The airship

The aircraft lighter than air, which is a combination of the balloon with the mover (usually a screw with an electric motor or internal combustion engine) and the system of the orientation control (steering control), through which the airship can move in any direction regardless of the direction of air flow.
The shape of the airships are divided into:

• cigar-shaped with reduced frontal resistance (the majority);
• ellipsoid — ellipsoid (reduced resistance to lateral wind);
• disc — disc;
• lenticular — lenticular lenses;
• toroidal in the torus intended for use as an air valve;
• V-shaped;
• "vertical airships", shaped like flying skyscrapers — designed to fly over cities, where the streets create the conditions for a strong wind blowing along the buildings, which leads to turbulent currents of air.

Also this category includes small RC derezhabli. It is worth noting that there are a number of restrictions for flights, for example - "fish" can swim only in closed spaces, since is very sensitive to wind. But such conventionality is not characteristic of all kinds of toys.

Translated by «Yandex.Translator»