Britain Gives World Simplified Navigation -- Direct Navigation by means of the port instrument. A new system of navigation developed by a British firm and used for the first time for the British Army of Liberation D-Day invasion landings on the coast of Normandy is now being turned over to peace time uses its use in ocean liners, trawlers and private yachts transport and private planes will make sea and air travel quicker and safer. This new Navigator of which world patents are held by Britain is not employ radar technique. First chain of transmitting stations will set up a fixed radio pattern over the north sea and large parts of the British Isles and Europe providing and instantaneous position for ships and aircraft. September 24, 1951.(Photo by British Official Photograph).