The production version of the X-32 was supposed to have a radar blocker fitted over the front of the turbine to hide the blades. Probably not quite as effective

The production version of the X-32 was supposed to have a radar blocker fitted over the front of the turbine to hide the blades. Probably not quite as effective as the serpentine duct seen on the F-22 and F-35, but it would significantly reduce returns.