Helicopter Sikorsky UH-60L Black Hawk Serial 70-1536 Register 90-26302 used by Northrop Grumman ,US Army Aviation Army. Aircraft history and location Aircraft History 90-26302 US Army Aviation US Army Northrop Grumman Sikorsky UH-60V Black Hawk US Army Redstone and Northrop Grumman conv to UH-60V prototype in 2017 Send Updates Use APP to upload photo @ (optional) When Now? / / Send