A weak point of a stealth jet is its radar! Why? Because it can’t have advanced RAM covering it, the nose cover has to be radar-open so that it doesn’t interfere with its own radar! In order to minimize the risk of detection, the radar is locked into an upward-facing angle so that it won’t reflect radar waves back down to ground-based radars. The sides of the radar are covered with RAM material to block detection of the struts and cables behind the array to further minimize the chance of someone seeing it from an angle. But if the radar is flying above them and looking downwards, that antenna will light up like a mirror under a spotlight; pilots must always be aware of limitations like this in stealth planes, you are NOT invisible.