Blue Thunder

Blue Thunder is a movie starring Roy Scheider, Warren Oates, and Candy Clark. The cop test pilot for an experimental police helicopter learns the sinister implications of the new vehicle.
Los Angeles, California. Officer Murphy, a veteran Metropolitan Police helicopter pilot suffering from severe trauma due to his harsh experiences during the Vietnam War, and Lymangood, his resourceful new partner, are tasked with testing an advanced and heavily armed experimental chopper known as Blue Thunder.