Northrop Grumman begins flight tests with MS-177 sensor 0 01.03.2017 20:57 United Press International (UPI.com) Northrop Grumman began flight testing its RA-4 Global Hawk unmanned aircraft system equipped with a UTC MS-177 multi-spectral sensor. Партнёры Smi24.net Все новости за 24 часа Музыкальные новости Агрегатор новостей 24СМИ