Sleek and stealthy, it resembles something from Star Wars. In fact, this is what British warships could look like in as little as 35 years. With RAF jets already being replaced by drones piloted by men sitting at computer screens many miles away, the Royal Navy is now investigating how technology will change the fleet. The answer, it seems, could be a generation of largely remote-controlled seafaring beasts with ‘speed of light weapons’ and a hull that can make them invisible to the naked eye. Glimpse of the future: Engineers have unveiled a series of images of the ground-breaking vessel,...