Three-dimensional drawings tha give each workman in the aircraft factory a clear view of the manufacturing detals are helping to speed airplane production at the Douglas plant. These cutaway drawings show at a glance the principal features of the plane and how they fit - like a three- dimensional jigsaw puzzle - into the finished product. This saves the time required in reading and fathoming the blueprints, and speeds up considerably the planning and operation of assembly lines. Since the aircraft industry is absorbing thousands of new employes in its rapid strides toward mass production, this simplification is of vast importance. The phantom drawings. prepared from original plans are placed before assembly-line workers so each has an casily understood diagram of his part of the work and how it fits into the whole.