The vacuum airship could be made differently. Instead of one large chamber, we will make something like a whale’s lung. Many individual bladders, spheres with a diameter of 10 cm. Then we need a voltage of about 10 x 6 volts. This voltage can be further reduced or the diameters of the bladders can be increased, assuming that such a airship will only operate at an altitude of 10 km. Then the air pressure is 1⁄3 of the pressure on the Earth’s surface. Since the bladder shell would be very thin, so these whale lungs would weigh little, we must assume that after some time air will get inside. Therefore, after some time the bladder will collapse when the voltage is turned off, release the air and create a vacuum again when the voltage is turned on. Flying at an altitude of 10 km has a number of advantages, there is no wind, no clouds, at such an altitude there are only jet streams, such as sea currents in the oceans, and in addition there is easy access to sunlight, which allows power from photovoltaic cells. And of course, less air resistance. The voltage, the diameter of the bubbles and the altitude at which the airship would operate, these relationships would have to be subjected to an optimization program.
The vacuum airship could be made differently. Instead of one large chamber, we will make something like a whale’s lung. Many individual bladders, spheres with a diameter of 10 cm. Then we need a voltage of about 10 x 6 volts. This voltage can be further reduced or the diameters of the bladders can be increased, assuming that such a airship will only operate at an altitude of 10 km. Then the air pressure is 1⁄3 of the pressure on the Earth’s surface. Since the bladder shell would be very thin, so these whale lungs would weigh little, we must assume that after some time air will get inside. Therefore, after some time the bladder will collapse when the voltage is turned off, release the air and create a vacuum again when the voltage is turned on. Flying at an altitude of 10 km has a number of advantages, there is no wind, no clouds, at such an altitude there are only jet streams, such as sea currents in the oceans, and in addition there is easy access to sunlight, which allows power from photovoltaic cells. And of course, less air resistance. The voltage, the diameter of the bubbles and the altitude at which the airship would operate, these relationships would have to be subjected to an optimization program.