aircraft

A aircraft it's a vehicle what have the ability to move through the air (that is, without being in contact with the surface or with the water). Within this group, there are two classes of machines that allow air travel: streamlined (whose weight is greater than that of air and, therefore, have to be sustained through some mechanism) and the aerostats (Weighing less than air, they float more easily).

The most common aircraft today are aerodynamic vehicles. In this set we can find the planes already helicopters. As they are heavier than air, these aircraft must be supported. According to system used, it is possible to distinguish between aerodynamic type aircraft with fixed wing and the aerodynamics with rotating wing.

It should be noted that there are many types of aircraft. To discover them, nothing better than knowing the different classifications that are made in this regard:
- Starting from the criterion of what its use is, we find, above all, military aircraft and civilian aircraft.
-Within military aircraft, they are, based on their function, from fighters to aircraft carriers through bombers or reconnaissance aircraft.
-In the field of civil services, we can underline the existence, based on the activities they carry out, toilets, passenger transport, merchandise ...

The aerostats, which today lost popularity, were the first aircraft. Its operation is based on the use of one or more tanks with a gas of lower density than the air, which allows the aircraft to rise and float. The airships and the hot air balloons are examples of this type of aircraft.

The aforementioned aerostats, which were able to design and fly thanks to a fundamental element, have their origin in the 19th century: they were based on the famous Archimedean principle.

We can say that the airship has the particularity of being the first controlled aircraft that made a long-duration flight and was used, above all, in the first three decades of the 20th century. However, the origin of this device can be found as early as the second half of the 18th century, which is when Jean Pierre Blanchard designed something similar.

The best known model of all time is the one that came to be called Zeppelin. It was "baptized" in July 1900 and was named in honor of the person who most experimented with rigid airships. We are referring to Count Ferdinand von Zeppelin.

During the First World War they played a fundamental role, since they were used by both sides not only to recognize rival troops but also to proceed to use air weapons.

When the aircraft can move outside the Earth's atmosphere, it is called spacecraft. These vehicles are made up of a rocket (with the fuel and engines that allow the atmosphere of the Land) and of the ship itself (which may or may not be manned).

The choice of the type of aircraft depends on the trip to be made. To get a panoramic view of a place, you can use a hot air balloon. Yes one person you want to travel from one continent to another, you will travel by plane. When a government intends to investigate another planet, it will send a spaceship.