How to become a helicopter pilot?

In our country, to become a pilot, you must meet several physical conditions: the applicant must be between 165 and 185 cm tall; weigh more than 52 kg; and have a resting blood pressure of no more than 18.4/11.7,000 Pascal (138/88 mm Hg); according to the Air Force "C" type vision chart, the applicant's naked eye vision should be above 1.0 respectively, without color blindness or color weakness; there should be no tattoos or tattoos on the body.

In flight activities, about 95% of information comes from vision. Vision changes with height. Vision begins to decline at an altitude of 3,000 meters, and decreases by 5% for every 600 meters. A pilot with vision 1.0 can detect targets 3,000 meters away at high altitudes (referring to small aircraft flying in the sky). If the visual acuity is 0.8, it can only detect targets 2500 meters away. A pilot with daytime vision of 1.0 has a dark night vision of only 0.1. Therefore, pilots need to have good night vision adaptability.

The health of the nose, mouth, and ears is also very important. According to the physical examination standards for pilots, patients with chronic rhinitis and sinusitis are not qualified. During flight, the air pressure in the sinus cavity changes rapidly as the flight ascends or descends, causing obstruction of the sinus openings and easily causing severe headaches. Pilots with dental caries are prone to aviation toothache when flying. Aviation otitis media is one of the diseases that directly affects pilots' hearing and flight safety.

As flight altitude increases, atmospheric pressure decreases. When the temperature is constant, the volume of a gas is inversely proportional to the pressure under which it is pressed, that is to say, the smaller the pressure, the greater the volume of the gas. Gastrointestinal gas production is likely to increase at high altitudes, resulting in gastrointestinal gas accumulation. If the gastrointestinal function is poor, it will cause increased abdominal distension and abdominal pain.

However, not all people with excellent physical fitness are suitable to be pilots, especially those engaged in civil aviation transportation. An excellent pilot must not only have excellent physical fitness, but also have good psychological quality.