What helicopters are used for 21.03.2019
The helicopter is a unique vehicle. Its area of use is extremely wide. It is much more functional than a plane, although it cannot reach the same high speeds. Helicopters’ main advantage is that they do not require a special long concrete strip for take-off and landing; in fact, they require a rather small area. In addition, the aircraft may be able to land in the open field, on the roof of a house or in the mountains. It only…