The Pentagon may finally have a solution to the problem F-35 pilots have had with helmets. Bloomberg News reported Nov. 10 that Lockheed Martin Corp., the plane’s manufacturer, will move forward with a redesign that would eliminate the green glow that pilots see when they fly in very low light. The refit would include installation of light-emitting diodes, to replace the liquid crystal displays that are typically used but have proved to be the likely cause of the problem. A Lockheed spokesman would not provide Bloomberg with a price for the fix. The story did say that the helmets cost $400,000 each.