David Warren Dead

David Warren, the father of black box dead on 21 July 2010. Black box is a data recorder which can survive from all types of destruction and fire in the plane crash. It is an orange colored box which recodes all conversation between the pilots in the cockpit and communication between the pilots and the control room etc. He jointed as a scientists in Melbon plane research laboratory. In 1953 he became a member in the first passenger plane accident inquiry team. In 1934 he lost his father also in a plane accident. He introduces the first black box in1956 that records the conversation between the pilots and the control room for four hours. But it has not got enough popularity. But later it became an essential part of all air crafts.