Meet the most fascinating part of the F-35: The $400,000 helmet Sorry, a summary is not available for this article at this time. Please try again later. The F-35 fighter jet, developed by Lockheed Martin, has a fascinating accessory. The pilot’s $400,000 helmet enables him or her to see through the jet’s skin, using a number of specially positioned cameras. (Video: Zoeann Murphy/The Washington Pos