"Had it not been for the vital contributions of the four men and their inventions described in this book the Battle of Britain could not have been won by the Royal Air Force. Each of these brilliant men contributed enormously to the aircraft and equipment upon which the gallant RAF fighter pilots depended to take on and defeat the hitherto overpowering Luftwaffe during Hitlers European onslaught. Watson Watt was the moving force behind Britains vital early warning radar network that allowe...