High-altitude Plane / Stratoplan K.E.Tsiolkovsky

The high-altitude aircraft was invented by K.E. Tsiolkovsky in 1932. In the lower layers of the atmosphere, the plane cannot get high speeds. Its economic speed is 50 m / s or 180 km / h. If we wanted to increase its speed 2, 3, 4 times, then the power of the motors would have to be increased with the same total weight of the airplane 8, 27, 64 times, and for many reasons this is very difficult to do; for example, the motors would be fragile, the propeller would burst from rapid rotation, and the plane would not withstand the pressure of the oncoming stream, etc. In thin air, it is easier to achieve increased speed. Accurate calculations show that when the rarefaction of the medium reaches 4, 9, 16, 25, then the speed of the aircraft can increase by 2, 3, 4, 5 times, but provided that the engine power is increased by 2, 3, 4, 5 times, and not 8, 27, 64, 125 times, as is necessary below with constant air density.