One of America's deadliest contributions to wax in the air is the new Lockheed interceptor, a twin-engine plane reported to have a speed of 500 miles an hour. Built to chase bombers out of the sky, it can climb 4,000 feet a minute. The Lockheed “P-38" carries a one-pound rapid fire cannon and five machine guns. It has a forty-two-foot wing span and is thirty-eight feet long. If it lives up to its reputation of bettering eight miles a minute, it is probably the world’s fastest warplane.