Production. A-20 attack bombers. Long lines of A-20 attack bombers roll ceaslessly, night and day, through the Douglas Aircraft plant at Long Beach, California. The A-20 is used by the American Air Force and the Royal Air Force (RAF) for hedge hopping and strafing operations against ground troops and installations--also for reconnaissance work and night fighting. It is armed for its several duties with light and heavy caliber guns in varying combinations