On the contrary, stealth ships are still very much in development and also in service today. Of course, with radar, it is no longer possible to avoid detection. However, what stealth ships aim to do is to mask or minimise its radar feedback.A layman introduction to radar: radar sends out pings in a circle around the sender (thus a maximum range is present) and these pings bounce off any solid objects in its path and the amount of feedback gives the size of the object. This is a lot like a bat's sense. In reality, radar signatures are analysed and an estimation of how big the vessel is by on...