Plane will be able to fly anywhere in the world within 4 hours
 
        This plane will be able to fly anywhere in the world within 4 hours   The engine will be able to fly in outer space too.  British  aerospace firm Reaction Engines Limited is working on an engine system  that will be able to take 300 passengers anywhere in the world in just  four hours.  Even more impressively, the engine will also be used to fly a plane in outer space, as Business Insider reports.  The  engine system is called SABRE, and it relies on a device called the  precooler - technology that cools down the air entering the engineer  system by more than 1,000 degrees Celsius in .01 seconds. That  corresponds to an unheard-of cooling rate of 400 megawatts, and will  allow the plane to “breathe” oxygen.      British  aerospace firm Reaction Engines Limited is working on an engine system  that will be able to take 300 passengers anywhere in the world in just  four hours.  Even more impressively, the engine will also be used to fly a plane in outer space, as...