[Editor's note: this story has been modified to reflect a correction. The Army's retiring Black Hawk is the UH-60A, not the M variant.] The Air Force could lay out its acquisition strategy for the UH-1N replacement this spring, a plan that has moved away from a modified service aircraft option toward a possible sole-source acquisition. The service is planning to finalize its acquisition strategy for the UH-1N Huey helicopter replacement by April or May this year, Air Force Secretary...