A US Army UH-60 Black Hawk helicopter flies over Panama City, Panama.Tech. Sgt. Whitney Erhart/US Air National GuardThe US Army is outsourcing training for up to 1,500 new helicopter pilots a year to a private company.The new, civilian-run flight school could run for 26 years under a contract worth up to $10 billion.Army leaders have previously said such a plan could build better flight skills and save money.The US Army is moving to outsource th…