In 2013, Bell Helicopter ... military operations. The U.S. Army's helicopter fleet is rather large, but it's not the only service to use choppers. The Navy has been using the Sikorsky MH-60 ...

[Courtesy: Boeing] The U.S Air Force’s plans to update its aging fleet of nuclear security helicopters with Boeing’s (NYSE: BA) MH-139A Grey Wolf are once again in motion and have advanced to ...