In fact, the X-15 vehicle cannot be called a plane, but a model with a seat on a rocket, and was created with the aim of setting a record.
The vehicle was also flown by a B-52 bomber. The SR-71 Blackbird, a military spy plane that flew in 1976, was able to set a record for flying without a rocket or an engine. Of the two supersonic passenger airliners ever to fly commercially, Concorde’s top speed was 2.04 times the speed of sound (1,350 miles per hour). The passenger plane being built by Hermeus has broken the record for the fastest jet-powered plane by a wide margin and can fly up to 5 times the speed of sound. The Hermeus company’s initial focus was on aircraft engines. fighter jets The design of a new type of engine, based on the types of engines used in airplanes produced by General Electric, has been tested since February 2020. The new type of engine will combine 2 common technologies. The turbo jet engine used in airlines will be combined with a ramjet engine (which operates at speeds faster than sound). Initially, the engine will be used in the Quarterhorse unmanned vehicle.