Raytheon loses bid to halt new U.S. Air Force look at radar bids

WASHINGTON, Oct 26 (Reuters) - A U.S. federal appeals court has denied a lawsuit filed by Raytheon Co that sought to halt the U.S. Air Force's reevaluation of bids submitted for a new $1 billion long-range radar by Raytheon, Northrop Grumman Corp and Lockheed Martin Corp.