the outdated Huey fleet more affordably than by acquiring new aircraft. The business-case analysis suggests that the Air Force take on 63 UH-60A helicopters retired by the ground service and have them converted to UH-60Ls by the Corpus Christi...