Sikorsky and Sierra Nevada Corp. confirmed today they will not protest the Air Force's decision to replace the Bell UH-1N Huey with Boeing and Leonardo Helicopter's MH-139, freeing the service to move ahead with the long-awaited procurement. "After a thorough review of the debriefing materials, Sikorsky has chosen not to protest the U.S. Air Force’s decision on the UH-1N Huey Replacement Program," a company spokeswoman said in an email Tuesday. "Sikorsky remains confident that its HH-60U Black Hawk offering is...